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Org Lett. 2004 Mar 04;6(5):843-6. doi: 10.1021/ol0498803.

Synthesis of substituted imidazoles via organocatalysis.

Organic letters

Doug E Frantz, Louis Morency, Arash Soheili, Jerry A Murry, Edward J J Grabowski, Richard D Tillyer

Affiliations

  1. Department of Process Research, Merck Research Laboratories, Merck & Co., 466 Devon Park Drive, Wayne, PA 19087, USA.

PMID: 14986989 DOI: 10.1021/ol0498803

Abstract

A one-pot synthesis of substituted imidazoles is described. The cornerstone of this methodology involves the thiazolium-catalyzed addition of an aldehyde to an acyl imine to generate the corresponding alpha-ketoamide in situ followed by ring closure to the imidazole in a one-pot sequence. The extension of this methodology to the one-pot synthesis of substituted oxazoles and thiazoles is also described. [reaction: see text]

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