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Copper-catalyzed oxidative cyclization of arylamides and β-diketones: new synthesis of 2,4,5-trisubstituted oxazoles†
Yang Bai,Wen Chen,Ya Chen,Huawen Huang,Fuhong Xiao,Guo-Jun Deng
RSC Advances Pub Date : 12/19/2014 00:00:00 , DOI:10.1039/C4RA14394A
Abstract

A novel copper catalyzed approach to oxazoles via enamide intermediates was developed from benzamides and β-diketones. The successive condensation and cyclization reactions afforded various 2,4,5-trisubstituted oxazoles in good yields.

Graphical abstract: Copper-catalyzed oxidative cyclization of arylamides and β-diketones: new synthesis of 2,4,5-trisubstituted oxazoles
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