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
GB8713/42A
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.)
National Oil Products Co
Original Assignee
National Oil Products Co
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 National Oil Products CofiledCriticalNational Oil Products Co
Publication of GB558494ApublicationCriticalpatent/GB558494A/en
558,494. Amino acids; histidine; pantothenic acid. NATIONAL OIL PRODUCTS CO. June 25, 1942, No. 8713. Convention date, July 15, 1941. [Class 2 (iii)] A cyanofatty acid having not more than six carbon atoms, and in which the cyano group is attached to a terminal carbon atom is hydrogenated in the presence of acetic acid, an inorganic acid and a hydrogenation catalyst. The resulting amino fatty acids may be used in the manufacture of pantothenic acid and hist'dine. In place of the cyano fatty acid, a derivative thereof, such as an ester or amide may be used. The propyl, butyl and amyl esters of cyanoacetic acid are mentioned. As inorganic acids, hydrochloric, phosphoric or sulphuric acid may be used. In examples, methyl cyanoacetate, ethyl cyanoacetate and cyanoacetic acid are dissolved in glacial acetic acid and hydrogenated after adding sulphuric acid and platinum oxide. The resulting amino esters are hydrolysed and the sulphuric acid removed by precipitation by means of barium hydroxide. The production of 8-amino butyric acid is mentioned.
GB8713/42A1941-07-151942-06-25Improvements in or relating to the production of amino acids such as alanine
ExpiredGB558494A
(en)
Procedure for the preparation of new acids 4- (4 bifenilil) -4-hydroxy-butirrics, its esteres or lactonas. (Machine-translation by Google Translate, not legally binding)
A process of obtaining acids 4 - alcoximetilen - 6 - oxo - a2 - pipecolinicoso and its esteres and its amidas. (Machine-translation by Google Translate, not legally binding)