The hydrocyanation route to β- and γ-amino acids. A synthesis of α-methylene-β-alanine
作者:W.Roy Jackson、Patrick Perlmutter、Andrew J. Smallridge
DOI:10.1016/s0040-4039(00)82095-x
日期:1988.1
Hydrocyanation of several phthalimidoalkynes proceeds with good regioselection yielding products which were easily converted into unsaturated and saturated β- and γ-amino acids.
FLAME-INDUCED CARBOXYLATION OF UNSATURATED AMINES IN AN AQUEOUS FORMIC ACID SOLUTION
作者:Shinya Nomoto、Kaoru Harada
DOI:10.1246/cl.1985.145
日期:1985.1.5
When a hydrogen-oxygen flame was kept in contact with an aqueous formicacid solution of unsaturatedamines, carboxylation onto a double bond took place. This reaction revealed to be initiated by addition of a hydrogen atom to the double bond followed by coupling of the resulted substrate radical with a carboxyl radical.
Smirnova,A.A. et al., Journal of Organic Chemistry USSR (English Translation), 1968, vol. 4, p. 2166 - 2174
作者:Smirnova,A.A. et al.
DOI:——
日期:——
Synthesis and resolution of 2-methyl analogues of GABA
作者:Rujee K. Duke、Mary Chebib、David E. Hibbs、Kenneth N. Mewett、Graham A.R. Johnston
DOI:10.1016/j.tetasy.2004.04.002
日期:2004.6
E-4-Amino-2-methylbut-2-enoic acid, (+/-)-4-amino-2-methylbutanoic acid, (+)-(S)- and (-)-(R)-4-amino-2-methylbutanoic acid, which are analogues of the inhibitory neurotransmitter GABA (gamma-aminobutyric acid, 4-aminobutanoic acid), were synthesised from ethyl 2-methyl-4-phthalimidobut-2-enoate, ethyl 2-methyl-4-phthilimidobutanoate, (+)+2R-(3,3-dimethylbutyro-1,4-lactonyl)]-(2S)-methyl-4-phthalimidobutanoate and (-)-[(2R-(3,3-dimethylbutyro-1,4-lactonyl)]-(2R)-methyl-4-phthalimidobutanoate, respectively. The assignment of the absolute configuration of (+)-(S)- and (-)-(R)-4-amino-2-methylbutanoic acid was based on the X-ray crystallographic structure of the (+)-(R,S)-diastereoisomer, and direct comparison of specific rotations with the published data for (-)-(R)-4-amino-2-methylbutanoic acid. (C) 2004 Elsevier Ltd. All rights reserved.
Colonge,J.; Pouchol,J.-M., Bulletin de la Societe Chimique de France, 1962, p. 598 - 603