Microwave-Assisted Catalyst-Free and Solvent-Free Method for the Synthesis of Quinoxalines

A green and efficient procedure for the synthesis of quinoxalines is reported starting from benzil and 1,2-diaminobenzene. The reactions were carried out under catalyst-free, solvent-free, and microwave-irradiation conditions, affording the corresponding quinoxalines. This method had many dramatic a...

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Bibliographic Details
Published in:Synthetic communications 2009-09, Vol.39 (20), p.3743-3754
Main Authors: Zhou, Jian-Feng, Gong, Gui-Xia, Zhi, San-Jun, Duan, Xiu-Li
Format: Article
Language:English
Subjects:
1,2-diaminobenzene
Benzil
catalyst-free
microwave irradiation
quinoxaline
solvent-free
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Summary:A green and efficient procedure for the synthesis of quinoxalines is reported starting from benzil and 1,2-diaminobenzene. The reactions were carried out under catalyst-free, solvent-free, and microwave-irradiation conditions, affording the corresponding quinoxalines. This method had many dramatic advantages, such as the short reaction time (2-6 min), high yields (71-98%), and environmental friendliness, as well as convenient operation.
ISSN:0039-7911
1532-2432
DOI:10.1080/00397910902838862