Gallium(III) triflate-catalyzed synthesis of quinoxaline derivatives

Gallium(III) triflate-catalyzed reactions of phenylene-1,2-diamines and 1,2-diketones produce quinoxalines in excellent to quantitative yields. The reactions proceed with 1 mol % catalyst in ethanol at room temperature. The catalyst can be recycled for at least 10 times.

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Bibliographic Details
Published inTetrahedron letters Vol. 49; no. 52; pp. 7386 - 7390
Main Authors Cai, Jing-Jing, Zou, Jian-Ping, Pan, Xiang-Qiang, Zhang, Wei
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier Ltd 22.12.2008
Elsevier
Subjects
Chemistry
Chemistry, Organic
Physical Sciences
Science & Technology
TANDEM OXIDATION PROCESSES
REARRANGEMENT
ROOM-TEMPERATURE
MOLECULAR-IODINE
LEWIS-ACID
EFFICIENT SYNTHESIS
POWERFUL CATALYST
INHIBITORS
PYRAZINES
WATER
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Summary:Gallium(III) triflate-catalyzed reactions of phenylene-1,2-diamines and 1,2-diketones produce quinoxalines in excellent to quantitative yields. The reactions proceed with 1 mol % catalyst in ethanol at room temperature. The catalyst can be recycled for at least 10 times.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2008.10.058