Verdelet T, Benmahdjoub S, Benmerad B, Alami M, Messaoudi S. Copper-Catalyzed Anomeric O-Arylation of Carbohydrate Derivatives at Room Temperature.
J Org Chem 2019;
84:9226-9238. [PMID:
31274301 DOI:
10.1021/acs.joc.9b01218]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Direct and practical anomeric O-arylation of sugar lactols with substituted arylboronic acids has been established. Using copper catalysis at room temperature under an air atmosphere, the protocol proved to be general, and a variety of aryl O-glycosides have been prepared in good to excellent yields. Furthermore, this approach was extended successfully to unprotected carbohydrates, including α-mannose, and it was demonstrated here how the interaction between carbohydrates and boronic acids can be combined with copper catalysis to achieve selective anomeric O-arylation.
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