It is used to produce 1-ethyl-1-methyl-4-oxo-piperidinium; iodide when reacted with iodomethane and also in the preparation of 3,5-bisarylmethylene-1-ethyl-4-piperidones. Piperidones exhibit anticancer, anti-inflammatory, and antimicrobial activity, and also inhibit the NF-κB signaling pathway. 4-piperidone are important intermediates in alkaloid synthesis and in the preparation of medicinal agents. Mannich-Michael, and aza-Diels-Alder reactions involving an imino dienophile and a conjugated diene and enones have been applied to the synthesis of piperidine derivatives.
