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Electrochemically dehydrogenative C(sp2)–H/S–H cross-coupling: efficient synthesis of ortho-aminophenyl thioglycoside derivatives

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00171K, Research Article
Li-Yan Hu, Li Zhu, Shen-Yuan Zhang, Yu-Xin Guo, Yuan Li, Jie Zhu, Lei Wu
A method has been reported for synthesizing aryl thioglycosides through direct electrocatalytic dehydrogenative C(sp2)–H/S–H cross-coupling.
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Correction: Stereodivergent and enantioselective total syntheses of isochaetominines A–C and four pairs of isochaetominine C enantiomers: a six-step approach

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO90034K, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Zhong-Yi Mao, Hui Geng, Tian-Tian Zhang, Yuan-Ping Ruan, Jian-Liang Ye, Pei-Qiang Huang
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Base-induced azofluoroalkylation of unactivated alkenes via halogen atom transfer

Org. Chem. Front., 2024, 11,2161-2170
DOI: 10.1039/D3QO02114A, Research Article
Jing Zhang, Yanchuang Zhao, Yu-Yi Zhu, Peng Lei, Hanru Liu, Chang-Sheng Wang, Shuya Xing, Yong Liu, Shao-Fei Ni, Thomas Castanheiro, Li-Wen Xu, Xinxin Shao
A base-induced three-components coupling employing unactivated alkenes, fluoroalkyl iodides and diazonium salts under mild reaction conditions has been developed.
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Iron(III)/quinoxaline-derived N,N-ligand catalyzed oxygen transfer reaction of N-vinyl nitrones through selective 4π-electrocyclization and N–O bond cleavage

Org. Chem. Front., 2024, 11,2277-2282
DOI: 10.1039/D3QO01999C, Research Article
Yan-Jiao Lu, Feng-Lan Lu, Jin-Qi Zhang, Chun-Hua Chen, Cui Liang, Xiao-Pan Ma, Dong-Liang Mo
We describe an iron(III)/quinoxaline-derived N,N-ligand promoted O-transfer reaction of N-vinyl nitrones through selective O-4π-electrocyclization and N–O bond cleavage to prepare a variety of 2,5-dihydrooxazoles in good yields.
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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.
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Dynamic kinetic resolution of α-F-β-ketone amides (esters) via Ir/f-diaphos-catalyzed asymmetric hydrogenation

Org. Chem. Front., 2024, 11,2201-2207
DOI: 10.1039/D4QO00125G, Research Article
Pengtao Yang, Dingguo Song, Lingxin Chen, Xianghua Zhao, Yirui Chen, Feiyang Shen, Fei Ling, Weihui Zhong
Highly reactive and highly stereoselective asymmetric hydrogenation of α-F-β-ketone amides (esters) via Ir/f-diaphos-catalyzed dynamic kinetic resolution is reported.
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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.
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Visible light/copper catalysis enabled Heck-like coupling between alkenes and cyclic sulfonium salts via selective C–S bond cleavage

Org. Chem. Front., 2024, 11,2195-2200
DOI: 10.1039/D3QO02009F, Research Article
Xianqin Liu, Xufeng Li, Linyuan Wang, Yongjia Shi, Jian Lv, Daoshan Yang
A Heck-like coupling of cyclic sulfonium salts with alkenes via selective C–S bond cleavage using a copper complex as a photosensitizer through a visible-light-driven redox-neutral process has been developed.
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Electrode-switchable: exploring this new strategy to achieve regiodivergent azidoiodination of alkenes

Org. Chem. Front., 2024, 11,2189-2194
DOI: 10.1039/D3QO01935G, Research Article
Xin-Lei Sun, Chen-Xi Xia, Yue Ren, Yu-Jin Li, Zhi-Qian Cao, Ling-Guo Meng
An “electrode-switchable” organic electrochemistry method for the azidoiodination of alkenes, where the choice of anode dictates the regiodivergent alkene azidoiodination, reveals a novel pathway for controlled regioisomers.
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Selective photochemical synthesis of primary arylamines and symmetric diarylamines via amination of aryl bromides using Ni(NH3)6Cl2 as a nitrogen source and catalyst

Org. Chem. Front., 2024, 11,2313-2318
DOI: 10.1039/D4QO00116H, Research Article
Zhehui Xu, Jianyang Dong, Geyang Song, Fuqiang Kong, Gang Li, Dong Xue
The selective synthesis of primary arylamines and diarylamines via coupling reactions with ammonia as a nitrogen source is still challenging.
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Origin of site-selectivity of hydrogen atom transfer in carbohydrate C–H alkylations via photoredox catalysis

Org. Chem. Front., 2024, 11,2269-2276
DOI: 10.1039/D4QO00073K, Research Article
Yujie Ji, Lingfei Hu, Han Gao, Yan-Bo Wu, Xiangying Lv, Gang Lu
Two major factors, i.e., C–H σ orbital energy and C–H BDE, account for the HAT site-selectivity of carbohydrates with the quinuclidine radical cation.
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Fe-catalyzed B–H and Si–H insertion reactions of gem-dihaloalkanes

Org. Chem. Front., 2024, 11,2241-2248
DOI: 10.1039/D4QO00136B, Research Article
Xinyu Wang, Zhaobin Wang
We present an approach involving Fe-catalyzed B–H and Si–H insertion of gem-dichloroalkanes. In contrast to previous strategies, our method uses gem-dihaloalkanes as non-stabilized carbene precursors and operates through a radical reaction pathway.
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Visible-light Induced [1, 3]-Brook Rearrangements of α-Ketoacylsilanes and Its Subsequent Trapping in a Tandem Annulation with 1, 3, 5-Triazinanes and Azomethine Imines

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00463A, Research Article
Zhong Zhang, Sirui Wu, Yuqiao Zhou, Bao-Lin Li, Siyue Xiao, Xiaohu Zhao, Zhipeng Yu
An unusual visible light-induced [1, 3]-Brook rearrangement of α-ketoacylsilanes for cascade cyclization with 1,3,5-triazinanes and C,N-cyclic azomethine imines has been developed under catalyst-free and mild reaction conditions. The strategy offers...
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Metal-free photoinduced denitrogenative alkylation of vinyl azides with alkyl radicals toward ketones

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00280F, Research Article
Hui Yin, Siqi Jian, Xiujuan Feng, Ming Bao, Xuan Zhang
A metal-free method for the synthesis of ketones via a visible-light induced denitrogenative alkylation of vinyl azides with alkyl radicals is presented.
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Fully atom-economic access to spiro-cyclic skeletons through photoredox-induced hydrogen transfer/Giese addition/dearomative cyclization/protonation cascade

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00317A, Research Article
Guohui Zeng, Hui Luo, Kai Jiang, Jianpeng Cai, Biaolin Yin
Amine-tethered spiro-cyclic skeletons were obtained through photo-induced 100%-atom-economic dearomatization, involving the cleavage of the α-C(sp3)–H of amines. Pentacyclic framework was achieved from pyridinyl ring within two steps.
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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...
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Substituent-controlled divergent cyclization reactions of benzo[c][1,2]dithiol-3-ones and hexahydro-1,3,5-triazines

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00356J, Research Article
Bohao Zhang, Sifan He, Na Dong, Antong Zhu, Haojie Duan, Dunjia Wang, Yao Zhou
An unprecedented metal-free divergent cyclization reaction of benzo[c][1,2]dithiol-3-ones with hexahydro-1,3,5-triazines to assemble six- and eight-membered N-containing heterocycles has been developed.
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Halogen-Bond-Promoted Direct Cross-Coupling of Ethyl 3-bromo-3-alkyl-2,2-difluoropropanoate with Coumarins/Quinolinones

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO00484A, Research Article
Guoliang Pu, Shi-Yuan Song, Jian Yang, Peng Guo, Jia Jia, Peijun Liu, Xuefei Li, Ping Liu, Chun-Yang He
Herein, we developed a practical method for the direct cross-coupling of ethyl 3-bromo-3-alkyl-2,2-difluoropropanoate with coumarins/quinolinones, leveraging a halogen bond as the pivotal non-covalent interaction. Employing this protocol, a library of...
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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...
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Palladium-catalyzed and ligand-controlled divergent cycloadditions of vinylidenecyclopropane-diesters with para-quinone methides enabled by zwitterionic π-propargyl palladium species

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00368C, Research Article
Jia-Hao Shen, Yong-Jie Long, Min Shi, Yin Wei
A palladium-catalyzed and ligand-controlled divergent synthesis of spiro-cyclohexadienones from p-quinone methides and VDCP-diesters was realized via zwitterionic π-propargyl palladium species and the mechanism was clarified by DFT calculations.
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Iridium-catalyzed asymmetric hydrogenation of 5-hydroxypicolinate pyridinium salts under batch and flow: stereodefined access to cis-configurated hydroxypiperidine esters

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO00322E, Research Article
Zhi Yang, Shangxian Luan, Linxi Wan, Jingxi Chen, Xiaofang Wei, Pei Tang, Fen-Er Chen
An iridium-catalyzed asymmetric hydrogenation of 2-esteryl-5-hydroxypyridinium salts is reported, providing chiral cis-5-hydroxypiperidine-2-carboxylates in excellent yields with high levels of enantioselectivities and diastereoselectivities.
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Multifunctional zeolite film enables stable high-voltage operation of LiCoO2 cathode

Energy Environ. Sci., 2024, Accepted Manuscript
DOI: 10.1039/D4EE04370G, Paper
Zezhou Lin, Yiran Ying, Zhihang Xu, Gao Chen, Xi Gong, Zehua Wang, Daqin Guan, Leqi Zhao, Mingyang Yang, Ke Fan, Tiancheng Liu, Hao LI, Honglei Zhang, Huangxu Li, Xi Zhang, Ye Zhu, Zhou-Guang Lu, Zongping Shao, Peiyu Hou, Haitao Huang
Increasing upper cut-off voltage is a useful way for enhancing specific capacity of LiCoO2 (LCO) cathode and the energy density of corresponding lithium-ion batteries (LIBs), while the main challenge is...
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Contribution of an instructional module incorporating PhET simulations to Rwandan students' knowledge of chemical reactions, acids, and bases through social interactions

Chem. Educ. Res. Pract., 2024, Advance Article
DOI: 10.1039/D4RP00105B, Paper
Jean-Baptiste Ndagijimana, Jeannette Musengimana, Henriette Mushimiyimana, Evode Mukama, Olivier Habimana, Paulin Manirakiza, Jean Claude Dushimimana, Jean Pierre Alpha Munyaruhengeri, Samia Khan, Elizabeth Lakin
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Inference with Gemma using Dataflow and vLLM

vLLM's continuous batching and Dataflow's model manager optimizes LLM serving and simplifies the deployment process, delivering a powerful combination for developers to build high-performance LLM inference pipelines more efficiently.




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Germany opens doors to skilled Indians amid global visa cuts

The number of skilled Indian workers in Germany has increased to 1.3 lakh from 23,000 a decade ago




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Let's ensure resounding victory together: Rahul Gandhi to Wayanad voters

‘She [Priyanka Gandhi Vadra] will be more than just a representative – she will be your sister, your daughter, and your advocate’, says Rahul Gandhi in a post on X on bypoll day




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Swami AI chatbot to improve Sabarimala pilgrimage experience




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Decline in Austria's fruit farming linked to climate change




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India is now Russia's second-largest economic partner, says Denis Manturov at trade session




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Germany to hold snap elections on February 23 as coalition crumbles under economic strain




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South Korea to double marine protection zone, address climate change




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South Korea, US, Japan to hold 2nd trilateral Freedom Edge exercise this week




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Carpet fibres used by Australian researchers to make stronger concrete




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Climate change poses growing threat to displaced people: Report




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Modi honoured Marathi by giving it classical language status, Amit Shah




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Gujarat: Consumers can lodge electricity-related complaints online at any time




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Rahul Gandhi experiences Kerala's longest zipline in Wayanad




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Affordable generics will stay relevant amid a premiumisation trend: Bhushan Akshikar

GSK will keep its existing portfolios while entering areas like oncology, said company officials at its centenary celebrations




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Genetic mutation may help people stop craving sugary foods: Study




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[LINK] Responsive images

Since striking out on my own, much of my time’s been dedicated to, well, the book. But I’ve also been fortunate enough to collaborate a bit with Filament Group on one of their projects: namely, a large-scale engagement that requires a responsive approach.

Needless to say, I am having the time of my life.

We’re also learning a lot, too. A lot of discussions about approach and execution have come up, largely because processes for a lot of this stuff don’t exist yet. That will, with a bit of hard work and community discussion, change over time. Still, there has been a lot of brilliant stuff created so far.

Here’s just one example:

The goal of this technique is to deliver optimized, contextual image sizes for responsive layouts that utilize dramatically different image sizes at different resolutions. Ideally, this approach will allow developers to start with mobile-optimized images in their HTML and specify a larger size to be used for users with larger screen resolutions — without requesting both image sizes, and without UA sniffing.

Check out the script, download it, and kick the tires a bit—feedback and tweaks are most welcome.

I realize that there are always going to be philosophical differences around responsive web design. But for me, the solutions-driven discussions are always going to be infinitely more interesting to me than the alternative.




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[LINK] Shaun Inman’s interview on The Verge

I’m doing a disservice to this lovely interview with Shaun Inman—one of my favorite designers and people—by quoting it, but, well:

How do you stay focused?

I’m not sure that I do. I’m kind of all over the place, with my attention split between web apps, iOS games and apps, and Safari extensions…. If I feel my focus waning, I let it wane. Curiosity or that unpleasant feeling of leaving something unfinished usually draws me back to a problem or task before too long.

5 Minutes on The Verge: Shaun Inman

This. Oh, so very this.




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A programming change

I’m sad to say that due to a personal matter, I’ve had to bow out of speaking at this year’s Mobilism conference. You might have seen PPK’s announcement to that effect, and I’m definitely disappointed I’ll miss the event.

Because let’s be honest: my absence isn’t going to do a damned thing to diminish how amazing this conference is going to be. Seriously, look at this lineup. Look at it. Learning from the likes of Scott Jenson, Stephen Hay, Jake Archibald, Lyza Gardner, and Jason Grigsby is too good to be true, and in Amsterdam? And if you haven’t already, watch Jeremy Keith’s epic mobile browser panel from last year, a performance he’s repeating again in May.

Yeah okay I’m officially depressed all over again about missing it.

Seriously though: while I won’t be there, you can be. If you haven’t already, go register for Mobilism 2012 in May. You’ll have one hell of a time.




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Non-equilibrium defect chemistry in oxygen-rich zinc oxide nano-tetrapods synthesized using atmospheric pressure microplasma

J. Mater. Chem. A, 2024, 12,9212-9231
DOI: 10.1039/D3TA06821H, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Dilli babu Padmanaban, Paul Maguire, Davide Mariotti
We demonstrate the synthesis of zinc oxide (ZnO) nanoscale tetrapods (nTPs) using an atmospheric pressure microplasma with a metal wire as a sacrificial electrode.
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Rejuvenating manganese-based rechargeable batteries: fundamentals, status and promise

J. Mater. Chem. A, 2024, 12,8617-8639
DOI: 10.1039/D4TA00466C, Review Article
Weizhai Bao, Hao Shen, Yangyang Zhang, Chengfei Qian, Dingyu Cui, Jingjie Xia, He Liu, Cong Guo, Feng Yu, Jingfa Li, Kaiwen Sun
Energy storage devices with advanced rechargeable batteries are highly demanded by our modern society.
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Mussel-mimetic thermal conductive films with solid–solid phase change and shape-adaptive performance

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA00031E, Paper
Donglei Li, Canxia Ding, Sicong Shen, Jun Wang, Limin Wu, Bo You, Guibao Tao
Inspired by mussel structure, a novel thermally conductive phase change film is made using hot pressing, layer-by-layer stacking, cutting, and splicing. It has high thermal conductivity, low thermal resistance, high latent heat, and electrical insulation, suitable as a thermal interface material.
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Identifying lithium difluoro(oxalate)borate as a multifunctional electrolyte additive to enable high-voltage Li4Ti5O12 lithium-ion batteries

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA00750F, Paper
Ou Ka, Fang Cheng, Lang Wen, Xiaoqu Wang, Ting Wang, Xinyu Zeng, Wen Lu, Liming Dai
Lithium difluoro(oxalate)borate (LiDFOB) is identified as a multifunctional electrolyte additive, stabilizing the electrolyte and protecting the electrodes, to enable the LiNi0.5Mn1.5O4//Li4Ti5O12 battery with an excellent performance at 3.50 V.
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Retraction: Nickel nanoparticles immobilized on three-dimensional nitrogen-doped graphene as a superb catalyst for the generation of hydrogen from the hydrolysis of ammonia borane

J. Mater. Chem. A, 2024, 12,9247-9247
DOI: 10.1039/D4TA90071E, Retraction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Mojtaba Mahyari, Ahmad Shaabani
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Correction: Super-adsorbent hydrogel for removal of methylene blue dye from aqueous solution

J. Mater. Chem. A, 2024, 12,9242-9246
DOI: 10.1039/D4TA90061H, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Xiao-Sai Hu, Rui Liang, Guoxing Sun
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Superhydrophilic covalent organic frameworks accelerate photocatalytic production of hydrogen peroxide through proton channels

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA01785D, Paper
Xiaojuan Bai, Linlong Guo, Tianqi Jia, Zhuofeng Hu
Superhydrophilic COFs with D–A structure accelerate photocatalytic synthesis of H2O2 using water as a proton supply reservoir.
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Aggregation between oligomeric Ir photosensitizers promote efficient and long-lifetime photocatalytic hydrogen evolution

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D3TA07365C, Paper
Yifan Huang, Shihan Liu, Bo Wang, Ying Wang, Yifan Zhang, Pengyang Deng
In this paper, the aggregation effect between oligomeric Ir photosensitizers on photocatalytic hydrogen evolution was first discovered and investigated. Four oligomeric Ir photosensitizers were synthesized by copolymerization of [Ir(ppy)2(dabpy)](PF6) (H1)...
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