Liu S, Liu Y, Flaget A, Zhang C, Mazet C. Cu-Catalyzed Enantioselective Protoboration of 2,3-Disubstituted 1,3-Dienes.
Org Lett 2023;
25:6897-6901. [PMID:
37695719 PMCID:
PMC10521025 DOI:
10.1021/acs.orglett.3c02627]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Indexed: 09/13/2023]
Abstract
A Cu-catalyzed regio- and enantioselective protoboration of 2,3-disubstituted 1,3-dienes is described. The protocol operates under mild conditions and is applicable to symmetrically and unsymmetrically substituted dienes, providing access to homoallylic boronates in consistently high yield, regioselectivity, and enantiomeric ratio. Preliminary investigations point to a complex mechanism.
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