| 摘要 |
A process for the preparation of optically active 2-(4-methoxyphenoxy)propionic acid of at least 75 percent enantiomeric excess of the desired optical isomer comprised of contacting 2-chloropropionic acid or a lower alkyl ester or an alkali metal salt thereof, having an optical purity greater than 85 percent of the opposite configuration, with from 3 to 10 molar equivalents of 4-methoxyphenol in an aqueous base.
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