ZrOCl2·8H2O as a highly efficient, eco-friendly and recyclable Lewis acid catalyst for one-pot synthesis of N-substituted pyrroles under solvent-free conditions at room temperature
作者:Ali Rahmatpour
DOI:10.1002/aoc.1806
日期:2011.8
A new and efficient method for the synthesis of a variety of N‐substituted pyrroles from condensation reactions of 2,5‐hexanedione with amines or diamines using ZrOCl2·8H2O as a water‐tolerant Lewisacidcatalyst at roomtemperature is described.The use of nontoxic, inexpensive, easily available and reusable catalystunder solvent‐free conditions make this protocol practical, environmentally friendly