含氨基酸单元手性脲的对映体识别性能研究
寇新慧, 张玉冰

Study on the Enantiomeric Recognition of Chiral Ureas Containing Amino Acid Units
KOU Xinhui, ZHANG Yubing
表1 不同的手性脲存在条件下,外消旋羧酸CαH的化学位移差值(ΔΔδ)(CDCl3
Table 1 The chemical shift differences (ΔΔδ) of CαH of racemic carboxylic acids in the presence of chiral ureas by 1H NMR in CDCl3
序号 手性羧酸 手性化学位移试剂 谱图 ΔΔδ/Hz
1 L-Phe-U 15.2
2 L-Phe-U 9.6
3 L-Phe-U 2.4
4 L-Phe-U 11.2
5 L-Phe-U 0.64
6 L-Phe-U 2.4
7 L-ALa-U 3.2
8 L-ALa-U 4.0
9 L-ALa-U 3.6