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Iridium/palladium dual photocatalysis for oxidative decarboxylative esterification of alcohols using α-keto acids

Org. Chem. Front., 2024, 11,6367-6379
DOI: 10.1039/D4QO01452A, Research Article
Subal Mondal, Soumya Mondal, Debabrata Halder, Siba P. Midya, Ankan Paul, Pradyut Ghosh
Herein, we report an unprecedented oxidative decarboxylative C–O cross-coupling reaction for the esterification of feedstock α-keto carboxylic acids and alcohols under mild conditions.
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Transition-metal-catalyzed regiodivergent sulfonylation of aziridrines for the synthesis of β-amino sulfones

Org. Chem. Front., 2024, 11,6340-6346
DOI: 10.1039/D4QO01376J, Research Article
Qinqiong Zeng, Yujia Gong, Xiaochun He, Xuemei Zhang, Zhong Lian
We developed the first transition-metal-catalyzed, regiodivergent sulfonylation of aziridines, enabling the efficient synthesis of diverse β-amino sulfones under mild conditions with broad substrate compatibility and high regioselectivity.
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Chiral synthetic unprecedented spiro[indoline-2,3'-thiophen]-3-ones via an organocatalytic asymmetric sulfa-Michael/aldol cascade reaction

Org. Chem. Front., 2024, 11,6426-6436
DOI: 10.1039/D4QO01551G, Research Article
Mao Zhang, Xing-Hai Fei, Gui-Ping Yang, Cheng Lin, Wen-Jie Li, Ming-Liang Rao, Meng Zhou, Chong Zhao, Bin He, Yong-Long Zhao
A cinchona-derived squaramide-catalyzed asymmetric sulfa-Michael/aldol cascade reaction of 2-ylideneoxindoles with 1,4-dithiane-2,5-diol was developed to realize the chiral synthesis of spiro[indoline-2,3'-thiophen]-3-ones.
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Well-defined chiral dinuclear copper-catalyzed tandem asymmetric propargylic amination–carboxylative cyclization sequence toward chiral 2-oxazolidinone derivatives

Org. Chem. Front., 2024, 11,6319-6326
DOI: 10.1039/D4QO01368A, Research Article
Yu Lan, Peng Liu, Zekai Fang, Lili Shao, Qilong Cai, Xiaoming Wang
A variety of chiral 2-oxazolidinones was obtained via a dinuclear copper-catalyzed asymmetric propargylic amination–carboxylative cyclization sequence of propargylic esters with alkyl amine hydrochlorides and CO2.
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Design, synthesis and application of bipyridine-N,N'-dioxide catalysts in asymmetric synthesis of chiral cyclopropanes

Org. Chem. Front., 2024, 11,6470-6476
DOI: 10.1039/D4QO01532K, Research Article
Xiaoying Cao, Xue Tian, Minmin Liu, Shi-Wu Li
A novel type of highly efficient chiral C2-symmetric bipyridine-N,N'-dioxide ligands was prepared and successfully applied in the synthesis of optically pure 1,2,3-trisubstituted cyclopropanes.
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Anomalous magnetic behaviour induced by a structural phase transition with anisotropic thermal expansion in a spirodiradical

Org. Chem. Front., 2024, 11,6495-6502
DOI: 10.1039/D4QO01098A, Research Article
Open Access
Takuya Kanetomo, Daigo Matsunaga, Shinichi Ogawa, Masaya Enomoto
A Ge-centred spirodiradical exhibited anomalous magnetic behaviour, influenced by two key structural factors: negative thermal expansion and a structural phase transition.
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Cobalt-catalyzed enantioselective reductive addition of ketimine with cyclopropyl chloride to construct chiral amino esters bearing cyclopropyl fragments

Org. Chem. Front., 2024, 11,6311-6318
DOI: 10.1039/D4QO01474J, Research Article
Jiangtao Hu, Tingting Xia, Xianqing Wu, Hongrui Feng, Jingping Qu, Yifeng Chen
Co-catalyzed asymmetric reductive addition of ketimine with cyclopropyl chloride has been realized to access diverse chiral amino esters bearing cyclopropyl fragments with broad functional group tolerance and excellent enantioselectivities.
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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.
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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.
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A two-step Kinugasa/Conia-ene-type sequential reaction for the asymmetric synthesis of 8-methylene-2,6-diazaspiro[3.4]octane-1,5-diones

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01388C, Research Article
Shanyue Li, Qicai Ma, Bohua Wu, Haowen Ma, Wei Zhou, Qian Cai
A two-step Kinugasa/Conia-ene-type sequential reaction is developed. The process provided a simple and efficient access to chiral 8-methylene-2,6-diazaspiro[3.4]octane-1,5-diones.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Catalytic asymmetric synthesis of chiral sulfilimines via S-C bond formation

Org. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QO01963F, Highlight
Yingying Shi, Shuiyun Zheng, Jiapian Huang, Fu-Sheng He, Min Yang, Jie Wu
As the aza-analogues of sulfoxides, sulfilimines bearing S(IV) stereogenic centers hold tremendous potential in synthetic chemistry and medicinal chemistry. However, the catalytic asymmetric synthesis of chiral sulfilimines are much less...
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Iridium-catalyzed asymmetric cascade allylation/lactonization of methyl salicylates: enantioselective construction of chiral benzodioxepinones

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01771D, Research Article
Bendu Pan, Yunru Wu, Yaqi Zhang, Xiaobo He, Long Jiang, Liqin Qiu
An efficient asymmetric cascade allylation/lactonization of methyl salicylates is achieved. The utilization of chiral-bridged biphenyl phosphoramidite ligand resulted in good results for the construction of a wide range of chiral benzodioxepinones.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Metal–ligand cooperation and synergistic palladium catalysis for the dual ligand system [2,2'-bipyridin]-6(1H)–one/PCy3: milder conditions for the undirected C–H arylation of arenes

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01877J, Research Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Cintya Pinilla, Mario García-Zarza, Ana C. Albéniz
The mixture of Pd(OAc)2 and two ligands segregate into distinct active species working synergistically for the C–H arylation of simple arenes.
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Modular dehydrogenative cross-nucleophile coupling for direct construction of tetrasubstituted carbons

Org. Chem. Front., 2024, Advance Article
DOI: 10.1039/D4QO01641F, Research Article
Peng Wang, Qiang Wang, Meng Wang, Liang Wang, Lubin Xu, Xiong-Li Liu, Fangzhi Hu, Shuai-Shuai Li
An FeCl3-catalyzed cross-dehydrogenative coupling reaction for the construction of various types of C–Y (Y = C, N, O, S) bonds with air as a green oxidant.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Six awarded life imprisonment for trafficking Bangladeshi girls




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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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Traffic diversions in Rachakonda from Friday 8 a.m. for CM’s visit to Yadadri-Bhuvanagiri district




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Telangana Deputy CM seeks proposals for retaining wall to prevent monsoon flooding in Madhira




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Guru Nanak’s 555th birth anniversary celebrations to begin in Hyderabad on November 11




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Lorry ferrying EV cars to Hyderabad catches fire




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Hyderabad-based Raghu Vamsi Group acquires British precision machining firm PMC Group 

The Hyderabad-based MSME, Raghu Vamsi Group, has completed the acquisition of British precision machining firm PMC GGroup, that traces its roots to over 100 years




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Fire engulfs two scrap godowns




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SRIRAM’s IAS launches coaching centre in Hyderabad




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Telangana to repair 9,000 km of roads using advanced technology: Minister Komatireddy




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Three schoolgirls in Telangana tribal school hospitalised after suspected food poisoning, one critical

The girls, aged between 13 and 16, suffered acute gastroenteritis, dehydration, and kidney-related complications




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IND vs NZ third Test: India shoots itself in the foot after dominating most of the day

A combination of reckless batting and decision-making undoes all the good work done by Jadeja and Washington in restricting New Zealand to a modest 235




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IND vs NZ third Test: Ravindra Jadeja rues worst fears having come true

In India’s last series loss at home prior to this, Jadeja – a rookie – had featured in a solitary Test.




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Virat Kohli drops hints of completing 20 years with RCB

Virat Kohli has been playing for RCB ever since IPL's inception in 2008 and is the leading run-scorer in the competition, amassing over 8,000 runs




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IND vs NZ third Test Day 2: Chase won't be easy, we have to bat really well, says Ravichandran Ashwin

What surprised Ashwin is the nature of low bounce, not exactly synonymous with red soil Mumbai surfaces which helps the ball to fly.




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IND vs NZ third Test: India takes a narrow lead, with the Test poised on a knife’s edge

Pant leads the way with an entertaining knock, while Gill is unlucky to miss his hundred; Azaz once again excels with a five-for to keep the Kiwis in the hunt on a turning track turning hostile for the batters with every passing hour




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IND vs NZ third Test: Don’t know how the Pant decision was overturned, says Rohit Sharma

New Zealand captain Tom Latham stated his troupe was confident it had heard two sounds.




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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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Wriddhiman Saha to retire after this season Ranji Trophy




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Can skipper Rohit find inspiration to ‘pull’ his side out of the numbing depths?

India has been in similar situations in the past and found a way to bounce back in style. Nothing will motivate the skipper more than the prospect of a statement-making performance down under, especially with qualification for the final of the World Test Championship now hanging by a slender thread




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Ranji Trophy | Birla’s six-for puts Chandigarh in driving seat against Delhi

The host ends day three at 46 for no loss after dismissing the visitor for 250 in its second innings and needs 157 more runs to clinch an outright victory




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“Indians find Ireland ideal”




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The ABC of first impressions

Just out of college and looking for a job? Some tips on professional etiquette.




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Free coaching classes for TNPSC job aspirants




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Civil services aspirants at sea




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Tirumurai as explained by Periyava




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The songster’s journey to Tiruvaiyaru

Jagdish Koppa’s book on Bangalore Nagarathnamma is a detailed account of the musician and also the life of devadasis in South India




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In the name of Kabir

Bhoomija’s evening of Kabir songs, Shabad Dhun Laagi was poignant




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The spirit of Bengal

Probal Ray Choudhury, professor of culture education, on the tradition of Durga Puja.



  • History & Culture

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Tiruppugazh scholar’s new book



  • History & Culture

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Regulating temple affairs



  • History & Culture

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The cheetah that loved Hyderabadi biryani

Nobility showed off their pet cheetahs and posed for photographs before and after hunts; for the British, they defined India’s exotic wildlife




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The Complete to Planning Your Estate in Virginia: A Step-by-Step Plan to Protect Your Assets, Limit Your Taxes, and Ensure Your Wishes are Fulfilled for Virginia Residents

What happens to your estate after you are gone is very much within your control. Estate planning is not only for the wealthy; it is for everyone. It is simply the process of deciding where your assets are to be distributed after your death. For those people who wish to preserve their assets for designated […]




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The Sex Drive Solution for Women: Dr. Jen’s Power Plan to Fire Up Your Libido

Dr. Jen doesn’t only talk about weight management, renewed energy and sexual vitality for women over 40 – she is a living, breathing example that all of that and more are possible. The Sex Drive Solution is a wealth of information not only from an expert doctor, but a woman, a wife, a mother who […]




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Graphene-supported organoiridium clusters catalyze N-alkylation of amines via hydrogen borrowing reaction

RSC Adv., 2024, 14,35163-35171
DOI: 10.1039/D4RA06595F, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Tsun-Ren Chen, Siang-Yu Chiu, Wen-Jen Lee, Yi-Siou Tsai, Yu-Sheng Huang
Graphene-supported organic iridium clusters (GSOIC) exhibit excellent N-alkylation on various substrates under green processes.
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Synthesis and antibiotic potential of myxocoumarin-inspired chromene dione analogs

RSC Adv., 2024, 14,35215-35219
DOI: 10.1039/D4RA05941G, Paper
Open Access
Antonia Behnsen, Gesa Hertrampf, Sandra Vojnović, Jasmina Nikodinović-Runić, Tobias A. M. Gulder
The myxocoumarins are natural products with strong antibiotic activity. We herein explored structural simplification of the myxocoumarins while aiming to retain their antibacterial properties. This led to the discovery of potent myxochromene diones.
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