苯丙氨酸铁卟啉配合物的合成及其催化环氧化性质

Synthesis and Catalytic Properties of Tailed Phenylalanine Porphyrin Iron Complex

文章合成了两个新的手性卟啉配合物——尾式L(D)-苯丙氨酸铁卟啉,并通过紫外光谱和质谱对其结构进行了表征。利用这两个化合物进行了苯乙烯的催化环氧化研究,分别考察了不同溶剂和不同轴向配体的影响。实验结果显示尾式L(D)-苯丙氨酸铁卟啉催化苯乙烯氧化的产物不具有对映体选择性。在不同溶剂中的环氧化物产率:乙腈>二氯甲烷>甲醇。在不同轴向配体作用下的产率为:吡啶>4-硝基咪唑>咪唑。

Two new chiral porphyrin complexes named tail L （D） - phenylalanine iron（Ill） porphyrin were synthesized and characterized by mass spectrometry and ultraviolet-visible spectroscopy. Catalytic epoxidation of styrene with these iron porphyrins were investigated in different solvents and different axial ligands conditions. Experimental results showed tail L （D） - phenylalanine iron（Ill） porphyrin exhibited no enantioselectivity in the catalytic epoxidation of styrene. The epoxidation yield in different solvents flows an order of acetonitrile〉 dichloromethane 〉 methanol; while the yield order in the presence of different axial ligands is pyridine〉 4-nitro- imidazole〉 imidazole.