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Polynuclear heterocyclic systems. III: Reaction of 2-aminocyclanones with dimethyl acetylenedicarboxylate

✍ Scribed by U. K. Pandit; H. O. Huisman

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
563 KB
Volume
85
Category
Article
ISSN
0165-0513

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Reaction of benzimidazole-2(2H)-thione w
Reaction of benzimidazole-2(2H)-thione with dimethyl acetylenedicarboxylate
✍ Alexander McKillop; Geoffrey C.A. Bellinger; Peter N. Preston; Alex Davidson; Tr πŸ“‚ Article πŸ“… 1978 πŸ› Elsevier Science 🌐 French βš– 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~