A NEW SYNTHETIC ROUTE TO 1,3-DITHIOLIUM SALTS INVOLVING NEIGHBORING GROUP PARTICIPATION OF DITHIOCARBAMATE GROUP
作者:Kazuhisa Hiratani、Hiroyuki Shiono、Makoto Okawara
DOI:10.1246/cl.1973.867
日期:1973.8.5
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
描述了一种新的有用的 1,3-二硫鎓盐合成路线,其中二硫代氨基甲酸酯基团的相邻基团参与是关键步骤。通过将等摩尔溴加入到 S-乙烯基-N,N-二烷基二硫代氨基甲酸酯中,然后在减压下热解该盐,以高收率获得 4-Bromo-2-dialkylamino-1,3-dithiolan-2-ylium bromide以极好的收率得到1,3-二硫鎓盐。4-取代的-1,3-二硫鎓盐也以同样的方式获得。