134002-47-4Relevant academic research and scientific papers
Preparation and use of methionylmethionine as feed additive for fish and crustaceans
-
Page/Page column 23, (2015/09/22)
An animal feed mixture containing DL-methionyl-DL-methionine and salts thereof for animals kept in aquacultures is provided. Methods for preparing DL-methionyl-DL-methionine of formula (I) and methods to fractionate the diasteriomeric forms obtained are also provided.
Investigation of reaction mechanism of amino acids and phosphorus trichloride by 31P NMR and ESI-MS/MS
Cao, Yanchun,Cao, Shuxia,Xie, Yali,Zong, Xiangkun,Zhao, Yufen
experimental part, p. 1173 - 1179 (2012/04/23)
The reaction of amino acids and phosphorus trichloride in THF was studied by 31P NMR tracing and ESI-MS/MS. A series of hydridophoranes and cyclic dipeptides were obtained. The reaction presented interesting diversity and the reaction mechanism was proposed. The mechanism suggests that phosphorus plays an important role in the synthesis of amino acid hydridophorane and cyclic dipeptides. The results also show that 31P NMR and ESI-MS/MS are useful tools for the investigation of reaction mechanism. Copyright
PROCESS FOR PREPARING AMINO ACIDS USING THE AMIDOCARBONYLATION REACTION (1)
-
Page/Page column 12-13, (2008/06/13)
The present invention relates to a sequence for the preparation of amino acids, for example alpha amino acids, in particular methionine, by making use of an amidocarbonylation reaction and reuse of the catalyst.
Process for the production of 3,6-bis-(2-methylmercaptoethyl)-2,5-piperazinedione
-
, (2008/06/13)
3,6-BIS-(2-METHYLMERCAPTOETHYL)-2,5-PIPERAZINEDIONE IS PREPARED FROM 5-(2-METHYLMERCAPTOETHYL)-HYDANTOIN IN THE PRESENCE OF WATER AT 100° TO 200°C. at elevated pressure.
