Under the catalysis of Lewis acid Co(CIO4)2 the reaction of the sterically hindered 1,1,2,3-tetrasubstituted cyclopropanes with arylamines in refluxing THF gave the functionalized 2-aminopyrroles with sequential rin...Under the catalysis of Lewis acid Co(CIO4)2 the reaction of the sterically hindered 1,1,2,3-tetrasubstituted cyclopropanes with arylamines in refluxing THF gave the functionalized 2-aminopyrroles with sequential ring-opening of cyclopropane, nucleophilic substitution, nucleophilic addition of cyano group and recyclization processes.展开更多
文摘Under the catalysis of Lewis acid Co(CIO4)2 the reaction of the sterically hindered 1,1,2,3-tetrasubstituted cyclopropanes with arylamines in refluxing THF gave the functionalized 2-aminopyrroles with sequential ring-opening of cyclopropane, nucleophilic substitution, nucleophilic addition of cyano group and recyclization processes.