Mallia CJ, Englert L, Walter GC, Baxendale IR. Thiazole formation through a modified Gewald reaction.
Beilstein J Org Chem 2015;
11:875-83. [PMID:
26124889 PMCID:
PMC4464301 DOI:
10.3762/bjoc.11.98]
[Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 04/23/2015] [Indexed: 11/23/2022] Open
Abstract
The synthesis of thiazoles and thiophenes starting from nitriles, via a modified Gewald reaction has been studied for a number of different substrates. 1,4-Dithiane-2,5-diol was used as the aldehyde precursor to give either 2-substituted thiazoles or 2-substituted aminothiophenes depending on the substitution of the α-carbon to the cyano group.
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