基于2-羟基1-萘甲醛缩甘氨酸席夫碱镍配合物的合成及其高效构建C■C键（英文）

A New Schiff base Ni(Ⅱ)Complex Based on 2-hydroxy-1-naphthaldehyde and Glycine:Synthesis and Highly Effective Construction of C■C Bonds

合成和表征了一个新颖的2-羟基1-萘甲醛缩甘氨酸席夫碱镍配合物[Ni(Py)3(2-O-C10H5CH■NCH2CO2)]2·3H2O,并通过X-单晶衍射分析、粉末衍射及元素分析确定了其结构.配合物为二核的镍配合物结构,晶体为三斜晶系,P-1空间群,Z=2,a=11.023(19)?,b=13.30(2)?,c=18.33(3)?,V=2629(8)?3,F(000)=1130,Dc=1.369g/cm3,μ=0.778mm-1,R=0.1102,wR=0.2892.值得注意的是,配合物进一步应用于克脑文格缩合反应中,发现配合物在构建C■C双键的反应中具有有效的非均相催化活性(产率高达99%),并且催化剂可以循环四次后活性没有明显的损失.

A novel 2-hydroxy-1-naphthaldehydeglycine Schiff base nickel(II)complex[Ni(Py)3(2-O-C10 H5 CH=NCH2 CO2)]2·3 H2 O was synthesized and characterized by single crystal X-ray diffraction(SCXRD),power X-ray diffraction(PXRD),and elemental analyses.Complex exhibits a binuclear nickel(II)structure and it crystallizes in the Triclinic system,space group P-1 with Z=2,a=11.023(19)?,b=13.30(2)?,c=18.33(3)?,V=2629(8)?3,F(000)=1130,Dc=1.369 g/cm3,μ=0.778 mm-1,R=0.1102 and wR=0.289 2.Remarkably,the Schiff base nickel complex was further investigated as catalyst in the Knoevenagel condensation,and found that complex show effective heterogeneous catalytic activities(yield up to 99%)for constructing C=C bonds and the catalyst can be recycled without losing activities after four runs catalytic cycle.