Synthesis of unsymmetrical dinucleating ligands bearing nitrogen and oxygen donor atoms
作者:David E. Fenton、George Papageorgiou
DOI:10.1016/0040-4020(96)00222-0
日期:1996.4
The synthesis of unsymmetrical dinucleating ligands bearing nitrogen and oxygen donor atoms is described. The Schiff-base condensation of functionalised salicylaldehyde derivatives with primary amines gave rise to unsymmetrical unsaturated ligands, whereas condensation with secondary amines followed by in situ reduction of the iminium species with sodium borohydride, led to the formation of unsymmetrical
描述了带有氮和氧供体原子的不对称双核配体的合成。功能化水杨醛衍生物与伯胺的席夫碱缩合产生不对称的不饱和配体,而与仲胺的缩合随后用硼氢化钠原位还原亚胺类,导致形成不对称的饱和配体。后者也通过4-氯间苯二酚的曼尼希串联反应制备。