Hypervalent Iodine in Synthesis XXXV: A Simple and Convenient Stereospecific Synthesis of Vinyl Esters of Dithiocarbamic Acids
作者:Jie Yan、Zhen-Chu Chen
DOI:10.1080/00397919908086455
日期:1999.8
Abstract Vinyl esters of dithiocarbamic acids have been stereospecifically prepared by the reaction of sodium dithiocarbamates with vinyi(phenyi)iodonium tetrafluoroborates with retention or inversion of the configurations.
A new and useful synthetic route to 1,3-dithiolium salts involving neighboring group participation of dithiocarbamate group as a key step is described. 4-Bromo-2-dialkylamino-1,3-dithiolan-2-ylium bromide was obtained in high yield by the addition of equimolar bromine to S-vinyl-N,N-dialkyldithiocarbamate, and then, pyrolysis of the salt under reduced pressure gave 1,3-dithiolium salt in excellent
Copper-Catalyzed Direct C(sp2)–H Sulfuration of Aryl Alkenes by Using Tetraalkylthiuram Disulfides for the Synthesis of Alkenyl Dithiocarbamates
作者:Zhipeng Zhang、Jing Jiao
DOI:10.1055/a-1820-2475
日期:2022.8
Copper-catalyzed direct C(sp2)–H sulfuration of aryl alkenes by using tetraalkylthiuram disulfides as sulfuration reagents has been developed. The reaction provides an efficient method for the synthesis of a variety of alkenyl dithiocarbamates, which are important structure motifs widely applied in materials, pharmaceuticals, and agrochemicals.