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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Publication date
Application filed by Henkel AG and Co KGaAfiledCriticalHenkel AG and Co KGaA
Publication of ES233447A1publicationCriticalpatent/ES233447A1/es
Procedimiento para la preparación de ácidos pirrol-alfa.alfa-dicarboxílicos o bien de sus sales y derivados caracterizado porque se hace reaccionar pirrol o pirroles beta-substituidos o bien ácidos pirrol alfa-monocarboxílicos a temperatura aumentada y en presencia de materias de acción alcalina, con dióxido de carbono,transformando la sal asi obtenida, eventualmente en el ácido libre o en su derivados.
ES0233447A1956-02-071957-02-06PROCEDIMIENTO PARA LA PREPARACIoN DE áCIDOS PIRROL-ALFA, ALFA'-DICARBOXILICOS
ExpiredES233447A1
(es)