| 摘要 |
Process for obtaining an arylacetic acid of general formula (I): Ar-CHR-COOH (I) in which R=H, C1-C4 alk, Ar=2-thienyl, 3-thienyl, 1-naphthyl, 2-naphthyl, 1-(2-methoxy naphthyl), 3,4-methylenedioxy phenyl or phenyl of general formula (II): (* CHEMICAL STRUCTURE *) (II) in which R1=H, OH or C1-C4 alkoxy, R2=H, C1-C4 alk, C1-C4 alkoxy or OH, as well as their alkali metal salts, by reaction in a solvent of the corresponding arylglycolic acid of general formula (III): Ar-CR(OH)-COOH (III) or one of its alkali metal salts with a hydrogen donor agent chosen from the group constituted by: formic acid, or one of its alkali metal salts, phosphonic acid, phosphinic acid, or one of their alkali metal salts, in the presence of a hydrogen transfer catalyst, which if desired is isolated or salified, and use for the preparation of certain acids of formula (I).
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