A palladium-catalyzedsynthesis of acyl pyrroles from aryl and alkenyl iodides is reported. This carbonylative amination requires only atmospheric (balloon) pressure of carbon monoxide and proceeds with Pd(PPh3)4 and Pd-NHC catalysts. Aryl and heteroaryl iodides give the corresponding acyl pyrroles in good to excellent yields, while alkenyl iodides provide the corresponding acyl pyrroles in low to
A Convenient Synthesis of<i>N</i>-Acylpyrroles from Primary Aromatic Amides
作者:Dallas K. Bates、Anil R. Ekkati
DOI:10.1055/s-2003-41020
日期:——
Synthesis of N-acylpyrroles in 45-85% isolated yield from primary aromatic amides and excess 2,5-dimethoxytetrahydrofuran in presence of one equivalent of thionyl chloride is reported. This method has several advantages including short reaction times, mild reaction conditions, and easy workup. The technique works particularly well for deactivated aromatic amides.