Etxabe J, Izquierdo J, Landa A, Oiarbide M, Palomo C. Catalytic Enantioselective Synthesis of N,C(α),C(α)-Trisubstituted α-Amino Acid Derivatives Using 1H-Imidazol-4(5H)-ones as Key Templates.
Angew Chem Int Ed Engl 2015;
54:6883-6. [PMID:
25907987 DOI:
10.1002/anie.201501275]
[Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/24/2015] [Indexed: 11/06/2022]
Abstract
1H-Imidazol-4(5H)-ones are introduced as novel nucleophilic α-amino acid equivalents in asymmetric synthesis. These compounds not only allow highly efficient construction of tetrasubstituted stereogenic centers, but unlike hitherto known templates, provide direct access to N-substituted (alkyl, allyl, aryl) α-amino acid derivatives.
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