A Co-catalyzed cyclization reaction of isocyanides, azides, and amines to access quinazoline derivatives was described. This protocol features a high atom economy, mild reaction conditions, excellent yields, and a broad substrate scope. This cascade reaction involved three or four C–N bonds and the formation of one or two rings. The quinazolin-4(H)-imines obtained are proven to be versatile intermediates
                                    描述了异
氰化物、
叠氮化物和胺的共催化环化反应以获取
喹唑啉衍
生物。该协议具有高原子经济性、温和的反应条件、优异的产率和广泛的底物范围。这种级联反应涉及三个或四个 C-N 键和一个或两个环的形成。获得的
喹唑啉-4( H )-
亚胺被证明是用于进一步有价值转化的通用中间体。还发现
钴催化剂可以从反应混合物中分离并重新使用。