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Cyanoacetylenes in reaction with benzimidazol-2-one

โœ Scribed by N. D. Abramova; L. V. Andriyankova; A. G. Mal'kina; Yu. M. Skvortsov


Book ID
112424378
Publisher
Springer
Year
1992
Tongue
English
Weight
215 KB
Volume
41
Category
Article
ISSN
1573-9171

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Reaction of benzimidazole-2(2H)-thione w
โœ Alexander McKillop; Geoffrey C.A. Bellinger; Peter N. Preston; Alex Davidson; Tr ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 216 KB

Reaction of benzimidazole-2(2@-thione 2 with dimethyl acetylenedicarboxylate (DMAD) has been reported by Grinblat and Postovskii to give the thiazolo[3,2-albenzimidazole 2.' On mechanistic grounds, however, condensation of i with DMAD can give rise to one or more of at least four products ,2, 2, 4~