Amidoalkylation of Pyrazine-2,3-dicarbonitrile by the Radical Generated from N-Alkanoylanilinoalkanoic Acid
作者:Masaru Tada、Reiko Furuse、Hiroko Kashima
DOI:10.3987/com-91-5931
日期:——
N-Alkanoylanilinoacetic acid and 2-N-alkanoylanilinopropionic acid gave N-alkanoylanilinomethyl radical and 1-N-alkanoylanilinoethyl radical respectively by the peroxodisulfate oxidation catalized by silver ion. The former radical reacts with pyrazine-2,3-dicarbonitrile to give both monosubstitution product (6) and disubstitution product (7), whereas the latter radical gives only monosubstitution product due to the steric hindrance for the second radical substitution.
PREPARATION OF PHENYL ALANINES BY HYDROGENATION OF PHENYL SERINES
申请人:ALKALOIDA VEGYéSZETI GYáR
公开号:EP0164389B1
公开(公告)日:1987-04-01
[EN] PREPARATION OF PHENYL ALANINES BY HYDROGENATION OF PHENYL SERINES
申请人:ALKALOIDA VEGYÉSZETI GYÁR
公开号:WO1985002609A1
公开(公告)日:1985-06-20
(EN) Large scale process for the preparation of 3-phenyl alanine derivatives of general formula (I), wherein R stands for hydrogen or C1-4 alkyl, R2 stands for hydrogen or CO-R4 - wherein R4 stands for hydrogen or C1-4 alkyl, aralkyl, or aryl, R5 stands for hydrogen or -CO-R4 - wherein R4 is as given above.(FR) Procédé de préparation à grande échelle de dérivés de 3-phényl alanine de formule générale (I) où R représente un hydrogène ou un alcoyle comportant de 1 à 4 C, R2 représente un hydrogène ou CO-R4, où R4 représente un hydrogène ou un alcoyle comportant de 1 à 4C, un aralcoyle ou un aryle, R5 représente un hydrogène ou -CO-R4, où R4 à la même signification que ci-dessus.