Opitcally-active alpha amino acid prepn - from imines and oximes of glyoxy-lic acid and alpha-keto-acids
Номер патента: FR2188597A5
Опубликовано: 18-01-1974
Автор(ы):
Принадлежит: ERAP ELF ENTR RECH ACTIV PETRO
Опубликовано: 18-01-1974
Автор(ы):
Принадлежит: ERAP ELF ENTR RECH ACTIV PETRO
Реферат: Title amino acids of formula (I): are prepd by reaction of X-N=C(R)-COOR2 with R3 Y in the presence of a transition metal complex MxLyZz (where R=H or methyl; R2=aliphatic hydrocarbon cycloaliphatic or aromatic radical; R1, R3=H or a hydrocarbon radical (opt. substd by functional gps), X = hydrocarbon radical, hydroxy or carboxyl gp. Y=Cl, Br or I; L=stabilising ligand; Z=anion, M=Gp. VIII transition metal, x, y=1-12 and z=0-12).
PROCESS FOR PREPARATION OF .alpha.-ALKYL AMINO ACIDS
Номер патента: CA1240700A. Автор: Sandor Karady,Leonard M. Weinstock,Joseph S. Amato. Владелец: Merck and Co Inc. Дата публикации: 1988-08-16.