

SYNTHESIS OF DIHYDROBENZOTHIAZEPINES BASED ON 1-ACYL-2-HETERYL-1-NITROETHENES

Abstract
The reactions of thiophene- and N-benzylindole-containing gem-acetylnitroethenes with 2-aminobenzothiol lead to the formation of 4-methyl-3-nitro-2,3-dihydro-1,5-benzothiazepines. At the same time, only S-adducts were formed in the reactions of gem-benzoylnitroethenes containing a thiophene, furan, or N-benzylindole substituent with 2-aminobenzothiol.
Keywords
gem-acylnitroethene; 2-aminobenzothiol; 1,5-benzothiazepine; 2,3-dihydro-1,5-benzothiazepine; enone; nitroethene.
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv