Kasatkina SO, Stepanova EE, Dmitriev MV, Mokrushin IG, Maslivets AN. Synthesis of pyrimido[1,6-
a]quinoxalines via intermolecular trapping of thermally generated acyl(quinoxalin-2-yl)ketenes by Schiff bases.
Beilstein J Org Chem 2018;
14:1734-1742. [PMID:
30112078 PMCID:
PMC6071730 DOI:
10.3762/bjoc.14.147]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/26/2018] [Indexed: 12/31/2022] Open
Abstract
Acyl(quinoxalin-2-yl)ketenes generated by thermal decarbonylation of 3-acylpyrrolo[1,2-a]quinoxaline-1,2,4(5H)-triones react regioselectively with Schiff bases under solvent-free conditions to form pyrimido[1,6-a]quinoxaline derivatives in good yields.
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