申请人:Himmler Thomas
公开号:US20080234501A1
公开(公告)日:2008-09-25
The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (III), which is then rearranged to give a mixture of the compounds (IV) and (V), which is then hydrolyzed to 2,5-dimethylphenylacetic acid.
本发明涉及一种制备2,5-二甲基苯乙酸的方法,通过将对二甲苯与氯乙酰氯反应形成2-氯-1-(2,5-二甲基苯基)乙酮,然后与式(II)的化合物反应得到式(III)的化合物,然后重排得到化合物(IV)和(V)的混合物,最后水解得到2,5-二甲基苯乙酸。