Molecular recognition of α-amino acid esters with arylporphyrin zinc complexes
摘要:
采用分光光度滴定法研究了20℃甲苯中10种芳基卟啉锌配合物对甘氨酸、α-丙氨酸和亮氨酸甲酯的识别能力。氨基酸-卟啉缔合体的形成取决于大环中的取代模式,通过 1 H NMR 光谱进行检查。发现苯环对位具有羟基的二芳基卟啉的锌络合物对于甘氨酸甲酯是最好的识别剂,而苯环邻位具有羟基的二芳基卟啉的锌络合物对亮氨酸甲酯的识别效果最好。苯环。
Molecular recognition of α-amino acid esters with arylporphyrin zinc complexes
摘要:
采用分光光度滴定法研究了20℃甲苯中10种芳基卟啉锌配合物对甘氨酸、α-丙氨酸和亮氨酸甲酯的识别能力。氨基酸-卟啉缔合体的形成取决于大环中的取代模式,通过 1 H NMR 光谱进行检查。发现苯环对位具有羟基的二芳基卟啉的锌络合物对于甘氨酸甲酯是最好的识别剂,而苯环邻位具有羟基的二芳基卟啉的锌络合物对亮氨酸甲酯的识别效果最好。苯环。
Complexation of Zn Arylporphyrinates with Leucine Methyl Ester
作者:G. M. Mamardashvili、O. E. Storonkina、N. Zh. Mamardashvili
DOI:10.1023/b:ruco.0000030157.98943.43
日期:2004.6
Extra coordination of L-leucine methyl ester with seventeen different Zn arylporphyrinates is studied by spectrophotometric titration and capability of Zn porphyrinates with the active OH groups to recognize LeiOCH(3) in toluene at 20degreesC is determined. The formation of associates of the composition amino acid etherporphyrinate depending on the substituent positions in a macrocycle is studied by the H-1 NMR method. The most strong donor-acceptor bonds between Zn porphyrinate and LeiOCH(3) are observed in the case of pyridine-substituted porphyrins and porphyrins with phenyl rings containing electron-donor substituents in the m-position. The best recognizing capabilities with respect to leucine are shown by Zn porphyrinates with di- and tetra-4-OH-phenyl substitution in the meso-positions of a macrocycle.