CYCLOADDITION DIPOLAIRE 1,3 DES 4-ARYLIDENE OXAZOL-5-ONES AVEC LA DIPHENYLNITRILIMINE

Article abstract of DOI:10.1016/S0040-4039(00)88860-7

The 1,3-dipolar cycloaddition of 4-arylidene oxazol-5-ones with diphenylnitrilimine is regiospecific and gives one adduct (2).The nature of solvent and the temperature promote the formation of adduct (2) and/or pyrazoline (3).