Aromatic derivatives of 1H-2,3-dihydropyrazolo[4,5-b]-1,5-diazepine
Aromatic derivatives of 1H-2,3-dihydropyrazole[4,5-b]-1,5-diazepine were obtained by the reaction of 1-phenyl-3-methyl-4,5-diaminopyrazole with chalcones and acetylarenes, catalyzed by acetic or sulfuric acid. The seven-membered ring in these compounds has a conformation of the boat type. The IR, UV, PMR, and mass spectra of the compounds are discussed.