N-甲基-4-哌啶酮可作为反应物，用于制备： 螺环哌啶环，通过与丙二腈与亲电试剂或Michael受体反应。 (3E,5E)-1-甲基-3,5-双(苯亚甲基)-4-哌啶酮，通过Michael加成反应与苯甲醛反应，然后发生O-环化/消除连续反应。 N,N′-Dimethylbispidinone，使用双曼尼希冷凝法。 该产品用于国内正常生产使用，不得违反我国所有的政策和法律。 N-Methyl-4-piperidone can be used as a reactant to prepare: Spiropiperidine rings by reacting with malononitrile and electrophiles or Michael acceptors. (3E,5E)-1-Methyl-3,5-bis(phenylmethylene)-4-piperidinone by reacting with benzaldehyde via Michael addition, followed by intramolecular O-cyclization/elimination sequential reactions. N,N′-Dimethylbispidinone by utilizing a double Mannich condensation method. This product is intended for normal production and use in China and must not violate any policies and laws of our country.