He W, Zheng WF, Qian H. Rh-Catalyzed Carbonylative Cyclization of Propargylic Alcohols with Aryl Boronic Acids.
Org Lett 2024;
26:6279-6283. [PMID:
39023295 DOI:
10.1021/acs.orglett.4c02364]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
2(3H)-Furanones are tremendously important not only because of their wide occurrence in bioactive compounds but also due to their versatility in organic synthesis. Here, a straightforward approach to 2(3H)-furanones from readily available tertiary propargylic alcohols with arylboronic acids in the presence of CO using rhodium as a catalyst has been established. The method exhibits a broad substrate scope tolerating useful functional groups with a moderate to high stereoselectivity.
Collapse