Visible-Light-Initiated Decarboxylative Alkylation Of Quinoxalin-2(1h)-Ones With Phenyliodine(Iii) Dicarboxylates In Recyclable Ruthenium(Ii) Catalytic System
ACS SUSTAINABLE CHEMISTRY & ENGINEERING(2019)
摘要
A efficient and sustainable approach for the synthesis of 3-alkylquinoxalin-2(1H)-ones has been developed through visible-light-mediated decarboxylative alkylation of quinoxalin-2(1H)-ones with phenyliodine(III) dicarboxylates. This photo catalytic alkylation reaction could be conducted at ambient temperature by employing eco-friendly PEG-200 as the reaction medium. Various 3-alkylquinoxalin-2(1H)-ones were easily obtained through the present ruthenium(II) catalytic system, which could be successfully recycled five times without the significant decrease of its efficiency.
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关键词
Quinoxalin-2(IH)-ones,Alkylation,Visible-light catalysis,PEG 200,Recyclability
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