Taking 2-butanone and benzaldehyde as starting materials, the intermediate 3-methyl-4-phenyl-3-en-2-butenone was obtained by acid catalysis, and then 3-methyl-4-phenyl-2-butanone prepared by reduction and purification, the purity of its gas phase and high-performance liquid phase is greater than 99%, and the raw materials for the preparation of the raw materials are simple and easy to obtain, the steps are simple, and the raw materials for the production of 2-butanone, the solvents used in the reaction can achieve 90% recycling, and after treatment, the waste liquid discharge has little environmental pollution, and industrialized production has been achieved. Butanone, the solvents used in the reaction can achieve 90% recycling, and after post-treatment, the waste liquid discharge is very little pollution to the environment, realizing the industrialized production.
