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.)
Expired
Application number
GB9533/38A
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F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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Publication date
Application filed by F Hoffmann La Roche AGfiledCriticalF Hoffmann La Roche AG
Publication of GB488702ApublicationCriticalpatent/GB488702A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Alkyl esters of b -acetamino butyric acid, of which the alkyl group contains not more than 3 carbon atoms, are prepared by catalytic hydrogenation of esters of b -acetamino crotonic acid. The hydrogenation is effected at atmospheric or raised pressures and in the presence or absence of solvents. In examples the methyl, ethyl, n- and iso-propyl esters of b -acetamino crotonic acid are hydrogenated in the presence of nickel or palladium. Methyl and ethyl alcohols are used as solvents. The products are completely miscible with water and are useful for preparing solutions of medicinal substances.
GB9533/38A1937-05-291938-03-29Process for the manufacture of esters of ª‰-acetamino butyric acid
ExpiredGB488702A
(en)
A process for the production of extracts for direct application as medicaments and also for increasing the vitamin content of foodstuffs, medicaments and the like
Procedure for the preparation of auxiliary agents of breading and agents for the treatment and conservation of food. (Machine-translation by Google Translate, not legally binding)