2-(Aminoaryl)alkanone O-phenyl oximes: versatile reagents for syntheses of quinazolines
作者:Fernando Portela-Cubillo、Jackie S. Scott、John C. Walton
DOI:10.1039/b803630f
日期:——
Microwave irradiations of 2-(aminoaryl)alkanone O-phenyl oximes and carbonyl compounds generate iminyl radicals in company with imines; iminyl on imine ring closure yields dihydroquinazolines or quinazolines when ZnCl2 is included in the mixture.
Microwave-Promoted Syntheses of Quinazolines and Dihydroquinazolines from 2-Aminoarylalkanone <i>O</i>-Phenyl Oximes
作者:Fernando Portela-Cubillo、Jackie S. Scott、John C. Walton
DOI:10.1021/jo900629g
日期:2009.7.17
was included in the reaction mixture, fully aromatic quinazolines were produced in high yields by a rapid and convenient process. The method worked well with alkyl, aryl, and heterocyclic aldehydes and for a variety of substituents in the benzenic part of the molecule. Similar reactions employing ketones instead of aldehydes were less efficient. Although some dihydroquinazolines did form, they were accompanied