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C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
C07C67/29—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by introduction of oxygen-containing functional groups
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FR792250A1959-04-161959-04-16Procédé de préparation de l'anhydride d'acide acétylsalicylique
ExpiredFR1231832A
(fr)