【摘要】 本文报导了钴5,15-二（对-取代苯基）八烷基卟啉的合成,并讨论了卟环上不同对苯取代基对叶琳与金属钴配位反应速度的影响规律:推电子基团使反应速度减慢,即H>CH₃>OCH₃>N<_CH₃^CH₃;配位反应变的速率方程均为:（-d[H₂P]）/dt=k表观[H₂P],取代基的影响效应符合Hammatt方程的线性关系。此外,不同取代基卟啉对中心金属钴催化性能的影响是:推电子基增加催化活性,即OCH₃～N<_CH₃^CH₃>CH₃>H。更多还原

【Abstract】 Nine cobalt 5, 15-di（p-substituted phenyl） cctaalkyl porphyrins were synthesized andthe effect of para-phenyl substituents on coordination reaction of porphyrins with cobaltsalt was studied. It has been shown that the reaction follows the rate expression: -dH₂P/dt=K_obh[H₂P] and the reaction rate is influenced by substituents: H>CH₃>OCH₃>N<CH₃ CH₃, corresponding to the Hammett relationship. The experimental results shown thatthe presence of electron-donating substituent improvs the catalytic activity of titlecompound in hydroquinone oxidation reaction.更多还原