22112-78-3Relevant articles and documents
Synthesis of sitting-atop type adducts of diphenyl and dimethyltin(IV) dihalides with meso-tetraarylporphyrins
Zabardasti, Abedien,Asadi, Mozaffar,Kakanejadifard, Ali
, p. 1157 - 1160 (2006)
Some molecular adducts of dimethyltin(IV) dichloride, diphenyltin(IV) dichloride and diphenyltin(IV) dibromide with para-substituted meso-tetraphenylporphyrin have been prepared. This adducts with general formula [(Me2SnCl2)2/s
Convenient synthetic route of versatile 21-monothiatetraphenylporphyrins of the A4 and AB3 type
Stute, Silvio,Gloe, Kerstin,Gloe, Karsten
, p. 2907 - 2912 (2005)
A novel convenient synthetic route for poly-functional 21- monothiatetraphenylporphyrins of the type A4 und AB3 having base labile substituents in meso position was developed. Using this method a series of symmetric and asymmetric 21-thiaporphyrins containing different functional groups at the meso position is reported. The new products were characterized by NMR, UV-Vis and mass spectroscopy.
Hydroxyalkyloxy substituted tetraphenylporphyrins: Mechanism and superoxide scavenging activity
Kuzmin, Sergey M.,Chulovskaya, Svetlana A.,Parfenyuk, Vladimir I.
, p. 1477 - 1485 (2016)
The novel electrochemical approach based on coulometric response of electro-generated superoxide (O2?-) was used to determine scavenging properties of 2H-5,10,15,20-tetrakis (4-hydroxyphenyl)porphyrin (H2T(4-OHPh)P); 2H-5,
Substituent and solvent effects on the hyperporphyrin spectra of diprotonated tetraphenylporphyrins
Weinkauf, James R.,Cooper, Sharon W.,Schweiger, Aaron,Wamser, Carl C.
, p. 3486 - 3496 (2003)
UV-visible spectra was studied for a series of p-substituted tetraphenylporphyrins (TPP) titrated with strong acid in various solvents. The longest wavelength absorption at 811 nm, however, was the greatest shift for any diprotonated substituted TPP. The magnitude of the shift was enhanced by a solvent effect. Diprotonated TAPP could be observed 10 fluoresce weakly in dichloromethane (DCM) solvent but not in dimethyl sulfoxide. DCM, which light exposure in the presence of a poryphyrin generated sufficient acid to significantly affect the spectrum. The effect was noted quantitatively by placing a dilute (4μM) TTP solution in a diode array spectrophotometer; an effective acid titration could be observed simply by exposing the sample to the monitoring beam over a period of 2 min.
Photodynamic studies of metallo 5,10,15,20-tetrakis(4-methoxyphenyl) porphyrin: Photochemical characterization and biological consequences in a human carcinoma cell line
Milanesio,Alvarez,Yslas,Borsarelli,Silber,Rivarola,Durantini
, p. 14 - 21 (2001)
The photodynamic activities of the free-base 5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin (TMP) and their metal complexes with zinc(II) (ZnTMP), copper(II) (CuTMP) and cadmium(II) (CdTMP) have been compared in two systems: reverse micelle of n-heptane/so
The coulometric approach to the superoxide scavenging activity determination: The case of porphyrin derivatives influence on oxygen electroreduction
Kuzmin, Sergey M.,Chulovskaya, Svetlana A.,Parfenyuk, Vladimir I.
, p. 1053 - 1062 (2015)
The electrochemical and antioxidant properties of 5,10,15,20-tetrakis(3′-hydroxyphenyl)porphyrin (H2T(m-OHPh)P) and 5,10,15,20-tetrakis(4′-hydroxyphenyl)porphyrin (H2T(p-OHPh)P) were tested by the cyclic voltammetry (CV) method. It i
Part 2. Meso-Tetraphenylporphyrin dimer derivatives as potential photosensitizers in photodynamic therapy
Faustino, Maria A. F.,Neves, Maria G. P. M. S.,Cavaleiro, Jose A. S.,Neumann, Marcus,Brauer, Hans-D.,Jori, Giulio
, p. 217 - 225 (2000)
Studies on the synthesis, singlet oxygen and fluorescence yields and pharmacokinetic properties of three different dimeric porphyrins with an amide linkage (D2-D4) are described and compared with the results recently reported for a dimeric porphyrin (D1).
A comparative study on the catalytic performance of heme and non-heme catalysts: Metal porphyrins versus metal Schiff bases
Talaeizadeh, Atefeh,Tofighi, Mahdi,Zakavi, Saeed
, (2018)
Catalytic activity and oxidative stability of a series of iron and manganese porphyrins with 2-chlorophenyl, phenyl and 4-methoxyphenyl at the meso positions and metallosalens (Mn- and Fe-salens) including N,N′-bis(salicylidene)ethylenediamine, N,N′-bis(5- chlorosalicylidene)ethylenediamine and N,N′-bis(2,4-dihydroxysalicylidene)ethylenediamine for the oxidation of olefins with tetra-n-butylammonium periodate (TBAP) and tetra-n-butyl-ammonium Oxone (TBAO) have been investigated and compared. Although the metalloporphyrins showed an increased catalytic activity relative to the Schiff base complexes, the former provided no significant catalytic advantage over the latter. Also, a comparable or slightly higher oxidative stability was observed for the Schiff base complexes under the reaction conditions. Furthermore, in spite of large difference between the oxidizing ability of TBAO and TBAP, similar patterns were observed for the order of catalytic activity and oxidative stability of the used heme and non-heme catalysts. The introduction of a methyl group at the ɑ position of styrene led to an increase in its reactivity, indicating the dominance of electronic effects over the steric ones in these catalytic systems.
A hypervalent Bismuth(III) derivative of Tetrakis-4-methoxyphenyl porphyrin: Synthesis, spectroscopic characterisation and morphological investigations
Dechan, Padma,Bajju, Gauri Devi
, (2020)
In this study, we aimed to synthesize as well as spectroscopically characterize a sitting-atop (SAT) macro molecule of Tetrakis-4-methoxyphenylporphyrinato Bi(III). The bismuth porphyrin was prepared by the reaction of free base macrocycle, 5, 10, 15, 20-
Efficient oxidation of cycloalkanes with simultaneously increased conversion and selectivity using O2 catalyzed by metalloporphyrins and boosted by Zn(AcO)2: A practical strategy to inhibit the formation of aliphatic diacids
Shen, Hai-Min,Wang, Xiong,Ning, Lei,Guo, A-Bing,Deng, Jin-Hui,She, Yuan-Bin
, (2020/11/20)
The direct sources of aliphatic acids in cycloalkanes oxidation were investigated, and a strategy to suppress the formation of aliphatic acids was adopted through enhancing the catalytic transformation of oxidation intermediates cycloalkyl hydroperoxides to cycloalkanols by Zn(II) and delaying the emergence of cycloalkanones. Benefitted from the delayed formation of cycloalkanones and suppressed non-selective thermal decomposition of cycloalkyl hydroperoxides, the conversion of cycloalkanes and selectivity towards cycloalkanols and cycloalkanones were increased simultaneously with satisfying tolerance to both of metalloporphyrins and substrates. For cyclohexane, the selectivity towards KA-oil was increased from 80.1% to 96.9% meanwhile the conversion was increased from 3.83 % to 6.53 %, a very competitive conversion level with higher selectivity compared with current industrial process. This protocol is not only a valuable strategy to overcome the problems of low conversion and low selectivity lying in front of current cyclohexane oxidation in industry, but also an important reference to other alkanes oxidation.
Porphyrin n-pincer pd(Ii)-complexes in water: A base-free and nature-inspired protocol for the oxidative self-coupling of potassium aryltrifluoroborates in open-air
Hanafiah, Marlia M.,Lakkaboyana, Sivarama Krishna,Lakshmidevi, Jangam,Marella, Ravi Kumar,Naidu, Bandameeda Ramesh,Prasad, Sana Siva,Venkateswarlu, Katta
, (2021/09/13)
Metalloporphyrins (and porphyrins) are well known as pigments of life in nature, since representatives of this group include chlorophylls (Mg-porphyrins) and heme (Fe-porphyrins). Hence, the construction of chemistry based on these substances can be based on the imitation of biological systems. Inspired by nature, in this article we present the preparation of five different porphyrin, meso-tetraphenylporphyrin (TPP), meso-tetra(p-anisyl)porphyrin (TpAP), tetra-sodium meso-tetra(p-sulfonatophenyl)porphyrin (TSTpSPP), meso-tetra(m-hydroxyphenyl)porphyrin (TmHPP), and meso-tetra(m-carboxyphenyl)porphyrin (TmCPP) as well as their N-pincer Pd(II)-complexes such as Pd(II)-meso-tetraphenylporphyrin (PdTPP), Pd(II)-meso-tetra(p-anisyl)porphyrin (PdTpAP), Pd(II)-tetrasodium meso-tetra(p-sulfonatophenyl)porphyrin (PdTSTpSPP), Pd(II)-meso-tetra(m-hydroxyphenyl)porphyrin (PdTmHPP), and Pd(II)-meso-tetra(m-carboxyphenyl)porphyrin (PdTmCPP). These porphyrin N-pincer Pd(II)-complexes were studied and found to be effective in the base-free self-coupling reactions of potassium aryltrifluoroborates (PATFBs) in water at ambient conditions. The catalysts and the products (symmetrical biaryls) were characterized using their spectral data. The high yields of the biaryls, the bio-mimicking conditions, good substrate feasibility, evading the use of base, easy preparation and handling of catalysts, and the application of aqueous media, all make this protocol very attractive from a sustainability and cost-effective standpoint.
