Piperidine is a very important heterocyclic compound, and many natural products contain structural units of piperidine. Piperidine ring is the most common heterocycle in medicine. Piperidine can be used to synthesize agricultural chemicals and rubber auxiliaries. Piperidine can also be used to synthesize many important fine chemical intermediates, the introduction of piperidine units into the molecules of fine chemicals has become one of the important means to develop new products. Piperidine derivatives as drug intermediates in the pharmaceutical field have important research value.