97-78-9Relevant articles and documents
A high-purity N - lauroyl sarcosine preparation method
-
Paragraph 0018-0022, (2019/07/04)
The invention discloses a high-purity N - lauroyl sarcosine preparation method, comprises the following steps: a) added to the reaction kettle in the sarcosine sodium solution, control under certain temperature and PH, within a certain time dropping undecanoyl and solvent of the mixed solution; b) after dropping, to step a) of the hydrochloric acid is added in the reaction solution, layered; c) organic phase cooling to a certain temperature crystallization, centrifugal, decompression drying to obtain high-purity N - lauroyl sarcosine. The adoption of the invention the resulting high purity N - lauroyl sarcosine used for preparing N - lauroyl sarcosine sodium does not contain the inorganic [...], the content is high, the reaction of the invention high yield, the operation is simple, and is suitable for industrial production.
Method for synthesizing N-fatty acyl group amino acid
-
Paragraph 0030; 0031; 0032; 0033, (2016/10/07)
The invention discloses a method for synthesizing N-fatty acyl group amino acid. With fatty acid ester and amino-nitrile adopted as the raw materials, and with sodium methylate or sodium ethoxide adopted as the catalyst, the method comprises the following steps: heating under nitrogen protection; adjusting the pH value to be acid; after refrigeration, filtering the reaction liquid; carrying out reduced pressure distillation on the obtained solid; collecting the cut fraction, and placing in alkali liquor for hydrolysis, so as to obtain N-fatty acyl group amino acid salt; or collecting the cut fraction, and carrying out acidification to prepare N-fatty acyl group amino acid. According to the method, amino-nitrile and fatty acid ester are adopted as the raw materials to prepare high purity N-fatty acyl group amino acid, the raw materials are cheap, the equipment is simple, and waste water generated during the production process is less.
Palladium-catalyzed amidocarbonylation - A new, efficient synthesis of N-acyl amino acids
Beller,Eckert,Vollmuller,Bogdanovic,Geissler
, p. 1494 - 1496 (2007/10/03)
For the first time palladium catalysts have been used successfully for the amidocarbonylation reaction. The activity of the cobalt catalysts that were used exclusively beforehand has now been exceeded by an order of magnitude, and the reaction can be performed under far milder conditions. Palladium-catalyzed amidocarbonylation reactions can now be used for the synthesis of a much wider range of N-acyl amino acids.