53340-30-0Relevant articles and documents
Substituent position effect of Co porphyrin on oxygen electrocatalysis
Lv, Haoyuan,Guo, Hongbo,Guo, Kai,Lei, Haitao,Zhang, Wei,Zheng, Haoquan,Liang, Zuozhong,Cao, Rui
supporting information, p. 2841 - 2845 (2021/03/17)
Substituent effect of metal porphyrin molecular catalysts plays a crucial role in determining the catalytic activity of oxygen electrocatalysis. Herein, substituent position effect of Co porphyrins on oxygen electrocatalysis, including the oxygen reductio
Effects of methoxy-substituted metalloporphyrins in catalytic alkene epoxidation by n-Bu 4NHSO 5
Aghabali, Amineh,Safari, Nasser
experimental part, p. 335 - 342 (2010/11/21)
TPPMnOAc and four different kinds of manganese tetraphenylporphyrin acetates were synthesized using different numbers of methoxy substituents in various positions of the phenyl rings. These porphyrins were used as catalysts in the epoxidation of various alkenes with tetra-n-butylammonium hydrogen monopersulfate (n-Bu 4NHSO 5) as the oxidant and imidazole as the axial base. The following order of catalytic activity was obtained: TPPMnOAc ≥ T(2,3-OMeP) PMnOAc > T(4-OMeP) PMnOAc > T(3,4-OMeP) PMnOAc > T(2,4,6-OMeP) PMnOAc. By studying the UV-vis spectra in the reaction solution, the stability of the applied methoxy porphyrins and the effect of this factor on obtained yields were investigated. Lower catalytic activity in some of the methoxy porphyrins emphasized steric effects and special hydrogen bonding among the reaction elements. However, the stability of T(2,3-OMeP) PMnOAc under our reaction condition was considerable and high activity was observed. By adding small amounts of alcohol to the reaction solution, the effect of the solvent mixture was previewed and steps were taken to identify the active intermediate of the catalyst in these conditions. Copyright
Synthesis and biological evaluation of methoxyphenyl porphyrin derivatives as potential photodynamic agents
Elisa Milanesio,Moran, Flavia S.,Ines Yslas,Gabriela Alvarez,Rivarola, Viviana,Durantini, Edgardo N.
, p. 1943 - 1949 (2007/10/03)
A new meso-2,4,6-trimethoxyphenyl porphyrin covalently linked to a 2′,6′-dinitro-4′-trifluoromethylphenyl group by an amine bond 5 and its metal complex with Cd(II) 6 was prepared. The photodynamic activities of 5 and 6 were evaluated in vitro on Hep-2 ce