Laurent M, Bostyn S, Marchivie M, Robin Y, Routier S, Buron F. Aminations and arylations by direct C-O activation for the design of 7,8-dihydro-6
H-5,8-ethanopyrido[3,2-
d]pyrimidines.
RSC Adv 2021;
11:19363-19377. [PMID:
35479218 PMCID:
PMC9033610 DOI:
10.1039/d1ra03092b]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/17/2021] [Indexed: 11/21/2022] Open
Abstract
The design of some novel disubstituted 7,8-dihydro-6H-5,8-ethanopyrido[3,2-d]pyrimidine derivatives is reported. The series was developed from quinuclidinone, which afforded versatile platforms bearing one lactam function in position C-2 that were then used to create C-N or C-C bonds for S N Ar or palladium-catalyzed cross-coupling reactions by in situ C-O activation. The reaction conditions were optimized under microwave irradiation, and a wide range of amines or boronic acids were used to determine the scope and limitations of each method. To complete this study, the X-ray crystallographic data of 7,8-dihydro-6H-5,8-ethanopyrido[3,2-d]pyrimidine derivative 49 were used to formally establish the structures of the products.
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