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Paper | Regular issue | Vol 32, No. 10, 1991, pp.1897-1912
Published online, 1st January, 1970
DOI: 10.3987/COM-91-5672
Bridgehead Nitrogen Heterocycles. Part V. Synthesis of Some 1,3,4-Oxa/Thiadiazolo[3,2-a]pyrimidin-5-ones, 1,3,4-Oxa/Thiadiazolo[3,2-a][1,3,5]triazin-7-thiones, 1,3,4-Thiadiazolo[3,2-a][1,3,5]triazine-5(6H,7H)-thiones, 1,2,4-Triazolo[3,4-b][1,3,4]thiadiazine and Thiadiazoles Derivatives

Probin Chandra Gogoi, Mantu Moni Dutta, and Jiban Chandra Sarmah Kataky*

*Regional Research Laboratory, Jorhat 785 006, Assam, India

Abstract

1,3,4-Oxa/thiadiazolo[3,2-a]pyrimidin-5-ones (7a-d, 8a-d), 1,3,4-oxa/thiadiazolo[3,2-a][1,3,5]triazin-7-thiones (11a-c, 12a-c), 1,3,4-oxa/thiadiazolo[3,2-a][1,3,5]triazin-5(6H,7H)-thiones (15a-l, 16a-l) , 1,2,4-triazolo[3,4-b][1,3,4]thiadiazines (18a-e) and 1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles (19a-o) were synthesized. The physical and spectral data of the new compounds were described.