Wan Q, Li S, Kang Q, Yuan Y, Du Y. Chiral-at-Metal Rh(III) Complex Catalyzed Cascade Reduction-Michael Addition Reaction.
J Org Chem 2019;
84:15201-15211. [PMID:
31661265 DOI:
10.1021/acs.joc.9b02243]
[Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An enantioselective three-component cascade reduction-Michael addition reaction catalyzed by chiral-at-metal Rh(III) complexes has been developed. With a Hantzsch ester as the hydride source, a number of malononitrile derivatives were prepared in good yields and excellent enantioselectivities. A model that accounts for the origin and influence factors of the stereoselectivity has been proposed based on experiments.
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