申请人:Taisho Pharmaceutical Company, Ltd.
公开号:US04433160A1
公开(公告)日:1984-02-21
A process for producing an .alpha.-arylalkanoic acid ester represented by the general formula ##STR1## wherein Ar represents an aryl group which may optionally be substituted, and R.sup.1 and R.sup.2, independently from each other, represent a lower alkyl group, which comprises reacting a Grignard reagent prepared from an aryl halide of the general formula Ar--X.sup.1 (II) wherein Ar is as defined above and X.sup.1 represents a halogen atom, and magnesium, with an .alpha.-haloalkanoic acid ester of the general formula ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, and X.sup.2 represents a halogen atom, said reaction of the Grignard reagent with the .alpha.-haloalkanoic acid ester of general formula (III) being carried out in the presence of a nickel compound.
一种制备α-芳基烷酸酯的方法,其通式如下:其中Ar代表可能被取代的芳基基团,R1和R2分别独立地代表低碳基团,包括反应由通式Ar-X1(II)表示的芳基卤化物制备的Grignard试剂(其中Ar如上定义,X1代表卤素原子)和镁,与通式(III)表示的α-卤代烷酸酯反应(其中R1和R2如上定义,X2代表卤素原子),在镍化合物的存在下进行。