and a Ni(II) salt, these ligands were transformed into diastereomeric complexes, as a result of the configurational stability of the stereogenic nitrogen atom. Different diastereomeric ratios were observed depending on the substituent R introduced in the starting ligand, and stereochemical assignments were based on X-ray analysis, along with NMR studies and optical rotation measurements.
通过氮原子的烷基化制备了一系列衍生自 α-苯基
乙胺和
2-氨基二苯甲酮的手性
配体。在与甘
氨酸和 Ni(II) 盐反应后,由于立体氮原子的构型稳定性,这些
配体转化为非对映体配合物。根据起始
配体中引入的取代基 R 观察到不同的非对映体比率,立体
化学分配基于 X 射线分析,以及 NMR 研究和旋光度测量。