Liu JL, Wang W, Qi X, Wu XF. Palladium-Catalyzed Reductive Aminocarbonylation of
o-Iodophenol-Derived Allyl Ethers with
o-Nitrobenzaldehydes to 3-Alkenylquinolin-2(1
H)-ones.
Org Lett 2022;
24:2248-2252. [PMID:
35271283 DOI:
10.1021/acs.orglett.2c00648]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An attractive palladium-catalyzed reductive aminocarbonylation reaction of allylic ethers has been explored for the synthesis of 3-alkenylquinolin-2(1H)-one derivatives. With Mo(CO)6 as both CO surrogate and reductant, a variety of 3-alkenylquinolin-2(1H)-ones were obtained in good to excellent yields from o-iodophenol-derived allyl ethers with o-nitrobenzaldehydes as the nitrogen sources. This reaction proceeds through a cascade pathway and does not rely on high-pressure CO gas as needed in former allylic carbonylation reactions. This strategy provides a new pathway for the construction of 3-alkenylquinolin-2(1H)-ones.
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