hydroxide (IVa, Y = NOH, NNH2, NNHPh, NH, O) are discussed. The latter products are possibly formed by intramolecular 1,5-hydrogen transfer. Phenacyl methylene protons of 3,5-diphenyl-5-phenacyl-2-pyrazolines (IX, Z = NH or NPh) are magnetically non-equivalent, unlike those of 3,5-diphenyl-5-phenacyl-2-isoxazoline (IX, Z = O).
2,4,6-三苯基吡啶鎓盐与碱
金属
氰化物,二烷基胺或醇盐(IIIa,X = CN,NR 2,OR)以及
羟胺,
肼,苯
肼,
氨或氢氧化物(IVa,Y =讨论了NOH,NNH 2,NNHPh,NH,O)。后者的产物可能是通过分子内1,5-氢转移形成的。3,5
-二苯基-5-苯甲酰基-2-
吡唑啉(IX,Z = NH或NPh)的苯甲基亚甲基质子在磁性上不等价,与3,5
-二苯基-5-苯甲酰基-2-
异恶唑啉(IX ,Z = O)。