The present invention relates to the improved process for the preparation of 3,5-bis-(1-cyano-1-methylethyl)benzylbromide free from impurities such as 2,2-(5-methyl-1,3-phenylene)-bis(2-methylpropionitrile) and 3,5-bis(1-cyano-1-methylethyl)-α,α-diibromotoluene.
本发明涉及一种改进的工艺,用于制备不含杂质如2,2-(5-甲基-1,3-苯基)-双(2-甲基
丙腈)和3,5-双(1-
氰基-1-甲基乙基)-苄
溴化物的过程。