A mild and efficientsynthesis of highlysubstitutedpyrroles using the reaction of triphenylphosphine, α-diketone, ammonium acetate, and dialkyl acetylenedicarboxylates is described.
One-Pot Four-Component Synthesis of Tetrasubstituted Pyrroles
作者:M. Z. Kassaee、Hassan Masrouri、Farnaz Movahedi、Tayyebeh Partovi
DOI:10.1002/hlca.200890027
日期:2008.2
A convenient one-potfour-componentsynthesis of tetrasubstitutedpyrroles was carried out through the reaction of butane-2,3-dione with α-aminophosphorous ylides, obtained in situ from the 1 : 1 : 1 addition reaction between triphenylphosphine, dialkyl acetylenedicarboxylate, and ammonium acetate.