一种双取代马来腈衍生物的合成

Synthesis of a bisubstituted malecyanogen derivative

设计合成了一种不对称的双取代马来腈的席夫碱配合物WG。利用二氨基马来腈与2-羟基-1-萘甲醛反应制备中间体产物2-羟基-1-萘甲醛缩二氨基马来腈(GY),再用GY与4-(二乙氨基)水杨醛缩合得到配体WG。利用核磁共振氢谱,确定了化合物WG和GY的结构。根据紫外吸收光谱,发现WG能够快速高效并且专一识别Cu^2+,研究了WG与Cu^2+之间的相互作用并确定了它们之间的络合比为2∶3,并运用红外谱图结果推测了两者之间的作用方式。因此,该配合物WG在日常检测和分析Cu^2+中具有潜在的应用价值。

An asymmetric double-substituted maleonitrile Schiff base complex WG was designed and synthesized.The intermediate product 2-hydroxy-1-naphthalene formaldehyde diaminomaleonitrile(GY)is prepared by reacting diaminomaleonitrile with 2-hydroxy-1-naphthaldehyde,and then GY and 4-(diethylamino)water condensation of salicylaldehyde gives the ligand WG.The structure of compounds WG and GY was confirmed by1 H NMR.Based on the ultraviolet absorption spectrum,the interaction between the designed compound WG and Cu2+was studied,and the mechanism of action between the two was speculated by the change of infrared spectrum.