Divergent approach to flavones and aurones via dihaloacrylic acids. Unexpected dependence on the halogen atom.
The reaction of phenols with 7a led to the synthesis of aurones, while the reaction of phenols with 7b led to the synthesis of flavones.
Kraus
George A
GA
Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States. gakraus@iastate.edu
Gupta
Vinayak
V
D001572:Benzofurans / Q000138:chemical synthesis* / Q000737:chemistry; D047309:Flavones / Q000138:chemical synthesis* / Q000737:chemistry; D006846:Hydrocarbons, Halogenated / Q000737:chemistry*; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*
D001572:Benzofurans; D047309:Flavones; D006846:Hydrocarbons, Halogenated; D010636:Phenols; C486837:aurone