Wang LC, Du S, Chen Z, Wu XF. FeCl
3-Mediated Synthesis of 2-(Trifluoromethyl)quinazolin-4(3
H)-ones from Isatins and Trifluoroacetimidoyl Chlorides.
Org Lett 2020;
22:5567-5571. [PMID:
32610908 DOI:
10.1021/acs.orglett.0c01927]
[Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An FeCl3-mediated cascade coupling/decarbonylative annulation reaction for the efficient construction of 2-(trifluoromethyl)quinazolin-4(3H)-ones has been developed. This transformation employs readily available isatins and trifluoroacetimidoyl chlorides as the starting materials, providing a facile and practical route to diverse biologically relevant quinazolin-4(3H)-one derivatives. A plausible reaction pathway has been proposed based on the mechanistic observations.
Collapse