Yu S, Sang HL, Ge S. Enantioselective Copper-Catalyzed Alkylation of Quinoline N-Oxides with Vinylarenes.
Angew Chem Int Ed Engl 2017;
56:15896-15900. [PMID:
29044900 DOI:
10.1002/anie.201709411]
[Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/14/2017] [Indexed: 11/06/2022]
Abstract
An asymmetric copper-catalyzed alkylation of quinoline N-oxides with chiral Cu-alkyl species, generated by migratory insertion of a vinylarene into a chiral Cu-H complex, is reported. A variety of quinoline N-oxides and vinylarenes underwent this Cu-catalyzed enantioselective alkylation reaction, affording the corresponding chiral alkylated N-heteroarenes in high yield with high-to-excellent enantioselectivity. This enantioselective protocol represents the first general and practical approach to access a wide range of chiral alkylated quinolines.
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