ES431195A1 - Procedure for the preparation of etereopolicarboxilic acids. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of etereopolicarboxilic acids. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaAfiledCriticalHenkel AG and Co KGaA
Priority to ES431195ApriorityCriticalpatent/ES431195A1/en
Publication of ES431195A1publicationCriticalpatent/ES431195A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the preparation of etherepolycarboxylic acids, characterized in that ethereocarboxylic acids of the general formula are reacted with carbon dioxide ** (see formula) ** In which R represents an alkyl radical of 1 to 22 carbon atoms, which may be straight or branched chain and be substituted by hydroxyl or carboxyl groups or interrupted by oxygen atoms and R 'represents hydrogen or a lower alkyl radical of 1 to 4 carbon atoms, in the form of its alkali metal salts, at temperatures of 200 to 350ºC and preferably of 250 to 300º c, under pressure, in the presence of alkali metal alcoholates and optionally of heavy metal catalysts, as well as indifferent diluents, and eventually converted in a known manner into the free acid the formed alkaline salt of the etherealcarboxylic acid. (Machine-translation by Google Translate, not legally binding)
ES431195A1974-10-211974-10-21Procedure for the preparation of etereopolicarboxilic acids. (Machine-translation by Google Translate, not legally binding)
ExpiredES431195A1
(en)
A procedure for the manufacture of phenylciclo- hexencarboxylic acids and fenilciclohexanocarboxilic acid. (Machine-translation by Google Translate, not legally binding)