Electrochemical sulfonylation of thiols with sulfonyl hydrazides: a metal- and oxidant-free protocol for the synthesis of thiosulfonates
作者:Zu-Yu Mo、Toreshettahally R. Swaroop、Wei Tong、Yu-Zhen Zhang、Hai-Tao Tang、Ying-Ming Pan、Hong-Bin Sun、Zhen-Feng Chen
DOI:10.1039/c8gc02143k
日期:——
We have developed a new metal- and oxidant-free method for the synthesis of anticancer thiosulfonates via sulfonylation of thiols.
我们已经开发出一种新的无金属和氧化剂的方法,通过对硫醇进行磺化合成抗癌硫代磺酸酯。
Iodine-catalyzed sulfonylation of sulfonyl hydrazides with <i>tert</i>-amines: a green and efficient protocol for the synthesis of sulfonamides
作者:Jinyang Chen、Xiaoran Han、Lan Mei、Jinchuan Liu、Kui Du、Tuanwu Cao、Qiang Li
DOI:10.1039/c9ra07361b
日期:——
This study provides a direct, sustainable and eco-friendly method for the synthesis of various sulfonamides via the sulfonylation of sulfonyl hydrazides with tert-amines. The method utilizes sulfonyl hydrazides to oxidize and couple with tertiary amines through selective cleavage of C–N bonds. In this reaction, molecular iodine was used as the catalyst and t-butyl hydroperoxide was used as the oxidant
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
Synergy of anodic oxidation and cathodic reduction leads to electrochemical deoxygenative C2 arylation of quinoline <i>N</i>-oxides
作者:Yong Yuan、Minbao Jiang、Tao Wang、Yunkui Xiong、Jun Li、Huijiao Guo、Aiwen Lei
DOI:10.1039/c9cc05841a
日期:——
The first example of electrochemical deoxygenative C2 arylation of quinoline N-oxides using sulfonyl hydrazines was demonstrated in this work. By employing both anodicoxidation and cathodicreduction, a variety of 2-arylquinolines were synthesized under metal catalyst-, exogenous-oxidant-, and exogenous-reductant-free conditions.
Diversity‐Orientated Stereoselective Synthesis through Pd‐Catalyzed Switchable Decarboxylative C−N/C−S Bond Formation in Allylic Surrogates
作者:Lei Deng、Arjan W. Kleij、Weibo Yang
DOI:10.1002/chem.201805295
日期:2018.12.20
diversity‐orientated synthesis from easily available molecular synthons. Herein, an endogenous ligand‐controlled, Pd‐catalyzed allylic substitution allowing for either selective C−N or C−Sbondformation using vinylethylene carbonates (VECs) and N‐sulfonylhydrazones as coupling partners has been developed. This versatile methodology provides a facile, divergent route for the highly chemo‐ and stereoselective