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The reactivity of alkenyl boron reagents in catalytic reactions: recent advances and perspectives

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01703J, Review Article
Ya-Li Feng, Bo-Wen Zhang, Youzhi Xu, Shengnan Jin, Daniele Mazzarella, Zhong-Yan Cao
Recent advances focusing on novel reactivity of alkenyl boron reagents in polar or radical pathways within catalytic reactions by employing transition metal catalysis, organocatalysis have been summarized and discussed.
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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Visible-light excited copper activating unactivated alkyl iodides for radical addition/cyclization to access oxindole derivatives

Org. Chem. Front., 2024, 11,6380-6384
DOI: 10.1039/D4QO01329H, Research Article
Hang Luo, Fangnian Yu, Luqing Lin
The photocopper catalyst facilitates halogen atom transfer to give unactivated alkyl radicals, which is critical for achieving radical cyclization in the absence of an exogenous photocatalyst.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Phosphine-controlled divergent reactions of MBH-carbonates with azaheptafulvenes: access to o-anilinyl diene and benzazepine derivatives

Org. Chem. Front., 2024, 11,6418-6425
DOI: 10.1039/D4QO01298D, Research Article
Wei Hao, Yiwen Zhang, Xiao Han, Zhen Wang, Weijun Yao
A phosphine controlled divergent cascade reaction of MBH-carbonates with azaheptafulvenes was disclosed. PPh3 provided o-aminophenyl diene while PCy3 offered benzazepine derivative through formal [8 + 3] annulation/ring contraction cascade.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Carbonate-assisted selectively deoxygenative cross-coupling reaction between aryl and aliphatic aldehydes: a straightforward route to access α-alkylated aryl ketones

Org. Chem. Front., 2024, 11,6510-6517
DOI: 10.1039/D4QO01517G, Research Article
Yu Sun, Yi Wang, Zhijun Zuo
A novel reductive cross-coupling reaction of two different aldehydes for rapidly assembling α-alkylated aryl ketones has been developed. The inexpensive carbonate served not only as a base but also as an efficient electron donor.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Shining light on sulfonium salts and sulfur ylides: recent advances in alkylation under photoredox catalysis

Org. Chem. Front., 2024, 11,6573-6588
DOI: 10.1039/D4QO01644K, Review Article
Zhe Jin, Tingwei Yu, Hui Wang, Penghao Jia, You Huang
Recent advancements in photoredox alkylation with sulfur ylides, sulfonium salts and related analogues are summarized in this review.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Recent advances in asymmetric synthesis of chiral benzoheterocycles via Earth-abundant metal catalysis

Org. Chem. Front., 2024, 11,6534-6557
DOI: 10.1039/D4QO01686F, Review Article
Jinhui Cai, Wenting Zhang, Usman Muhammad, Weishuang Li, Yanjun Xie
This review mainly focus on the assembly of chiral benzoheterocycles, such as dihydrobenzofurans, chromans, indolines, tetrahydroquinolines, etc., via Earth-abundant metal-catalyzed (Cu, Fe, Ni, and Ti) asymmetric synthesis in the last few decades.
The content of this RSS Feed (c) The Royal Society of Chemistry




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LiTMP-LiBr complex-induced lateral lithiation and cross ester condensation: direct access to isocoumarins from 2-methoxy o-toluate esters

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01678E, Research Article
Open Access
Mintu Rehman, Sajib Daimary, Rasajna Madhusudhana, Rajendar Goreti
LiTMP-LiBr complex promotes cross-ester coupling of 2-methoxy o-toluate esters to directly yield isocoumarin is demonstrated. Method applied to many natural product precursors including synthesis of (+)- and (−)-lunatinins.
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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Copper-catalyzed alkynyldisulfuration of arynes: an efficient access to unsymmetrical disulfides

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO01844C, Research Article
Shuai Huang, Yumin Zhang, Yuekai Li, Chen-Ho Tung, Xin Li, Zhenghu Xu
This article investigates a copper-catalyzed alkynyl disulfuration reaction of aryne formed in situ to synthesize o‑alkynyl aryl disulfides. The transformation proceeds through the in situ generation of aryne, followed by...
The content of this RSS Feed (c) The Royal Society of Chemistry




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DABSO-Mediated Pummerer Reaction Enables One-Pot Synthesis of Pyrroloquinolines for Accessing Marinoquinolines: Mechanistic, Photophysical and Pharmacological Investigations

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO01512F, Research Article
Rahimuddin Khan, Dipun Kumar Penthi, Aditi Chatterjee, Chandrakanta Sahoo, Shanti Gopal Patra, Viswanathan Arun Nagaraj, Tabrez Khan
A new one-pot acid- and exogenous oxidant-free synthesis of pyrrolo[2,3-c]quinolines has been developed. The strategy involves chemoselective reduction of the 3-(2-nitrophenyl)-1H-pyrroles (pyrrolnitrin derivatives) and subsequent DABSO-facilitated Pummerer reaction in the...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Recent advances in carbon atom addition for ring-expanding single-atom skeletal editing

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01806K, Review Article
Ting Yuan, Lei Shi
This review focuses on recent advances in carbon atom addition for ring-expanding single-atom skeletal editing.
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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Hemilabile P,N-Ligand-Assisted Gold Catalyzed Hiyama Allylation to Access Allylarenes and 1,4-Dienes Derivatives

Org. Chem. Front., 2025, Accepted Manuscript
DOI: 10.1039/D4QO01879F, Research Article
Yuanhao He, Wanping Ma, Yu Zhong, Yanfei Hu, Mingou Li, Fen Zhao, Zhonghua Xia, Baomin Fan
Oxidant-free gold-catalyzed reactions are emerging as a novel synthetic tool for organic transformations. Here in, we reported a hemilabile P,N-ligand-assisted gold-catalyzed Hiyama cross coupling reaction of aryl and alkenyl iodides...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Mechanistic insights into rhodium-catalyzed C−H activation and annulation using vinyl acetate to access cinnolines and cinnolin-4(1H)-ones

Org. Chem. Front., 2025, Accepted Manuscript
DOI: 10.1039/D4QO01734J, Research Article
Yuqin Wang, Yiling Zeng, Ya-Nan Tian, Zheng Liu, Jinhua Wang, Shuyou Chen, Shiqing Li
Transition metal-catalyzed C−H activation and annulation involving vinyl acetate remains a significant challenge, and the mechanistic process following vinyl insertion is ambiguous. Herein, we report the Rh(III)-catalyzed two-fold C−H activation...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Telangana pharmaceutical industries logged 97 major fire accidents in past decade: Fire Services Director-General Y. Nagi Reddy

The new government would like to decentralise and set up pharma villages, in 10 clusters, Special Chief Secretary Jayesh Ranjan said




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CM Revanth Reddy announces resolve to complete pending projects of Palamuru district

Criticises opposition parties for trying to create obstacles in district development  




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Wriddhiman Saha announces retirement from cricket after this year's Ranji Trophy

Veteran cricketer Wriddhiman Saha announces retirement, last season in Ranji Trophy, ending a cherished journey in cricket




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Ranji Trophy | Powerful Tamil Nadu holds all the aces against Assam

Sai Kishore’s return boosts the visiting team; Ghadigaonkar & Co. will have to rack up big scores to provide meaningful competition




ces

Defeat negative marking in civil services exam

Here is a concrete strategy to approach the exam.




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Headstart to success

You don’t have to wait till Class XI to start preparing for IIT-JEE. Here’s why.




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Civil services aspirants at sea




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Legal process outsourcing as a career

LPO offers diverse avenues for law graduates with strong communication and analytical skills.




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Civil services club in colleges?

Want to become a bureaucrat? Here’s a lowdown on all that you need to know.




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‘Anyone can crack civil services exam’

“I prefer the term ‘civil servant’ to the term ‘bureaucrat’ because it clearly spells out that the ‘master’ is the common man.’’




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Acing the civil services exam

Proper planning and effective time management can help you crack the exam in the first attempt. Some tips.




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History resurfaces

City archaeologists and history students discover fragments of burial urns, ring stands belonging to the megalithic period in Sulapuram Village near Madurai



  • History & Culture

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A comparative study on the thermal runaway process mechanism of a pouch cell based on Li-rich layered oxide cathodes with different activation degrees

RSC Adv., 2024, 14,35074-35080
DOI: 10.1039/D4RA06355D, Paper
Open Access
Wei Quan, Jinghao Liu, Jinhong Luo, Hangfan Dong, Zhimin Ren, Guohua Li, Xiaopeng Qi, Zilong Su, Jiantao Wang
Li-rich layered oxide (LLO) is regarded as one of the most promising candidates for the next-generation batteries.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Comparing diverse extraction methodologies to infer the performance of 1,8-cineole extraction from Eucalyptus cinerea: process optimization, kinetics, and interaction mechanisms

RSC Adv., 2024, 14,35529-35552
DOI: 10.1039/D4RA06050D, Paper
Open Access
Divya Baskaran, Madhumitha Sathiamoorthy, Ramasamy Govindarasu, Hun-Soo Byun
Different extraction techniques were used to extract 1,8-cineole from Eucalyptus cinerea leaves, and their performance efficiency was evaluated through optimization and kinetic studies.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Chronological effects of oxygen on the structural transformations of polyacrylonitrile fibers during the rapid thermal stabilization process

RSC Adv., 2024, 14,35560-35567
DOI: 10.1039/D4RA06327A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Shiyang Li, Liang Chen, Jie Liu, Yixin Li, Jian Tang, Rongchao Jiang, Xiaoxu Wang
The effects of oxygen on the structure changes of PAN fibers during the rapid thermal stabilization are chronological, including thermal-driven dehydrogenation, oxidation and cyclization in the shorter, intermediate and longer periods, respectively.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Advances in quinoxaline derivatives: synthetic routes and antiviral efficacy against respiratory pathogens

RSC Adv., 2024, 14,35400-35423
DOI: 10.1039/D4RA04292A, Review Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Fateme Dehnavi, Malihe Akhavan, Ahmadreza Bekhradnia
3D lung visualization showing COVID-19 infection areas alongside respiratory pathogens. The antiviral drug structure and comparison of healthy vs. infected lungs demonstrate how the drug could restore lung health.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Reaction of unsymmetrical α-bromo-1,3-diketones with N-substituted thioureas: regioselective access to 2-(N-arylamino)-5-acyl-4-methylthiazoles and/or rearranged 2-(N-acylimino)-3-N-aryl-4-methylthiazoles

RSC Adv., 2024, 14,35585-35600
DOI: 10.1039/D4RA05436A, Paper
Open Access
Ranjana Aggarwal, Shilpa Sharma, Naman Jain, Dionisia Sanz, Rosa M. Claramunt, Patricia Delgado, M. Carmen Torralba
Hantzsch's [3 + 2] cyclic condensation of α-bromo-1,3-diketones with N-substituted thioureas.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Distance-based paper microfluidic devices for rapid visual quantification of heavy metals in herbal supplements and cosmetics

RSC Adv., 2024, 14,36142-36151
DOI: 10.1039/D4RA05358C, Paper
Open Access
Yanawut Manmana, Mirek Macka, Nantana Nuchtavorn
The ion exchange paper shows strongly retain anionic metallochromic reagents, enabling clear endpoint detection on DμPADs. This method allows rapid heavy metal screening in real samples, with the predeposited reagents stable for at least 2 months.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Developing Ni0.5Zn0.5Fe2O4 ferrite with controlled particle size and morphology through optimized processing conditions of low energy solid state reaction

RSC Adv., 2024, 14,36264-36272
DOI: 10.1039/D4RA07076C, Paper
Open Access
Sarah Baayyad, Fatima-Zahra Semlali, El Kébir Hlil, Tarik Mahfoud, Hassan El Moussaoui, Mounir El Achaby
Soft magnetic materials, like Ni0.5Zn0.5Fe2O4, require high temperatures and regulated environments for their manufacture and processing, which can be highly energy intensive.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Surat’s diamond factories lose sparkle as global recession hits sector

Since 95% of polished diamonds are exported, global factors always affect the sale of the precious stones, said experts from Surat




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1998 murder case of ex-Bihar Minister: Supreme Court sentences two persons to life imprisonment

A bench of Justices Sanjiv Khanna, Sanjay Kumar and R. Mahadevan partially set aside the Patna High Court verdict acquitting all the accused and asked convicts Mantu Tiwari and ex-MLA Shukla to surrender within 15 days




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Empowerment campaign enhances access of differently-abled persons in Barmer

The initiative has ensured a hassle-free process of obtaining disability certificates and saved the time of differently abled persons to travel all the way to the district headquarters to appear before the Medical Board




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Computing services notes

Computing services notes - from Middle Managers 8/7/08

* All circ problems: aleph, print demons, notices, etc -- anybody/everybody just send a Grover http://www.uflib.ufl.edu/grover ticket. As Systems learns the quantity, frequency, and variety of problems reported, they'll learn how to how to base assignments.

__________________

* New linking service - Serials Solutions 360 Linker - is being tested The "Find it@UF" icon will change slightly (substituting the SFX trademark swirly with an @) and we’ll need to know when to make the switch on all our handouts, web pages, etc.

_________________

* phishing -- everyone remember to never give out any of your passwords to anybody. Not to Systems, not to CIRCA, not to UF. Requests for passwords (especially from email messages) are masquerades for phishing schemes. OK to give your logon, but never your password.

____________________

* Active Directory -- public computers will begin conversion this week. Patrons will use Gatorlink to logon. We may create guest accounts (following procedures) valid for 14 days. Guest accounts cannot be renewed; patrons will have to select a new name (smith1, smith2, etc) every 2 weeks. The Peoplesoft folks have not yet committed to making longer-term, renewable guest accounts. These guest accounts are for computer use only; they do not govern borrowing privileges or remote access. (Patrons can log into to the Library Proxy with their Gatorlink, but it only connects if their Gatorlink account indicates an eligible status.)

*** We currently have 300 courtesy borrowers, and some of them may be eligible for real Gatorlinks (which they can create themselves). They should check with Jim Stevens. In the meantime, it may be easiest to create them a temp guest account on the spot and then (we or patron) contact Jim to see what else can be done. Stay tuned.

*** There are 1800 guest computer use accounts active today. 1800 accounts x every 2 weeks means a lot of work for staff and a lot of grief for patrons. We'll hope to succeed with requesting speedy establishment of longer-term, renewable guest Gatorlink accounts.

*** Small branches with only student assistants on the weekends might send guests to MSL for account creation.

______________

* Active Directory for staff computers -- might happen in mid-Fall. Huge implications for how we all manage our email; some aspects will be time-consuming and deadline-based.

*** Campus email only saves Inbox and Sent email for 30 days. Then it goes into Deleted folder. After 30 days, stuff in Deleted is irretrievable. We all must learn to put any items we want to save into our Retain Permanently folder.

*** Our new email address will be our Gatorlink. If you might be professionally embarrassed by your Gatorlink name, change it soon.

*** We'll all have to notify our discussion lists of our new (gatorlink) address. We should still receive mail directed to uflib, but we won't be able to post to lists that expect us to send from uflib. Feel free to start converting your discussion lists to gatorlink soon.

*** Will said he'll check the group email addresses (sciref, illoan, etc) to see how they can be addressed, managed, and accessed in the campus AD. Stay tuned.

*** We should receive recommendations and procedures on storing and backing up email on library vs. campus servers before we switch. Some gory details available at http://www.mail.ufl.edu/questionsandanswers.shtml and http://www.mail.ufl.edu/managemail.shtml.

_________________

* Office 2007 - if you really want Office 2007 on your staff computer now, please send a request via Grover. If you can wait til about mid-Sept, Systems will be able to push the software over the network rather then sending a staff member to enslave your computer for awhile.




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Manu under dope cloud, Paris chances hit; AFI disappointed; coach Naik too under scrutiny




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Developing world faces multi-billion climate adaptation cash gap: U.N. report

How much money richer countries agree to send to developing countries to help them cope is expected to be central to the COP29 talks




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Combining forces, GSAP & Webflow!

Change can certainly be scary whenever a beloved, independent software library becomes a part of a larger organization. I’m feeling a bit more excitement than concern this time around, though.

If you haven’t heard, GSAP (GreenSock Animation Platform) is teaming


Combining forces, GSAP & Webflow! originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.





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US weather agency lowers chances of La Nina’s emergence

Cuts prospects to 60%, says a weak even may last till March 2025




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Pakistan to hike petrol prices amid economic turmoil

Due to high smuggling and illegal trade, the country continues to suffer, and is dependent on international players for its energy security




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As Trump makes historic return, world braces for new era

People hope Trump will address jobs, economy issues; Trump has vowed to crackdown on illegal immigration




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Raphael Varane, former France and Real Madrid defender, announces retirement

Raphael Varane won the FIFA World Cup with France in 2018 and helped Real Madrid to four Champions League titles and three Spanish league trophies




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EPL: Cole Palmer scores 4 goals in Chelsea win over Brighton; Arsenal leaves it late to beat Leicester

Palmer became the first player to score four goals in the first half of an English Premier League match




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Spain and Barcelona great Andres Iniesta announces retirement after 22-year career

The 40-year-old Iniesta ended a 22-year career that also included two European Championship titles and four Champions League trophies.




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League Cup: Man United routs Leicester days after firing Ten Hag; Tottenham eliminates Manchester City

Liverpool continued its title defense with a 3-2 win over Brighton; Newcastle beat Chelsea 2-0




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Gold ETF gains traction as prices hit new high

The asset under management of gold ETF has gone up 33 per cent to ₹28,530 crore as of February against ₹21,400 crore in February, 2023



  • Gold & Silver

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Jewellery retailers fear a lacklustre Akshaya Tritiya this year due to soaring gold prices

Akshaya Tritiya, which falls on May 10 this year, is considered auspicious to buy gold



  • Gold & Silver

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Dip in gold prices ahead of Akshaya Tritiya to boost demand

Lingering global uncertainty may boost prices again



  • Gold & Silver

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Despite high prices, gold demand picks up this Akshaya Tritiya

The high price for gold has also given a boost to diamond jewellers as customers look for alternatives



  • Gold & Silver