Synthesis of (2S,3R)[3-2H1]- and (2S,3S)[2,3-2H2]-serines and (1R)[1-2H1]- and (1S,2RS)[1,2-2H2]-2-aminoethanols
作者:David Gani、Douglas W. Young
DOI:10.1039/c39820000867
日期:——
(2S,3R)[3-2H1]-and (2S,3S)[2,3-2H2]-serines have been prepared by a route which includes a Baeyer–Villiger oxidation involving rearrangement of a secondary chiral centre; a 1H n.m.r. assay has been developed to assess stereochemical integrity of both prochiral centres in 2-aminoethanol and this shows that decarboxylation of each sample of serine proceeds without loss of chirality at C-3, yielding (1R)[1-2H1]-and
(2小号,3 - [R)[3- 2 ħ 1 ] -和(2小号,3小号)[2,3- 2 ħ 2 ] -serines已经制备通过包括拜尔-维利格氧化,涉及的重排的路径次要手性中心;已开发出一种1 H nmr测定方法来评估2-氨基乙醇中两个前手性中心的立体化学完整性,这表明丝氨酸的每个样品的脱羧过程均在C-3进行,而没有手性损失,产生(1 R)[ 1-2 H 1 ]-和(1 S,2 RS)-[1,2- 2分别是H 2 ] -2-氨基乙醇。