N- phenethyl-4-anilino-piperidine prepared

The present invention relates to a method of N- phenethyl-4-anilino preparing a piperidine, the main steps are: in the presence of a catalyst, from N- phenethyl-4-piperidone (its structural formula II shown) with an aniline (structure as shown in formula III) in ethanol, the Raney Ni catalyst, the hydrogenating amination of 50-100 deg.] C, to obtain the objective product. The method of preparing N- phenethyl-4-anilino-piperidine according to the present invention, having a cheap raw materials, less by-products, good product purity, high yield and low cost.