H2 N-OH (CH3)2C=N-OH 羟胺 丙酮肟 CH3 H2 N-NH2 (CH3)2C-N-NH2 0+ 肼 丙酮腙 +H20 CH3 H2 N-NH (CH3)2C=N-NH 苯肼 丙酮苯腙 H2 N-NH (CH3)2C=N NH- NO2 NO2 NO2 2,4-二硝基苯肼 丙酮-2,4-二硝基苯腙 H2 N OH H2 N H2 N H2 N NO2 NH2 NH NH NO2 + 羟胺 肼 苯肼 2，4-二硝基苯肼 N OH NO2 NH2 NH NH NO2 (CH3)2C (CH3)2C N (CH3)2C N (CH3)2C N + H2O 丙酮肟 丙酮腙 丙酮苯腙 丙酮-2，4-二硝基苯腙 C O CH3 CH3