Liao S, Leutzsch M, Monaco MR, List B. Catalytic Enantioselective Conversion of Epoxides to Thiiranes.
J Am Chem Soc 2016;
138:5230-3. [PMID:
27070207 DOI:
10.1021/jacs.6b01960]
[Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly efficient and enantioselective Brønsted acid catalyzed conversion of epoxides to thiiranes has been developed. The reaction proceeds in a kinetic resolution, furnishing both epoxide and thiirane in high yields and enantiomeric purity. Heterodimer formation between the catalyst and sulfur donor affords an effective way to prevent catalyst decomposition and enables catalyst loadings as low as 0.01 mol %.
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