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Mechanism of manganese porphyrin-catalyzed oxidation of alkenes. Role of manganese(IV)-oxo species
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 1993-09-01 , DOI: 10.1021/ja00071a008 Ramesh D. Arasasingham , Gong Xin He , Thomas C. Bruice
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 1993-09-01 , DOI: 10.1021/ja00071a008 Ramesh D. Arasasingham , Gong Xin He , Thomas C. Bruice
The mechanism for the bimolecular reaction of meso-tetrakis(2,6-dichlorophenyl)porphinato-oxo-manganese-(IV), [(Cl 8 TPP)Mn IV (O)], with alkenes has been investigated by kinetics and product identification. Kinetic studies were carried out with 11 alkenes (trans-4-methoxystilbene, cis-4-methoxystilbene, 1,4-diphenyl-1,3-butadiene, 4-methoxystyrene, 1,1-diphenylethylene, 4-methylstyrene, 2,3-dimethyl-2-butene, trans-stilbene, cis-stilbene, styrene, 4-acetoxystyrene) in methylene chloride solution (30 o C) in air. The reactivities of the alkenes show that the trans alkenes are slightly more reactive than their cis isomers and that electron releasing substituents slightly favor the reaction
中文翻译:
锰卟啉催化烯烃氧化的机理。锰 (IV)-氧代物种的作用
通过动力学和产物鉴定研究了内消旋四(2,6-二氯苯基)卟吩-氧代-锰-(IV)、[(Cl 8 TPP)Mn IV (O)]与烯烃的双分子反应机理. 对 11 种烯烃(反式-4-甲氧基芪、顺式-4-甲氧基芪、1,4-二苯基-1,3-丁二烯、4-甲氧基苯乙烯、1,1-二苯基乙烯、4-甲基苯乙烯、2,3 -二甲基-2-丁烯、反式-二苯乙烯、顺-二苯乙烯、苯乙烯、4-乙酰氧基苯乙烯)在二氯甲烷溶液(30 o C)中的空气中。烯烃的反应性表明反式烯烃的反应性略高于其顺式异构体,并且释放电子的取代基略有利于反应
更新日期:1993-09-01
中文翻译:
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锰卟啉催化烯烃氧化的机理。锰 (IV)-氧代物种的作用
通过动力学和产物鉴定研究了内消旋四(2,6-二氯苯基)卟吩-氧代-锰-(IV)、[(Cl 8 TPP)Mn IV (O)]与烯烃的双分子反应机理. 对 11 种烯烃(反式-4-甲氧基芪、顺式-4-甲氧基芪、1,4-二苯基-1,3-丁二烯、4-甲氧基苯乙烯、1,1-二苯基乙烯、4-甲基苯乙烯、2,3 -二甲基-2-丁烯、反式-二苯乙烯、顺-二苯乙烯、苯乙烯、4-乙酰氧基苯乙烯)在二氯甲烷溶液(30 o C)中的空气中。烯烃的反应性表明反式烯烃的反应性略高于其顺式异构体,并且释放电子的取代基略有利于反应