An efficient and straightforward synthetic strategy based on the higher-order multicomponent reactions (MCRs) is established for the synthesis of quinoxaline-furan bis-heterocyclic structures. The process includes a one-pot, pseudo-five component reaction of 3,4-diaminobenzoic acid, a 1,2-dicarbonyl compound, a dialkylacetylenedicarboxylate, and two equivalents of an isocyanide as the readily available
建立了一种基于高阶多组分反应(MCR)的高效且简单的合成策略,用于合成喹喔啉-呋喃双杂环结构。该方法包括 3,4-二氨基苯甲酸、1,2-二羰基化合物、乙炔二甲酸二烷基酯和两当量异氰化物(作为容易获得的前体)的一锅假五组分反应。该方法的显着特点是锅和原子经济性、七种新键形成、操作简单、高产率和克级适用性。还使用靛红衍生物通过连续反应合成了吲哚[2,3- b ]喹喔啉-呋喃三杂环。