Zhou C, Liu Y, Luo Q, Zhang Y, Zhou J, Zhang H, Liu J. Microwave-accelerated cross-dehydrogenative-coupling (CDC) of
N-(quinolin-8-yl)amides with acetone/acetonitrile under metal-free conditions.
RSC Adv 2023;
13:21231-21235. [PMID:
37456538 PMCID:
PMC10340454 DOI:
10.1039/d3ra03651k]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
A highly selective remote C(sp3)-H acetonation of N-(quinolin-8-yl)amide scaffolds at the C5-position under microwave irradiation has been developed. In the absence of a transition-metal-catalyst, benzoyl peroxide (BPO)-promoted cross-dehydrogenation coupling (CDC) of N-(quinolin-8-yl)amides with acetone/acetonitrile occurred smoothly to generate the corresponding 5-acetonated/acetonitriled N-(quinolin-8-yl)amides in good yields. The transformation is operationally simple, rapid, easily scaled-up to the gram scale, and shows a broad substrate scope.
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