A. P. Komin, M. Carmack
Oct 1, 1975
Citations
0
Influential Citations
32
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
Benzo [1,2-c:3,4-c′:5,6-c″] tris [1,2,5] thiadiazole (1) was synthesized from benzo [1,2-c:3,4-c′] - bis [1,2,5] thiadiazole (11). Nitration of 11 gave compound 15, which on direct amination gave nitroamine 17. Reduction of 17 gave diamine 18, and cyclization of 18 with thionyl chloride gave 1. Diamine 18 was also cyclized with selenium oxychloride, glyoxal, 9,10-phenanthrene-quinone, and formic acid to give the compounds 4, 5, 19, and 6, respectively. A new procedure for the preparation of 2,1,3-benzothiadiazole (7) from o-phenylenediamine was used.