denitrogenative and desulfinative addition of arylsulfonyl hydrazides with nitriles has been successfully achieved under mild conditions. This transformation is a new method for the addition reaction to nitriles with arylsulfonyl hydrazides as arylating agent, thus providing an alternative synthesis of aryl ketones. The reported addition reaction is tolerant to many common functional groups, and works
Iodine-Catalyzed Regioselective Sulfenylation of 4H-Pyrido[1,2-a]pyrimidin-4-ones with Sulfonyl Hydrazides
作者:Shaohua Wang、Wenjie Liu、Zhihao Cai、Ziying Li、Jianwen Liu、Anda Wang
DOI:10.1055/s-0036-1588549
日期:2018.1
A simple and efficient method for direct sulfenylation of 4H-pyrido[1,2-a]pyrimidin-4-ones with sulfonyl hydrazides has been developed. The transformation is catalyzed by iodine under metal-free conditions with high regioselectivity and good functional-group tolerance.
Copper-Catalyzed Aerobic Oxidative Reaction of Sulfonyl Hydrazides with Alcohols: An Easy Access to Sulfinates
作者:Bingnan Du、Zan Li、Ping Qian、Jianlin Han、Yi Pan
DOI:10.1002/asia.201501262
日期:2016.2
A Cu‐catalyzed aerobicoxidativereaction between sulfonylhydrazides and alcohols has been developed. In this reaction, sulfonylhydrazides act as the sulfinic acid precursors to react with alcohols, resulting in sulfinic esters with up to 72 % yield. This catalytic system tolerates a wide range of sulfonylhydrazide substrates, and represents a new strategy for the transformation of readily available
Gold-Catalyzed Dehydrazinative C(sp)-S Coupling Reactions of Arylsulfonyl Hydrazides with Ethynylbenziodoxolones for Accessing Alkynyl Sulfones
作者:Popat S. Shinde、Nitin T. Patil
DOI:10.1002/ejoc.201700524
日期:2017.6.30
A gold(III)-catalyzed dehydrazinative coupling reaction between TIPS-EBX and arylsulfonylhydrazides has been realized for the synthesis of arylalkynyl sulfones. The scope and versatility of the reaction has been demonstrated by efficient synthesis of 23 derivatives with diverse structural features.
Palladium-Catalyzed Direct Arylation of N-Heteroarenes with Arylsulfonyl Hydrazides
作者:Bo Liu、Jian Li、Feijie Song、Jingsong You
DOI:10.1002/chem.201201450
日期:2012.8.27
Hydrazides applied: A palladium‐catalyzed direct CH arylation of heteroarenes, with arylsulfonylhydrazides as the arylating reagents, has been developed (see scheme). The reaction is chemoselective, in that arylsulfonylhydrazides containing halogen substituents can be employed without participation of the halogen substituent in the reaction. The method offers a straightforward approach to a variety