Cg. Dave et Va. Parikh, Heterocyclization using phase transfer catalysis: A simple and convenient synthesis of 2-amino-1-aryl-5-oxo-4,5-dihydro-1H-pyrrole-3-carbonitriles, SYN COMMUN, 31(9), 2001, pp. 1301-1306
A simple and convenient synthesis of 2-amino-1-aryl-5-oxo-4,5-dihydro-1H-py
rrole-3-carbonitriles has been studied with and without phase transfer cond
itions. The best results were obtained using 18-crown-6 under solid-liquid
phase transfer conditions in acetonitrile.