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- Title
Synthesis of Flavones and γ-Benzopyranones Using Mild Sonogashira Coupling and 18-Crown-6 Ether Mediated 6- endo Cyclization.
- Authors
Chuang, Da-Wei; El-Shazly, Mohamed; Balaji D., Barve; Chung, Yu-Ming; Chang, Fang-Rong; Wu, Yang-Chang
- Abstract
An efficient method for the synthesis of flavones and γ-benzopyranones has been developed utilizing a mild Sonogashira coupling and 18-crown-6 ether mediated 6- endo cyclization of o-alkynoylphenyl acetates. By using this strategy, flavones and γ-benzopyranones bearing electron-donating groups, halogens, and simple alkyl substituents were synthesized in satisfactory yields.
- Publication
European Journal of Organic Chemistry, 2012, Vol 2012, Issue 24, p4533
- ISSN
1434-193X
- Publication type
Article
- DOI
10.1002/ejoc.201200529