Synthesis of New Tetrafluorobenzo Heteroaromatic Compounds
摘要:
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.
作者:G. N. Lipunova、E. V. Nosova、G. A. Mokrushina、E. G. Ogloblina、G. G. Aleksandrov、V. N. Charushin
DOI:10.1023/a:1025548505109
日期:——
The heating of derivatives of benzimidazole-2-thione and imidazolidine-2-thione with tetra- (penta)fluorobenzoyl chlorides in toluene or pyridine gave rise to fluorocontaining derivatives of imidazo[2,1-b][1,3]benzothiazine. The latter were studied in reactions of nucleophilic substitution of fluorine for amino groups.