Png ZM, Cabrera-Pardo JR, Peiró Cadahía J, Gaunt MJ. Diastereoselective C-H carbonylative annulation of aliphatic amines: a rapid route to functionalized γ-lactams.
Chem Sci 2018;
9:7628-7633. [PMID:
30393523 PMCID:
PMC6182607 DOI:
10.1039/c8sc02855a]
[Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 07/20/2018] [Indexed: 11/21/2022] Open
Abstract
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A palladium(ii)-catalysed C(sp3)–H carbonylation of free(NH) secondary aliphatic amines to 2-pyrrolidinones is described.
A palladium(ii)-catalysed C(sp3)–H carbonylation of free(NH) secondary aliphatic amines to 2-pyrrolidinones is described. A correlation between the nature of the carboxylate ligand and the diastereoselectivity and yield of the process was observed. As such, under these optimal conditions a range of aliphatic amines were converted to the corresponding trans-4,5-disubstituted 2-pyrrolidines with good d.r. and yield.
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