(S)-o-N-(N-benzylprolyl)aminobenzaldehyde and (S)-o-N-(N-benzylprolyl)aminoacetophenone as reagents for asymmetric synthesis of threonine
作者:Yuuri N. Belokon'、Irina E. Zel'tzer、Michail G. Ryzhov、Marina B. Saporovakaya、Vladimir I. Bakhmutov、Vasili M. Belikov
DOI:10.1039/c39820000180
日期:——
copper complexes which were hydroxyethylated with acetaldehyde; decomposition of the complexes obtained gave threonine with an optical purity of up to 97–100% and with threo/allo ratios of up to 19 : 1, and the chiral reagents can be recovered and reused with no loss of optical purity of the threonine.
已合成了手性醛和酮,脯氨酸和哌啶-2-羧酸的衍生物,它们的席夫碱与甘氨酸形成铜络合物,并用乙醛将其羟乙基化。分解得到的复合物可得到苏氨酸,其光学纯度高达97–100%,苏氨酸/ allo比高达19:1,手性试剂可以回收并重复使用,而苏氨酸的光学纯度没有损失。