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ChemInform Abstract: Synthesis of N-Unsubstituted 2-Arylpyrazolo[1,5-a]benzimidazoles from 1-Benzylideneamino-2-methylbenzimidazole and the Role of Acylotropic and Acylotropic-Prototropic Isomerization.

✍ Scribed by T. A. Kuz'menko; L. N. Divaeva; A. S. Morkovnik

Publisher: John Wiley and Sons
Year: 2012
Weight: 29 KB
Volume: 43
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201207104

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✦ Synopsis

Abstract

The title compounds (IV) are obtained for the first time starting from 2‐methylbenzimidazole (I) by benzoylation of the methyl group followed by cyclization of the resulting vinyl acylates (III).

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