catalysts originated from metalloporphyrins (MTSPP; M = Co, Fe, and Mn), and hydrotalcite have been synthesized, characterized, and investigated in the aerobic oxidation of alcohols in the presence of isobutyraldehyde. The designed catalysts exhibited excellent activity, broad applicable scope, and good stability in the oxidation. The effect of surface basicity on the catalytic performance has been studied
迫切需要开发经济,环境友好且易于回收的高活性和选择性催化体系。合成,表征和研究了由
金属
卟啉(
MTSPP; M = Co,Fe和Mn)和
水滑石组成的双功能杂化催化剂,在
异丁醛存在下对醇进行好氧氧化。设计的催化剂表现出优异的活性,广泛的适用范围和良好的氧化稳定性。已经详细研究了表面碱性对催化性能的影响。研究结果表明,
水滑石的表面碱性不仅能保护
金属
卟啉分子,而且还有助于提高其催化活性和醛的选择性,并在催化体系中观察到协同作用。根据催化结果以及Hammett和H提出了一种涉及高价
钴-羰基
卟啉中间体形成的反应机理2 18 O实验。