METHOD FOR PURIFYING ETHYL 4-(1-IMIDAZOLYLMETHYL)CINNAMATE

摘要

PURPOSE: Provided is a method for purifying ethyl 4-(1-imidazolylmethyl)cinnamate which conducts the purifying effectively and economically, and makes derivatives of cinnamic acid in high purity as well as high yield. CONSTITUTION: A method for purifying ethyl 4-(1-imidazolylmethyl)cinnamate comprises the steps of: crystallizing ethyl 4-(1-imidazolylmethyl)cinnamate expressed by the formula(1), in an organic solvent by adding hydrogen chloride thereto to make ethyl 4-(1-imidazolylmethyl)cinnamate hydrochloride expressed by the formula(2); and extracting the ethyl 4-(1-imidazolylmethyl)cinnamate hydrochloride from the organic solvent to purify ethyl 4-(1-imidazolylmethyl)cinnamate expressed by the formula(1).