Heterocyclic synthesis using nitrilimines: Part 14. Synthesis of new pyrazole derivatives

Abstract

A new series of 1, 3, 4, 5-tetrasubstituted pyrazoles have been synthesized by the 1, 3-dipolar cycloaddition of suitable nitrilimines to 3-propylidene and 3-benzylidene-phthalide. Both analytical and spectroscopic data of all the synthesized compounds are in full agreement with the proposed structures. © tübi̇tak.