ES233447A1 - Procedure for the preparation of pirrol-alpha, alpha'-dicarboxylic acids (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of pirrol-alpha, alpha'-dicarboxylic acids (Machine-translation by Google Translate, not legally binding)
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Application filed by Henkel AG and Co KGaAfiledCriticalHenkel AG and Co KGaA
Publication of ES233447A1publicationCriticalpatent/ES233447A1/en
Process for the preparation of pyrrole-alpha.alpha-dicarboxylic acids or their salts and derivatives characterized in that pyrrole or beta-substituted pyrroles or pyrrole-alpha-monocarboxylic acids are reacted at increased temperature and in the presence of alkaline-acting materials, with carbon dioxide, transforming the salt thus obtained, eventually into the free acid or its derivatives. (Machine-translation by Google Translate, not legally binding)
ES0233447A1956-02-071957-02-06Procedure for the preparation of pirrol-alpha, alpha'-dicarboxylic acids (Machine-translation by Google Translate, not legally binding)
ExpiredES233447A1
(en)
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