Regioselective Synthesis of 2,3,4-Trisubstituted Pyrroles via Pd(II)-Catalyzed Three-Component Cascade Reactions of Amines, Alkyne Esters, and Alkenes
作者:Xu Zhang、Xuefeng Xu、Gong Chen、Wei Yi
DOI:10.1021/acs.orglett.6b02325
日期:2016.10.7
three-component cascade reaction of diverse amines, alkyne esters, and alkenes is disclosed for the direct synthesis of diverse 2,3,4-trisubstituted pyrroles with broad functional group tolerance and in good to excellent yields. This transformation is supposed to proceed through the cascade formation of C(sp2)–C(sp2) and C(sp2)–N bonds via Pd(II)-catalyzed regioselective alkene migratory insertion, intramolecular