Metal-free regioselective tandem synthesis of diversely substituted benzimidazo-fused polyheterocycles in aqueous medium

Mishra, P. K. ORCID: https://orcid.org/0000-0003-1141-3487 and Verma, A. K. 2016. Metal-free regioselective tandem synthesis of diversely substituted benzimidazo-fused polyheterocycles in aqueous medium. Green Chemistry 18 (23) , pp. 6367-6372. 10.1039/c6gc02330d

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Abstract

An operationally simple approach for the synthesis of diversely substituted benzimidazo-fused polyheterocycles under metal-free conditions in water has been described. The aqueous medium accelerates the formation of the desired product by avoiding side-products as well as harsh reaction conditions. The reaction proceeds through inter and intramolecular C–N bond formation in one-pot via 6-endo-dig cyclization. Deuterium labelling and X-ray crystallographic studies supported the proposed mechanistic pathway for the targeted cyclized product.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	1463-9262
Date of Acceptance:	21 September 2016
Last Modified:	09 Nov 2022 10:59
URI:	https://orca.cardiff.ac.uk/id/eprint/141407

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