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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AGfiledCriticalF Hoffmann La Roche AG
Publication of ES233039A1publicationCriticalpatent/ES233039A1/es
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedimiento para la preparación de ésteres de vitamina A, caracterizado porque se hace reaccionar el alcohol vitamínico A, en presencia de un agente básico con un halogenuro de ácido del producto resultante de la reacción del polietilenglico o de un mono-éter alcohílico de este con un anhídrido de ácido dicarboxílico que contiene de 4 a 5 átomos de carbono.
ES0233039A1956-01-161957-01-15PROCEDIMIENTO PARA LA PREPARACIoN DE ÉSTERES DE VITAMINA A
ExpiredES233039A1
(es)