Efficient Microwave-Assisted Synthesis of Some N-Heterocycles Integrated with a Pyrazole Moiety

Resumo

An efficient and rapid synthesis of new heterocyclic compounds via reactions of 1,3-diphenyl-1H-pyrazole-4-carbaldehyde thiosemicarbazone with some carbon electrophiles, namely dimethyl acetylenedicar-boxylate, maleic anhydride, and ω-bromoacetophenone, under microwave irradiation has been developed. The structure of the synthesized compounds was confirmed by their analytical and spectral data.