13795-40-9Relevant academic research and scientific papers
Asymmetric Induction during the Aminolysis of 5(4H)-Oxazolones from N-Benzoyl Amino Acids; Almost Specific Formation of One Epimer in the Reaction of the Oxazolone from N-Benzoyl-DL-t-leucine with Methyl L-Prolinate
Miyazawa, Toshifumi,Otomatsu, Toshihiko,Higashi, Katsutoshi,Yamada, Takashi,Kuwata, Shigeru
, p. 4161 - 4163 (2007/10/02)
Asymmetric induction during the aminolysis of 5(4H)-oxazolones from N-benzoyl amino acids was investigated using a series of amino acid esters as amine nucleophiles.The reaction of the oxazolone from N-benzoyl-DL-t-leucine with methyl L-prolinate was found to produce the diastereomeric D-L isomer, almost specifically, under appropriate conditions.
ASYMMETRIC HYDROGENATION OF DEHYDROVALYL PEPTIDES
Calderon, S.,Cativiela, C.,Mayoral, J. A.,Melendez, E.
, p. 435 - 438 (2007/10/02)
Both N-benzoyl-Δ-valyl-L and D-phenylalanine methyl esters were hydrogenated at atmospheric pressure in quantitative yield, using 5percent Pd/C suspended in n-propanol.Diastereoselectivity is low but in line of expectations.
Chiral Environments for Asymmetric Hydrogenation of Model Didehydro-Amino Acid Residues
Davies, John S.,Eaton, Mark C.,Ibrahim, M. Nazar
, p. 1813 - 1814 (2007/10/02)
Nmr and glc analysis of diastereoisomeric mixtures of dipeptides has been used to study the asymmetric hydrogenation of model benzoyldidehydro- and trifluoroacetyldidehydro-dipeptide methyl esters.Chiral enhancement of one isomeric form appears to be inde
