ChemInform Abstract: Studies with 3‐Oxoalkanenitriles: Synthesis of New Pyrazolo[1,5‐a]pyrimidines and Pyrazolo[5,1‐c]‐1,2,4‐triazines and Reactivity of 4‐Phenyl‐3‐oxobutanenitrile Derivatives.

Abstract

1997 ring closure reactions ring closure reactions O 0130 -061Studies with 3-Oxoalkanenitriles: Synthesis of New Pyrazolo[1,5a]pyrimidines and Pyrazolo[5,1-c]-1,2,4-triazines and Reactivity of 4-Phenyl-3-oxobutanenitrile Derivatives.-The synthesized 4phenyl-3-oxobutanenitrile (III) is identified by isolation of its aminomethylidene and hydrazone derivatives (V) and (IX). Both compounds prove versatile starting materials for the synthesis of a variety of polyfunctionally substituted heterocycles. -(ABDEL KHALIK, M. M.; J.