Site- and Regioselectivity of the Reaction of Hydrazonoyl Chlorides with Perimidine Ketene Aminal. Antimicrobial Evaluation of the Products

摘要

Reaction of hydrazonoyl chlorides with perimidine ketene aminal derivative in dioxane in the presence of triethylamine afforded either pyrrolo[1,2-a]perimidines or pyrazolyl perimidines depending on the type of hydrazonoyl chloride used. The reaction was found to be site- and regioselective according to the suggested mechanism. The structure of the newly synthesized compounds was established on the basis of spectral data and elemental analyses. In addition, the antimicrobial activity of the newly synthesized compounds was evaluated, and the results showed moderate activity of all compounds against the bacterial species.