N-cyanoethyl-N-benzylaniline and preparation method and application thereof

The invention relates to N-cyanoethyl-N-benzylaniline and a preparation method and an application thereof. The preparation method includes: reaction step: feeding water, cyanoethylaniline, benzyl chloride and Na2CO3 into the reaction kettle to perform a reaction to obtain a reaction product; standing step: adding water into the reaction kettle, uniformly blending the materials and allowing the mixture to stand for layering, thus obtaining a water phase and an organic phase; distillation step: distilling the organic phase and removing a fraction to obtain a distilled product. According to the preparation method, the prepared N-cyanoethyl-N-benzylaniline is low in content of the benzene chloride and methylbenzene chloride, so that the compound is convenient to use for preparing dyes. The contents of the benzene chloride and methylbenzene chloride of a fabric, which is produced through dyeing with a dye synthesized by the intermediate, N-cyanoethyl-N-benzylaniline, do not exceed the content limits of Oeko-Tex St