以K 3 PO 4为碱,新戊酸为添加剂,空气中的氧气为氧化剂的1-(2-溴苯基)甲胺和am之间的CuI催化的多米诺反应使一步反应可得到取代的喹唑啉范围介于43%和90%之间。假定该反应以Cu(I)催化的分子间N-芳基化进行,然后进行分子内亲核取代和Cu(II)催化的氧化。am可以被酰亚胺取代,反应也可以与1-(2-碘苯基)甲胺一起进行。
A palladium-catalyzed reductive carbonylation reaction has been developed for the synthesis of quinazolines. With N-(2-iodophenyl)benzimidamide as starting materials, a series of quinazolines were obtained through the aromatic aldehyde intermediates in moderate to good yields with good functional group compatibilities. In this system, silane act as better nucleophile than amidine.