Study of the catalytical intermediates of metalloporphyrins supported on imidazole propyl gel

Glycol metalloporphyrin derivatives in solution or immobilized on LDH and silica: synthesis, characterization and catalytic features in oxidation reactions

“…In accordance with the literature, 3,5,7,84,85,[87][88][89][90][91][92][93] [Fe(TPFPP)]Cl and [Mn(TPFPP)]Cl (homogeneous catalysis) catalyzed cyclohexane oxidation efficiently and selectively (runs 1 and 4; alcohol yield = 85 and 34%; ketone yield = 2.0 and 6.0%, respectively). Table 5 shows that the reaction yields for the modified iron porphyrins FeP7 and FeP8 were lower than the yields obtained for [Fe(TPFPP)]Cl.…”

The Research on Porphyrins and Analogues in Brazil: A Small Review Covering Catalytic and other Applications since the Beginning at Universidade de São Paulo in Ribeirão Preto until the Joint Venture between Brazilian Researchers and Colleagues from Universidade de Aveiro, Portugal

“…48,51 The performance of the typical second-generation catalyst 5,10,15,20-tetrakis(pentafluorophenyl) porphyrinate)iron(III) ([Fe(TPFPP)]Cl) ( Figure 4, R = 4) for cyclohexane hydroxylation was investigated by different groups. 27,54,[60][61][62][63][64][65][66] In these studies, it was reported that the yields are dependent on the type of oxidant and solvent used in the catalytic reaction. For example, studies performed by Iamamoto et al 58 showed that competitive oxidation reactions between PhIO-dichloromethane and PhIO-cyclohexane by the catalytic active species diminished the desired oxidation product yield.…”

“…After this first communication, many other metalloporphyrins were immobilized on commercial silica or silica modified chemically by different silanes for efficient and selective oxidation of alkanes, 61,64,80,98,165 alkenes, 61,64,80,165 dyes, 92 pesticides, 90 among others. 164 The sol-gel process is a powerful tool to synthesize supported catalytic materials, since it is possible to control catalyst composition and morphology as well as textural properties.…”

Kinetics and Mechanism of meso -Tetraphenyl-porphyriniron (III) Chloride Catalyzed Oxidation of Aniline and Its Substituents by Oxone in Aqueous Acetic Acid Medium

“…Metalloporphyrin iron complexes have been the subject in a number of studies, as they can be added as catalysts in selective oxidation of aniline. Many mechanistic studies have revealed that halogenated metalloporphyrin complexes are excellent catalysts for difficult oxidations with high selectivity. The iron complexes with meso ‐tetraphenyl groups are extensively considered as models of the natural ironporphyrins due to their constructive properties, such as, catalytic and semiconducting properties.…”