Heterocyclic Synthesis Using Nitrilimines: Part 16.Synthesis of Some New Pyrazole and Spiropyrazoline Derivatives

摘要

1,3-Dipolar cycloaddition of the nitrilimines with the 2-propylidene-3-coumaranone afforded the corresponding pyrazole derivatives. Similar reactions of nitrilimines with 3-ethylidene-1-indanone furnished spiropyrazoline derivatives. The spectral data of the synthesized compounds are in full agreement with its molecular structure.