SYNTHESIS OF TETRA- AND PENTA-SUBSTITUTED PYRROLE DERIVATIVES FROM AZAZIRCONACYCLOPENTENE AND ACYL HALIDE IN THE PRESENCE OF CUCL

摘要

Tetra-and penta-substituted pyrrole derivatives 5 and 6 were synthesized from acyl halide and azazirconacyclopentene I, prepared from iminosilaacyl complex 2 and alkyne 4 in the presence of LiEt3BH, by transmetalation of zirconium to copper by a one-pot reaction. [References: 18]