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Baidu Unveils Xiaodu AI Glasses With 16-Megapixel Ultra-Wide-Angle Camera

Baidu, the Chinese tech giant, reportedly unveiled the Xiaodu AI Glasses on Tuesday. The company introduced the AI-integrated smart glasses in China and it reportedly comes with an AI assistant that can perform several tasks for users. The Xiaodu AI Glasses are said to weigh 45 grams and feature a 16-megapixel ultra-wide-angle camera and a four-microphone array.




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Perplexity AI Begins Experimenting With Ads on Its Search Platform

Perplexity AI, the company behind the eponymous artificial intelligence (AI) search platform, announced on Tuesday that it will begin experimenting with ads this week. An earlier report in August highlighted the company’s intentions of incorporating ads by the end of the year to boost its revenue. The AI firm highlighted that ads will be shown in a format that does not clutter or ruins the user experience of the platform.




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Biden, Xi To Meet In Peru This Week As World Leaders Shift Focus To Trump

US President Joe Biden will meet his Chinese counterpart, Xi Jinping, in Peru on Saturday for the last of three in-person sit-downs between the leaders during the US president's term in office.




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Joe Biden, Chinese President Xi Jinping To Meet In Peru On Saturday

US President Joe Biden and Chinese President Xi Jinping will meet Saturday at the APEC summit in Peru, in what will likely be their last encounter before Donald Trump returns to the White House, US officials said.




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Delhi Covered In Toxic Smog, Visibility Low At Airports Across North India

Delhi-NCR Air Pollution: A sharp spike in Delhi's air pollution was witnessed in the past 24 hours with 30 out of 36 monitoring stations reporting a severe air quality index.




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Biden, Xi To Meet In Peru This Week As World Leaders Shift Focus To Trump

US President Joe Biden will meet his Chinese counterpart, Xi Jinping, in Peru on Saturday for the last of three in-person sit-downs between the leaders during the US president's term in office.




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Delhi Covered In Toxic Smog, Visibility Low At Airports Across North India

Delhi-NCR Air Pollution: A sharp spike in Delhi's air pollution was witnessed in the past 24 hours with 30 out of 36 monitoring stations reporting a severe air quality index.





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Russian exiles plan massive anti-Putin march in Berlin

Russian exiles plan a march Sunday in Berlin demanding the withdrawal of Russian troops from Ukraine, the prosecution of Russian President Vladimir Putin as a war criminal, and the release of all political prisoners. Ricardo Marquina reports. Narrator: Elizabeth Cherneff.





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Biden, Xi to meet in Lima on sidelines of APEC summit in Peru

U.S. President Joe Biden and Chinese President Xi Jinping will meet November 16 on the sidelines of the 2024 Asia Pacific Economic Cooperation, or APEC summit in Lima, Peru, the White House announced Wednesday. The meeting follows the leaders' last in-person engagement a year ago on the sidelines of the APEC summit in California, and their 2022 meeting in Bali on the sidelines of the G20 summit. Biden and Xi are expected to revisit areas of cooperation, particularly the resumption of military-to-military contacts, efforts to combat the global fentanyl crisis and nascent work to deal with the risks of Artificial Intelligence, or AI, a senior administration said in a briefing with reporters Wednesday. The U.S. president will also express "deep concern" over Beijing's support for Moscow's war against Ukraine, and the deployment of North Korean troops to aid Russia, said the official, who requested anonymity to speak on the upcoming meeting. The official said Biden will also reiterate his "longstanding concern" over China's "unfair trade policies and non-market economic practices" that hurt American workers. The official added Biden will raise Chinese cyber-attack efforts on U.S. civilian critical infrastructure as well as Beijing's increased military activities around Taiwan and the South China Sea while also underscoring the importance of respect for human rights. The meeting is likely to be the last between Biden and Xi ahead of the incoming administration of Donald Trump in January. The president-elect has appointed ardent China critics in key foreign policy positions that could lead to a more confrontational U.S. posture toward Beijing. They include Republican Congressman Mike Waltz as Trump's pick for national security adviser and Senator Marco Rubio as secretary of state. Whatever the next administration decides, they're going to need to find ways to manage the "tough, complicated relationship" between the U.S. and China, the official said in response to a question from VOA. "Russia, cross-strait issues, the South China Sea and cyber are areas the next administration is going to need to think about carefully, because those are areas of deep policy difference with China, and I don't expect that will disappear," the official said. Xi is also likely anticipating what the Trump administration plans to do about global trade, particularly whether he will enact promises to impose steep tariffs on all Chinese goods.




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China looks to expand global influence with Xi’s Latin America tour

Taipei, Taiwan — Chinese President Xi Jinping departs on a nine-day diplomatic tour to Latin America on Wednesday, during which he will inaugurate a Chinese-financed megaport in Peru and attend the Asia-Pacific Economic Cooperation Summit in Lima and the G20 Summit in Brazil. Analysts say the trip is part of China’s attempt to expand its global influence and present itself as “a responsible global power” at a time when countries around the world brace for uncertainties following U.S. President-elect Donald Trump’s victory on November 5. “The trip is especially significant since Latin America is viewed as ‘the backyard’ of the United States; and [since] the next U.S. president is likely to return to a unilateral approach in world affairs, it provides China with the opportunity to expand its influence around the world as a champion for global development and multilateral cooperation,” said Zhiqun Zhu, an expert on Chinese foreign policy at Bucknell University. During his state visit to Peru, Xi will inaugurate the $3.5 billion Chancay port with his Peruvian counterpart Dina Boluarte on Thursday. Situated 80 kilometers north of the Peruvian capital Lima, the port has a maximum depth of 17.8 meters and is expected to become a major trading hub between Latin America and China. “The port will become the largest deep-water port in South America and it will drastically reduce the time needed to ship products from Peru to China,” Leland Lazarus, associate director of national security at Florida International University, told VOA in a video interview. China’s state-run Cosco Shipping Corporation has a majority 60% stake in the port and a 30-year concession to operate the terminal. According to China’s official data, the port can handle up to one million containers and 160,000 vehicles in the first year of operation.  The port is among 17 ports globally where China holds a majority stake, according to the Council on Foreign Relations and is one of more than 100 port projects built globally under China’s flagship Belt and Road Initiative. The port is expected to become a major hub for exporting critical commodities such as lithium, copper, iron and soybeans to China more efficiently. Latin American countries including Peru, Chile, Brazil, Colombia, and Ecuador, which had a combined export of $135 billion to China in 2023, could all benefit from the launch of the Chancay Port.  “There is a huge gap in infrastructure development in Global South countries and Western powers are not active in helping [to] fill the gap. [As a result,] China’s investments in such large infrastructure projects are welcomed by host countries,” Zhu at Bucknell University told VOA in a written response. While Latin American countries will likely welcome the inauguration of the Chancay Port, the U.S. has warned about the potential for the port to be used for military purposes by China. That Washington claims could threaten its interests in Latin America.  “It could be used as a dual-use facility, it’s a deepwater port,” said Laura Richardson, the outgoing chief of the U.S. Southern Command told the Financial Times in a recent interview, adding that the Chinese navy could use the port in a scenario that, she said, fits “Beijing’s playbook.” Some experts say it’s difficult for China to deploy its naval vessels to Latin America in the near future and that Peru is unlikely to let Beijing militarize the Chancay port. “Currently, the Chinese navy is not capable of projecting its power across the Pacific, and since Peru still needs to maintain its relationship with the U.S., Peruvian authorities won’t allow the port to be militarized,” Kung Kwo-Wei, an expert of Latin American affairs at Tamkang University in Taiwan, told VOA by phone. However, Lazarus told VOA that Beijing’s activities in other ports around the world suggest it could still use the Chancay port for military purposes in the future. “When looking at Chinese behaviors [at other ports around the world], such as the Port of Bata in Equatorial Guinea and the Ream Naval Base in Cambodia, Chinese state-owned enterprises would promise to expand the ports for commercial purposes, yet there have been allegations that there’s been construction for what looks like military purposes on these areas,” said Lazarus. In addition to the Chancay Port, Peruvian Foreign Minister Elmer Schialer told Reuters news agency in an exclusive interview that Beijing and Lima plan to sign around 30 agreements, including an updated free trade agreement, during Xi’s visit.  Kung in Taiwan said these developments show that China’s investment in Latin America is now focusing on logistical infrastructure and access to minerals from Latin America. “China relies heavily on ports and logistical infrastructure to ensure it can export and import commodities at a steady pace, and as Beijing continues to expand its renewable energy industries, its appetite for minerals from Latin America will also grow,” Kung told VOA. As the U.S. could possibly adopt a more isolationist foreign policy approach during Trump’s second term, Lazarus said Xi will use the upcoming APEC and G20 summits to amplify the message that China is a more consistent global power than the U.S. “While the U.S. is going to potentially look inward with another Trump administration, [the summits] are Xi’s big opportunities to show that China is playing a much more global role,” he told VOA. However, some experts say it remains unclear whether China will achieve its intended goals. “Beijing will double down on the image of being the leader of the Global South and some countries will be attracted by that message,” said Ian Chong, a political scientist at the National University of Singapore. “But others who are more clear-eyed and who have followed developments from the Belt and Road Initiative and other Chinese projects will recognize that China is just another great power,” he told VOA in a phone interview. 




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Mexican lawmakers reelect human rights agency leader criticized for not addressing abuses

mexico city — Legislators from Mexico's ruling party reelected the head of the National Human Rights Commission on Wednesday despite widespread opposition and her failure to call out the government for abuses.  The reelection of Rosario Piedra Ibarra in a party-line Senate vote appeared to be another example of the ruling Morena party's attempts to weaken independent oversight bodies. Morena has proposed eliminating a host of other oversight, transparency and freedom-of-information agencies, claiming they cost too much to run.  Mexico's civic and nonprofit rights groups have been almost unanimous in their criticism of Piedra's reelection.  "This is an undeserved prize for a career marked by inaction, the loss of independence and the weakening of the institution," the Miguel Agustin Pro Juarez human rights center wrote on social media.  Piedra is a committed supporter of former President Andres Manuel Lopez Obrador, who left office on September 30. She once affirmed that none of the deaths caused by the armed forces under his administration were illegal or unjustified, and she shared the former president's delight in attacking and criticizing other independent human rights groups.  Commission issues few recommendations Since her first election in 2019, Piedra has done little to investigate allegations of massacres or extrajudicial killings by soldiers and members of the militarized National Guard, to whom Lopez Obrador gave sweeping powers.  Despite receiving over 1,800 citizen complaints against the armed forces between 2020 and 2023, her commission issued only 39 recommendations, and most of the few military cases her commission did follow up on involved abuses committed under previous administrations.  The rights commission has the power to make non-binding recommendations to government agencies. If they do not agree to follow the recommendations, they are at least required by law to explain why.  Piedra has almost exclusively focused the commission's work on issuing recommendations in cases where people have not received proper health care at government-run hospitals. Those recommendations accomplish little, because they don't address the underlying problem of underfunded, poorly equipped hospitals forced to handle too many patients.  At times Piedra acted as if human rights violations no longer existed under Lopez Obrador. In 2019, she expressed disbelief when asked about the killing of journalists, despite the fact that almost a dozen were killed in Lopez Obrador's first year in office.  "Are they killing journalists?" she said with an expression of disbelief.  'Her actions appear to support impunity ' Piedra comes from a well-known activist family: Her mother founded one of Mexico's first groups to demand answers for families whose relatives had been abducted and disappeared by the government in the 1960s and '70s. But even her mother's group, the Eureka Committee, did not support Piedra's reelection.  "Her actions appear to support impunity for the perpetrators of governmental terrorism, and the government's line of obedience and forgetting" rights abuses, the committee wrote in a statement.  Piedra broke with two important traditions: she was a member of the ruling party up until she was elected to her first term in 2019. The job has usually gone to nonpartisan human rights experts.  And she has openly endorsed and supported government policies and actions. Previous heads of the commission had a more critical relationship with the government.  Piedra also failed to make the final cut for candidates for the post this year in a congressional examination of their qualifications, but was put on the ballot anyway.  That's important because similar evaluation committees will decide who gets on the ballot in judicial reforms that make federal judges stand for election next year. Activists worry that the same kind of favoritism will come into play in the election of judges.  "This decision comes after a selection process in which she (Piedra) wasn't found to be the most qualified," a coalition of rights groups said in a statement. "That reveals the political, partisan considerations that put her onto the ballot."  She also apparently falsified a letter of recommendation; a bishop and human rights activist said a letter she presented to support her reelection had not been signed by him.  Piedra will serve under new President Claudia Sheinbaum, another devoted follower of Lopez Obrador, who took office October 1. On Sheinbaum's first day in office, the army killed six migrants near the Guatemalan border; 10 days later, soldiers and National Guard killed three bystanders in the northern border city of Nuevo Laredo while chasing suspects.  Sheinbaum's third week in office was capped by the killing of a crusading Catholic priest who had been threatened by gangs, and a lopsided encounter in northern Sinaloa state in which soldiers killed 19 drug cartel suspects, but suffered not a scratch themselves. That awakened memories of past human rights abuses, like a 2014 incident in which soldiers killed about a dozen cartel suspects after they had surrendered.  The purportedly leftist government has been quick to criticize human rights groups and activists who expose abuses.  In June, an outspoken volunteer advocate for missing people found an apparent body dumping ground with human remains in Mexico City, embarrassing ruling party officials who had done little to look for such clandestine grave sites. City prosecutors lashed out at her, claiming "the chain of custody" of the evidence had been manipulated, which could lead to charges. 




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John Krasinski being named Sexiest Man Alive sparks surprising fan theory

John Krasinski reportedly could not believe being named the Sexiest Man AliveJohn Krasinski as 2024’s Sexiest Man Alive invoked a mixed reaction from social media, pleasing some fans while leaving the others disappointed. Meanwhile some social media users have found an interesting link...




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Department of Government Efficiency social media channel goes live on X for 'maximum transparency'

The Department of Government Efficiency (DOGE) went live on X Wednesday, giving the public a way to question and see how tax dollars are being spent.



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  • fox-news/tech/companies/twitter
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GOP Rep. Michael McCaul 'briefly detained' by police at airport for 'appearing intoxicated'

GOP Rep. Michael McCaul of Texas said he was detained by police at Dulles International Airport after he became disoriented from mixing Ambien with alcohol.



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Canada shares U.S. concern over Mexico’s trade practices, Freeland says

Mexico has been criticized for being a backdoor for cheap Chinese imports to the U.S. market




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3 men arrested in B.C. have ties to Mexican drug cartels, RCMP say

Mounties say they've arrested three men in Surrey, B.C., believed to be tied to a transnational organized crime group connected to Mexican drug cartels, while four others suspected of trafficking large quantities of drugs were arrested in Burnaby, B.C. 



  • News/Canada/British Columbia

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Mysterious Ultra-Massive Galaxies Spotted in Early Universe

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have discovered three ultra-massive galaxies -- nearly as massive as our own Milky Way Galaxy -- already in place within the first billion years after the Big Bang.

The post Mysterious Ultra-Massive Galaxies Spotted in Early Universe appeared first on Sci.News: Breaking Science News.





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Biden and Xi will meet on Saturday, the 3rd and likely final time during Biden's term

President Biden plans to tell China's Xi Jinping that communication channels between the two governments need to remain open — no matter who is in the White House.




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Deputy PM Freeland says she shares American trade concerns about Mexico, China

Deputy Prime Minister and Finance Minister Chrystia Freeland says she shares Washington's concerns about whether Mexico is "aligned" with Canada and the U.S. on trade policy — specifically when it comes to China.




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Biden and Xi to meet in Peru, US officials say

WASHINGTON — US President Joe Biden will meet Chinese counterpart Xi Jinping for likely the final time on Saturday (Nov 16), senior administration officials said, as Beijing prepares for a potentially more confrontational period with Washington under Donald Trump. The two leaders are expected to hold talks spanning a range of global hot spots, including heightened tensions between Washington and Beijing, on the sidelines of the Asia-Pacific Economic Cooperation forum in Lima, Peru, US national security adviser Jake Sullivan told reporters. He did not confirm the date of the meeting. It will be Biden and Xi's first known interaction since an April phone call. The two leaders have tried to keep tensions at bay over issues ranging from Taiwan to the South China Sea and Russia, and American demands for more Chinese help to stem the flow of the ingredients for fentanyl, the leading cause of US drug overdoses. Biden will raise concerns over a Chinese-linked group that recently hacked into private telecommunications of prominent US officials, Sullivan said.




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Using phone? Jaywalker hit and sent flying by taxi in Orchard

A woman was sent flying after she was hit by a car on Wednesday (Nov 13) morning. The incident occurred at the junction of Orchard Road and Handy Road. In a video posted to the SG Kaypoh Facebook group, the woman is seen crossing the road while the traffic light was not in her favour.   She appears to be looking down at her phone. The driver involved in the accident did not notice her till it was too late and collided with her head-on. In the video, the woman is sent flying and lands several metres in front of the car upon impact. She manages to sit up after landing, and looks stunned from the impact.   The driver and his passenger also rush out of the vehicle to assist.  Speaking to AsiaOne, the Singapore Civil Defence Force said that the female pedestrian was conveyed conscious to Tan Tock Seng Hospital. When contacted, the police said they were alerted to an accident involving a taxi and a pedestrian at the junction of Orchard Road and Handy Road on Nov 13 at about 3.15am.




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Mexican city's security chief held over mayor's beheading

The mayor of Chilpancingo, Alejandro Arcos, was murdered just days after taking office last month.




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Can GABA and L-Theanine Supplements Together Help With Stress and Anxiety?

Highlights: GABA and L-theanine are popular supplements for stress relief L-theanine may help reduce stress, whi




xi

Growing Threat of Nitrous Oxide to Public Health and Climate

Rising Nitrous Oxide emissions pose serious risks to public health and climate, contributing to respiratory issues and global warming. Immediate action is crucial.




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Can GABA and L-Theanine Supplements Together Help With Stress and Anxiety?

GABA and L-theanine are often used to reduce stress. While promising, there's limited research on their combined use, making healthcare consultation essential.




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Marketing masterclass: How to maximize your hotel’s seasonal digital marketing

Q4 is a crucial time for hotels, and we’re here to help you capture more business this holiday season. Tune in for an expert-led webinar to explore the latest trends and strategies for boosting bookings and transitioning smoothly into the New Year.




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Shocking: 86% diabetics in India facing anxiety, depression; women more affected: Report

More than 4 in 5 Indians, or 86 per cent of Indians living with diabetes have experienced anxiety, depression, or another mental health condition as a result of their diabetes, according to a report, ahead of World Diabetes Day.




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Actor John Krasinski named 'Sexiest Man Alive 2024' by People magazine

Krasinski's win adds him to an esteemed group of past honourees like George Clooney, Brad Pitt, Idris Elba, and Michael B. Jordan.




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Synthesis of multisubstituted carbazol-4-amines from tetrahydrocarbazol-4-one oximes

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00386A, Research Article
Jiahua Wang, Dandan Gao, Aanuoluwapo O. Oyejobi, Na Ji, Xiang-Ying Tang, Long Wang
A sequential synthetic method toward 1,3-disubstituted carbazol-4-amines is reported and an interesting C–S metathesis process is disclosed.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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DNA-compatible functional group transformations via K2RuO4-mediated oxidation

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00203B, Research Article
Pengyang He, Guixian Zhao, Mengping Zhu, Yangfeng Li, Gong Zhang, Yizhou Li
K2RuO4-mediated oxidation offers a DNA-compatible method for functional group transformations, enabling alcohol-to-carboxylic acid and amine-to-nitrile conversions valuable for DNA-encoded library synthesis.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Neighboring group-directed asymmetric [2 + 2 + 2] cycloaddition to access C–N axially chiral indoles

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00042K, Research Article
Xuan Zhang, Qi Teng, Yanru Ren, Baitong Wei, Chen-Ho Tung, Zhenghu Xu
A Rh-catalyzed neighboring group-directed asymmetric [2 + 2 + 2] cycloaddition of 1,6-diynes and ynamides to generate C–N axially chiral indole derivatives has been developed.
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Review of application of the I2 and dimethyl sulfoxide combined reagent system to aryl methyl ketones for diverse transformations

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00396A, Review Article
Dong-Sheng Yang, Xiang-Long Chen, An-Xin Wu
The synthesis of small molecules and complex scaffolds is one of the most important topics in organic synthesis.
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Vaska's complex–PMHS combination enabled mild and chemoselective reduction of sulfoxides to sulfides with low catalyst loading

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00312H, Research Article
Fang-Fang Xu, Zhong-Lei Ruan, Pei-Qiang Huang
We report a highly efficient, versatile, and chemoselective method for the catalytic reduction of sulfoxides to sulfides under mild conditions.
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The content of this RSS Feed (c) The Royal Society of Chemistry




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Visible-light-mediated catalyst-free synthesis of trifluoromethyl(spiro)-epoxides bearing contiguous quaternary centers

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00184B, Research Article
Jingchuan Lin, Yu Zhang, Jinxin Wang, Xinyu Han, Shenglan Zhu, Tong Li, Yanping Zhu, Wei-Dong Zhang
Herein, we describe a non-covalent complex-mediated epoxidation strategy that can yield highly selective central spiro-epoxides by irradiation with visible light without the need for catalyst addition.
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Synthesis of benzothiophenes via sulfonium-[3,3]-rearrangement of aryl sulfoxides with allenenitriles

Org. Chem. Front., 2024, 11,2208-2214
DOI: 10.1039/D4QO00121D, Research Article
Lei Zhang, Kun Wan, Huanhuan Wang, Mengyao Wang, Ao Cui, Xin Huang, Bo Peng
A facile synthesis of benzothiophenes from readily available aryl sulfoxides and allenenitriles has been established through sulfonium-rearrangement triggered cyclization.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Deoxygenation of N-heterocyclic N-oxides using isopropanol as a recyclable reductant

Org. Chem. Front., 2024, 11,2249-2268
DOI: 10.1039/D4QO00208C, Research Article
Ho Kyeong Ryu, Yun Do Song, Jun Hee Lee
An organic photoredox-based recyclable strategy that facilitates the chemoselective deoxygenation of various functionalised N-heterocyclic N-oxides is presented.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A formal (3 + 2) annulation–Cannizzaro cascade of bifunctional peroxides for the synthesis of dihydrofurans

Org. Chem. Front., 2024, 11,2215-2219
DOI: 10.1039/D4QO00215F, Research Article
Yiwei Chen, Min Gao, Qianlan Xu, Jiumeng Zhang, Lin Hu
Tunable tandem processes of bifunctional peroxides allow the divergent construction of functionalized dihydrofurans and epoxides by simply changing the basic conditions.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Prins cyclization of 1,3-dioxinone: synthesis of 11-epi-badkhysin

Org. Chem. Front., 2024, 11,2332-2338
DOI: 10.1039/D4QO00162A, Research Article
Xiaoliang Xu, Ping Hua, Yiren Xu, Baoqing He, Jingfeng Zhao, Liang Li, Wen Chen, Hongbin Zhang
The asymmetric synthesis of highly functional 11-epi-badkhysin has been accomplished using a structure-unit based approach.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Copper-catalyzed oxidative sulfenylation and alkylation of indolin-2-ones for direct construction of sulfur-substituted quaternary carbons

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00491D, Research Article
Yun-Hao Zhang, Yi-Nuo Wang, Zi-Yu Liu, Si-Han Zheng, Guang-Lin Li, Dexin Feng, Da-Zhen Xu
A rapid and green one-pot access to S-substituted quaternary carbon centers from commercially available feedstock chemicals has been established, providing complex molecules with high chemoselectivity by the use of air as the terminal oxidant.
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Efficient Synthesis of Benzophosphole Oxides by Ag-Promoted Radical Cycloisomerization

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00552J, Research Article
Open Access
Liyao Ma, Sonia Mallet-Ladeira, Julien MONOT, Blanca Maria MARTIN VACA, Didier Bourissou
Cycloisomerization reactions involving C–P bond formation have been overlooked to prepare P-heterocycles. We discovered here a simple, efficient and versatile route to benzophosphole oxides by reacting ortho-alkynyl secondary phosphine oxides...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Regioselective Oxidative Cleavage of Conjugated Dienes to Access α,β–Unsaturated Nitriles

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D3QO02101G, Research Article
Yuqing Fu, Yijia Leng, Haotong Bai, Jiaxi Xu, Ning Chen
A highly regioselective oxidative cleavage method has been developed for the synthesis of α,β-unsaturated nitriles from unsymmetric conjugated dienes. This transformation selectively cleaved the terminal C=C double bond, providing moderate...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Synthesis of oxindole fused 1,3-oxazepanes via hydride transfer initiated ring expansion of pyrrolidine

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00474D, Research Article
Peng He, Zongkang Wang, Qiongwen Kang, Nana Fei, Chengyu Wang, Yanzhong Li
An efficient B(C6F5)3 catalyzed protocol for the synthesis of oxindole fused 1,3-oxazepanes from pyrrolidine substituted aryl alkynones has been developed.
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NHC-Catalyzed Stereoselective Synthesis of Spirooxindole Lactones by in situ Generated Oxindole-embedded o-Quinone Methides and Aldehydes

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00347K, Research Article
Zhengqiang Cao, Fang Hu, Yunpeng Chu, Jiaxue Pei, Xin-Ping Hui
A novel N-heterocyclic carbene-catalyzed asymmetric [4 + 2] annulation of in situ generated oxindole-embedded o-quinone methides with aldehydes has been developed for the assembly of complicated spirooxindoles. The methodology provides...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Diverting the Mannich reaction to access 2,2-disubstituted indolin-3-ones by merging 1,2-aryl migration and copper-catalyzed aerobic oxidation

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00481G, Research Article
Jia-Chen Xiang, Yu-Die Wang, Peng Yuan, Hui-Min Zhu, Tong Lei, An-Xin Wu, Zhixin Liao
Three typical substrates for the Mannich reaction, p-anisidine, aldehyde, and a nucleophile, did not afford the predictable linear Mannich base under an aerobic copper oxidation condition, but rendering a 2,2-disubstituted indolin-3-one product.
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Thiourea as a precatalyst for the electron donor–acceptor complex photoactivation platform of oxime esters

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00424H, Research Article
Haichen Mao, Yuting Zhang, Hengrong Cao, Qianqian Shi, Yu Lan, Junbiao Chang, Bo Zhu
A novel electron donor–acceptor (EDA) complex catalysis strategy has been developed using thiourea as a precatalyst under blue LED irradiation. Using 2–5 mol% of thiourea, various nitrogen-containing compounds were successfully synthesized.
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UN report warns nitrous oxide emissions impact public health




xi

Non-classical electrostriction in calcium-doped cerium oxide ceramics

J. Mater. Chem. A, 2024, 12,9173-9183
DOI: 10.1039/D3TA07512E, Paper
Ahsanul Kabir, Victor Buratto Tinti, Simone Santucci, Maxim Varenik, Samuel Griffiths, Sebastian Molin, Igor Lubomirsky, Vincenzo Esposito
Oxygen-defective metal oxides, e.g., acceptor-doped CeO2, demonstrate exceptionally large electrostrictive responses compared to state-of-the-art electromechanically active ceramic materials.
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