Jing Q, Qiao FC, Sun J, Wang JY, Zhou MD. Persulfate promoted carbamoylation of
N-arylacrylamides and
N-arylcinnamamides with 4-carbamoyl-Hantzsch esters.
Org Biomol Chem 2023;
21:7530-7534. [PMID:
37674373 DOI:
10.1039/d3ob01240a]
[Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Carbamoyl-Hantzsch esters were used as carbamoyl radical precursors for oxidative carbamoylation of N-arylacrylamides and N-arylcinnamamides in the presence of inexpensive persulfates. This protocol can be applied to a broad range of substrates with various functional groups, providing a variety of 3,3-disubstituted oxindoles and 3,4-disubstituted dihydroquinolin-2(1H)-ones in moderate to good yields via an intermolecular addition/cyclization process.
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