Process for the preparation of .alpha.-hydroxymethylene arylacetic acid
AssigneeDynamit Nobel Aktiengesellschaft
InventorsFritz Englaender, Moustafa El-Chahawi, Wilhelm Vogt
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Abstract
New process for making esters of .alpha.-hydroxymethylene arylacetic acid from the corresponding arylacetic acid ester by conversion with an alkali alcoholate and carbon monoxide. The resulting hydroxy methylene compound can be obtained from the resulting alkali salt by release with an acid.
Claims5
Process for the manufacture of alkyl esters of .alpha.-hydroxymethylene arylacetic acids, which comprises reacting the corresponding arylacetic acid alkyl ester, of the formula R.sub.1 CH.sub.2 CO.sub.2 R.sub.2, in which R.sub.1 is an aryl radical and R.sub.2 is straight-chain or branched alkyl, with carbon monoxide in the presence of an alkali alcoholate.
Dependencies are inferred from the claim text.