Palanivel A, Mubeen S, Warner T, Ahmed N, Clive DLJ. Formation of Enol Ethers by Radical Decarboxylation of α-Alkoxy β-Phenylthio Acids.
J Org Chem 2019;
84:12542-12552. [PMID:
31462047 DOI:
10.1021/acs.joc.9b02042]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Enol ethers are formed by radical decarboxylation of α-alkoxy β-phenylthio acids via the corresponding Barton esters. The phenylthio acids were usually made by the known regioselective reaction of α,β-epoxy acids with PhSH in the presence of InCl3, followed by O-alkylation of the resulting alcohol. In one case, thiol addition to an α,β-unsaturated ethoxymethyl ester was used.
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