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Reactions with hydrazidoyl halides VIII: Synthesis of thiazolo [3,2-a] benzimidazoles, imidazo[2,1-b] thiazoles and imidazo[2,1-b] benzthiazoles

✍ Scribed by Fikry A. Abdel-Mohdy; Abdou O. Abdelhamid


Book ID
112959986
Publisher
Springer
Year
1992
Tongue
English
Weight
362 KB
Volume
15
Category
Article
ISSN
0253-6269

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## Abstract 5‐Oxo‐5__H__‐[1,3]thiazolo[3,2‐__a__]pyrimidine‐6‐carboxylic acid (**4**), and 6‐methylimidazo[2,1‐__b__]thiazole‐5‐carboxylic acid (**17**) were reacted with amines **6a‐i** by the reaction with oxalyl chloride and __N, N__‐di methyl‐formamide as a catalyst into primary and secondary a