We have developed a versatile and efficient method for copper-catalyzed
synthesis of both 2-amino-4(3H)-quinazolinone and
2-aminoquinazoline derivatives. The protocol uses readily available
substituted 2-halobenzoic acids, 2-bromobenzaldehyde, 2-bromophenyl
ketones and guanidines as the starting materials, inexpensive copper(I)
iodide as the catalyst, and the method has important application
values for construction of N-heterocycles in organic chemistry and
medicinal chemistry.
copper-catalyzed - cross-coupling - 2-amino-4(3H)-quinazolinone - 2-aminoquinazoline - synthetic method