Asymmetric synthesis of meso- and (2R,4R)-2,4-diaminoglutaric acids
摘要:
In order to synthesize meso- and (2R,4R)-2,4-diaminoglutaric acids, a synthetic route has been developed starting from Garner's aldehyde and where the key steps are the asymmetric hydrogenations of (E)- and (Z)-(R)-3-tert-butoxycarbonyl-2,2-dimethyl-4-[2'-(benzamido)-2'-(methoxycarbonyl)ethenyl]-1,3-oxazolidine, under heterogeneous conditions, followed by oxidation and further hydrolysis. A model is proposed to explain the stereochemical outcome of the asymmetric hydrogenation. (C) 1997 Elsevier Science Ltd.
Synthesis of L-ornithines stereospecifically deuterated at C-3
作者:Jack E. Baldwin、Kirsten D. Merritt、Christopher J. Schofield
DOI:10.1016/s0040-4039(00)79263-x
日期:1993.6
(2S, 3S)-[2,3-H-2(2)]-Ornithine and (2S, 3R)-[3-H-2(1)]-ornithine were prepared with high stereoselectivity via asymmetric reduction catalysed by bicyclo[2.2.1]hepta-2,5-diene}(R)-1,2-bis(diphenylphosphino)propane}rhodium (1) trifluoromethanesulphonate [(R)-Rh-Prophos].
Sun, De-Qun; Sun, Li; Luo, Min, Asian Journal of Chemistry, 2012, vol. 24, # 4, p. 1731 - 1734
作者:Sun, De-Qun、Sun, Li、Luo, Min
DOI:——
日期:——
KU, BONCHUL;OH, DONG YOUNG, TETRAHEDRON LETT., 29,(1988) N 35, C. 4465-4466
作者:KU, BONCHUL、OH, DONG YOUNG
DOI:——
日期:——
Facile synthesis of α-phosphorylated α-amino acids
作者:Bonchul Ku、Dong Young Oh
DOI:10.1016/s0040-4039(00)80523-7
日期:1988.1
Various α-phosphorylated α-aminoacid derivatives were synthesized conveniently by the reaction of methyl α-methoxyhippurate and methyl α-methoxy-N-benzyloxycarbonyl-glycinate with phosphites under the Lewis acid. Hydrolysis of () with TMSI gave 2-phosphonoglycine in quantitative yield.
Asymmetric synthesis of meso- and (2R,4R)-2,4-diaminoglutaric acids
作者:Alberto Avenoza、Carlos Cativiela、Jesús M. Peregrina、María M. Zurbano
DOI:10.1016/s0957-4166(97)00044-x
日期:1997.3
In order to synthesize meso- and (2R,4R)-2,4-diaminoglutaric acids, a synthetic route has been developed starting from Garner's aldehyde and where the key steps are the asymmetric hydrogenations of (E)- and (Z)-(R)-3-tert-butoxycarbonyl-2,2-dimethyl-4-[2'-(benzamido)-2'-(methoxycarbonyl)ethenyl]-1,3-oxazolidine, under heterogeneous conditions, followed by oxidation and further hydrolysis. A model is proposed to explain the stereochemical outcome of the asymmetric hydrogenation. (C) 1997 Elsevier Science Ltd.