A process for the preparation of nepinalone

摘要

A process for the preparation of 1-methyl-1-[2-(1-N-piperidine)ethyl]-1,2,3,4-tetrahydronaphthalen-2-one hydrochloride (also named Nepinalone) which consists in reacting 2-phenylpropionic acid chloride with ethylene, obtaining 1-methyl-2-tetralone, which is subsequently reacted with 2-chloroethyl-1-N-piperidine, using heptane as the solvent; and subsequent salifying.