Free-Radical-Promoted Copper-Catalyzed Intermolecular Cyanosulfonylation and Cyanotrifluoromethylation of Unactivated Alkenes in Water-Containing Solvents
作者:Yan Zhu、Jinlong Tian、Xianfeng Gu、Yonghui Wang
DOI:10.1021/acs.joc.8b02073
日期:2018.11.2
A novel and practical copper-catalyzed strategy for intermolecular cyanosulfonylation and cyanotrifluoromethylation of unactivated alkenes in water-containing solvents is described. The methodology developed provides an efficient and convenientaccess to a variety of β-sulfonyl nitriles and β-trifluoromethyl nitriles, which would have wide applications in chemical and pharmaceutical industries.
Free radical type addition of toluenesulfonyl cyanide to unsaturated hydrocarbons
作者:Jim-Min Fang、Ming-Yi Chen
DOI:10.1016/s0040-4039(00)96226-9
日期:1987.1
By catalysis of AIBN, tosyl cyanide adds in a regio- and stereoselective manner to unsaturatedhydrocarbons, including alkenes, dienes and 1-hexyne. Accompanied intramolecular cyclization and ring cleavage were effected in reactions with norbornadiene, 1,5-cyclooctadiene and pinenes.
The invention of radical reactions. Part XXIII new reactions: Nitrile and thiocyanate transfer to carbon radicals from sulfonyl cyanides and sulfonyl isothiocyanates.
作者:Derek H.R. Barton、Joseph Cs. Jaszberenyi、Emmanouil A. Theodorakis
DOI:10.1016/s0040-4020(01)88524-0
日期:1992.3
Reaction of p-toluenesulphonyl cyanide or methanesulfonyl cyanide with carbon radicals, generated from the corresponding O-acyl-N-hydroxy-2-thiopyridone derivatives by visible light photolysis gives nitriles in good yield. The homolysis products of these sulfonyl nitriles can also be trapped by electron rich olefins. We have also found that carbon radicals react easily with mesyl or tosyl isothiocyanate