Concise synthesis of N-thiomethyl benzoimidazoles through base-promoted sequential multicomponent assembly?

RSC Advances Pub Date: 2019-09-26 DOI: 10.1039/C9RA06144D

Abstract

An efficient method for the synthesis of N-thiomethyl benzimidazoles from o-phenylenediamines, thiophenols, and aldehydes via C–N/C–S bond formation under metal-free conditions is described. A broad range of functional groups attached to the substrates were well tolerated in this reaction system. Stable and low-toxicity paraformaldehyde was used as the carbon source.

Graphical abstract: Concise synthesis of N-thiomethyl benzoimidazoles through base-promoted sequential multicomponent assembly
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