申请人:Toray Fine Chemicals Co., Ltd.
公开号:EP2075241A1
公开(公告)日:2009-07-01
Provided is a method for producing a biphenyl derivative, with an industrially high yield and excellent productivity, by use of a raw material which is low in cost and toxicity. More specifically, the method for producing the biphenyl derivative represented by general formula (1) is characterized in that a chlorine atom in a benzene derivative represented by general formula (2) reacts with magnesium metal to convert the benzene derivative into a Grignard reagent, and then the Grignard reagent is subjected to a coupling reaction in the presence of a catalyst and a dichloropropane:
and (wherein A represents at least one selected from alkyl groups, alkoxy groups, alkoxymethyl groups, a vinyl group, phenyl groups and chlorine, and n represents an integer of 1 to 4).
本发明提供了一种利用低成本、低毒性的原材料生产联苯衍生物的方法,该方法具有工业高产率和出色的生产率。更具体地说,通式(1)代表的联苯衍生物的生产方法的特点是:通式(2)代表的苯衍生物中的氯原子与金属镁反应,将苯衍生物转化成格氏试剂,然后格氏试剂在催化剂和二氯丙烷存在下进行偶联反应:
和(其中 A 代表至少一个选自烷基、烷氧基、烷氧基甲基、乙烯基、苯基和氯的基团,n 代表 1 至 4 的整数)。