Ren X, Shen C, Wang G, Shi Z, Tian X, Dong K. Access to α-Cyano Carbonyls Bearing a Quaternary Carbon Center by Reductive Cyanation.
Org Lett 2021;
23:2527-2532. [PMID:
33760622 DOI:
10.1021/acs.orglett.1c00465]
[Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Reductive cyanation of tertiary alkyl bromides using electrophilic cyanating reagent and zinc reductant was developed, providing various α-cyano ketones, esters, and carboxamides containing a nitrile-bearing all-carbon quaternary center in good to excellent yields under mild reaction conditions. The corresponding reaction mechanism involving in situ generated organozinc reagent and reactivity distinction was elucidated by density functional theory computation.
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