The invention provides novel catalyst compositions, useful in the oxidation of hydrocarbons with air or oxygen to form hydroxy-group containing compounds and in the decomposition of hydroperoxides to form hydroxy-group containing compounds. The catalysts comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position., The compositions are prepared by halogenating a transition metal complex of a porphyrin. In one embodiment, a complex of a porphyrin with a metal whose porphyrin complexes are not active for oxidation of hydrocarbons is halogenated, thereby to obtain a haloporphyrin complex of that metal, the metal is removed from the haloporphyrin complex to obtain the free base form of the haloporphyrin, and a metal such as iron whose porphyrin complexes are active for oxidation of hydrocarbons and for the decomposition of alkyl hydroperoxides is complexed with the free base to obtain an active catalyst for oxidation of hydrocarbons and decomposition of alkyl hydroperoxides.
本发明提供了新型催化剂组合物,可用于碳氢化合物与空气或
氧气的氧化反应以形成含羟基化合物,以及氢过氧化物的分解反应以形成含羟基化合物。这些催化剂包括在
卟啉环上具有 1 至 12 个卤素取代基的
卟啉环过渡
金属络合物,其中至少一个卤素位于中间位置,和/或催化剂在中间位置不含芳基。在一个实施方案中,将
卟啉与一种
金属的络合物卤化,该
金属的
卟啉络合物对碳氢化合物的氧化没有活性,从而得到该
金属的卤代
卟啉络合物,将该
金属从卤代
卟啉络合物中除去,得到卤代
卟啉的游离碱形式、将
卟啉络合物对碳氢化合物的氧化和烷基氢过氧化物的分解具有活性的
金属(如
铁)与游离碱络合,得到一种对碳氢化合物的氧化和烷基氢过氧化物的分解具有活性的催化剂。