作者:William R. Dolbier、Conrad Burkholder、Khalil A. Abboud、David Loehle
DOI:10.1021/jo00104a025
日期:1994.12
The cyclocondensation of pentafluorobenzoyl chloride with 2-mercaptobenzimidazole (6), 2-mercaptoimidazole (10), 2-imidazolidinethione (12), and perimidine-2-thione 15 gave tetrafluorobenzo heterocycles 7, 11, 13, and 16, respectively. In addition, the reaction of 2-mercaptobenzimidazole (6) with pentafluorobenzyl bromide followed by treatment with NaH gave tetrafluorobenzo heterocycle 22.