APPLICATIONS OF THE FLUORINATED 1,3-DIPOLAR COMPOUNDS AS THE BUILDING BLOCKS OF THE HETEROCYCLES WITH FLUORINE GROUPS. PART XII. SYNTHESIS OF TRIFLUOROMETHYLISOXAZOLINES AND THEIR REARRANGEMENT INTO TRIFLUOROMETHYLAZIRIDINES

Article abstract of DOI:10.1016/S0022-1139(00)82735-9

N-Methyl-C-trifluoromethylnitrone cycloadded with various alkynes to give 3-trifluoromethyl-4-isoxazolines.The isolated isoxazolines further underwent the valence rearrangement into 2-trifluoromethylaziridines under more drastic conditions.Unusual stabili