1,3-Dipolar Cycloadditions of Some Nitrilimines and Nitrile Oxides to 3-N,N-Dimethylamino-1-oxopropene Derivatives
Abstract
An efficient synthesis of some novel pyrazoles 8a–j, 13a–e, 18a,b, isoxazoles 26a–g, pyrazolo[3,4-d]pyridazines 9a–d and isoxazolo[3,4-d]pyridazines 27a–dvia 1,3-dipolar cycloaddition reactions is reported.