OPENING OF THE THREE-MEMBERED RING IN 1,1-DISUBSTITUTED CYCLOPROPANES AS A METHOD FOR THE SYNTHESIS OF FUNCTIONAL DERIVATIVES OF PYRAZOLE AND ISOXAZOLE

Article abstract of DOI:10.1007/BF00523078

The reaction of 1,1-diacylcyclopropanes with hydrazine and hydroxylamine derivatives, which leads to nucleophilic opening of the three-membered ring and the formation of pyrazole and isoxazole derivatives, was studied.The dependence of the occurrence of t