Catalysis-chemistry

Aziridination and amidation catalyzed by polymer-supported metalloporphyrins with PhI(OAc)2 and TsNH2 was written by Zhou, Zhi-Wang;Zhao, Yuan-Cong;Yue, Yang;Wu, Jiang;Yang, Meng;Yu, Xiao-Qi. And the article was included in ARKIVOC (Gainesville, FL, United States) in 2005.Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

Manganese and ruthenium 5,10,15-tris(tolyl)-20-(4-hydroxyphenyl)porphyrins covalently attached to Merrifield’s peptide resin(MPR) were prepared resp. The catalysts efficiently catalyzed the aziridination/amidation of simple hydrocarbons and ¦¤⁵-steroid derivatives with PhI(OAc)₂ and TsNH₂. Moderate to excellent yields were obtained under mild reaction conditions. The catalysts exhibit different diastereoselectivities towards the ¦¤⁵-steroid derivatives, the manganese one showed ¦Á-selectivity and the ruthenium one showed ¦Â-selectivity under certain reaction conditions. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligands, especially phosphines and carbenes, can play a key role in modifying and controlling homogeneous organometallic catalysts. Replacing precious metals with cheaper and more environmentally friendly metals is regarded as a highly desirable goal in the field of catalysis.Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

An efficient photochemical synthesis of conformationally restricted quinone-substituted porphyrins was written by Osuka, Atsuhiro;Morikawa, Soichi;Maruyama, Kazuhiro;Hirayama, Satoshi;Minami, Takaaki. And the article was included in Journal of the Chemical Society, Chemical Communications in 1987.SDS of cas: 57412-08-5 The following contents are mentioned in the article:

The title porphyrins I (R = 2-OR¹, 4-OR¹; R²-R⁴ = H; R² = H, Cl, Br, Me, R³R⁴ = CH:CHCH:CH) were obtained by self-sensitized photochem. coupling of I (R = 2-OH, 4-OH) with R¹R⁵ (R⁵ = Cl, Br). The difference between donor oxidation and acceptor red redox potentials is very similar in I (R = 2-OR¹) and I (R = 4-OR¹). Fluorescence quenching was inefficient in conformationally restricted I (R = OR¹). This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5SDS of cas: 57412-08-5).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand, in chemistry, any atom or molecule attached to a central atom, usually a metallic element, in a coordination or complex compound. And they often provide a convenient approach to fine-tuning the performance of known catalysts.SDS of cas: 57412-08-5

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Light-induced electron transfer of porphyrin triad for photoelectric conversion was written by Wang, Xiang Dong;Zhang, Bao Wen;Bai, Jian Wei;Cao, Yi;Xiao, Xu Rui;Xu, Jing Mei. And the article was included in Journal of Physical Chemistry in 1992.Recommanded Product: 57412-08-5 The following contents are mentioned in the article:

Two new triad model compounds of porphyrin-viologen-carbazole with different chain length were synthesized to mimic photosynthesis. The absorption and fluorescence spectra in solution, in micelle solution as well as in binary solvent, were investigated; especially, the effects of aggregation on the photophys. properties. A mechanism including photoinduced electron-transfer and two-step charge separation was suggested. These triad compounds were easily formed Langmuir-Blodgett (LB) films. High photodriven voltages and currents were obtained with only one monolayer of LB film on the surface of SnO₂ conductive glass. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Recommanded Product: 57412-08-5).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand, in chemistry, any atom or molecule attached to a central atom, usually a metallic element, in a coordination or complex compound. And they often provide a convenient approach to fine-tuning the performance of known catalysts.Recommanded Product: 57412-08-5

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

The synthesis of covalently linked tetraarylporphyrin dimers was written by Little, Robert G.. And the article was included in Journal of Heterocyclic Chemistry in 1978.SDS of cas: 57412-08-5 The following contents are mentioned in the article:

Porphyrin dimers, e.g. I, were prepared The synthesis involves the reaction of dibromoalkanes with phenolic porphyrins, such as 5-(4-hydroxyphenyl)-10,15,20-tritolylporphyrin, to form ¦Ø-bromoalkyl porphyrin ethers. The latter compounds are then reacted with a second phenolic porphyrin to give porphyrin dimers. A mixed metalloporphyrin dimer was prepared which contains both V(IV) and Cu(II). The compounds were examined spectroscopically. The free-base porphyrin dimers show a splitting of the intense Soret band. This is interpreted as indicative of weak singlet energy transfer between the covalently linked porphyrins. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5SDS of cas: 57412-08-5).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand design occupies a central place in organic synthesis and catalysis. The actual catalysts are metal complexes that are prepared from ligands and appropriate metal precursors.SDS of cas: 57412-08-5

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Conformations of cytochrome P-450 models by 1D and 2D NMR was written by Ning, Yongcheng;Yuan, Lihua;Wang, Fengyan;Yuan, Haodan;Chen, Shuhua;Zhao, Huaming;Feng, Yuping;Mao, Yingqun. And the article was included in Tsinghua Science and Technology in 1996.Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

Conformations of organic compounds in solution relate to their phys. and chem. properties and biol. activities. Two calix[4]arene-porphyrin derivatives were synthesized as models of cytochrome P 450 monooxygenase. The conformations of the models were determined using DQFCOSY (double quantum filter correlation spectroscopy), NOESY (nuclear overhauser effect spectroscopy), etc. The calix[4]arene part showed cone conformation in one compound and showed mainly partial cone conformation in the other compound The calix[4]arene and the porphyrin were situated side by side in the first compound, and above and below each other in the second compound This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligands, especially phosphines and carbenes, can play a key role in modifying and controlling homogeneous organometallic catalysts. The ability of ligands to engender a variety of useful properties of organometallic complexes is the major enabling force for the discovery of new catalytic reactions, activation of small molecules, dramatically enhanced reactivity.Name: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Platinum(II) complexes with porphyrin ligands: synthesis and synergisms in the photodynamic tumor therapy was written by Brunner, Henri;Obermeier, Herbert;Szeimies, Rolf-Markus. And the article was included in Chemische Berichte in 1995.Application of 57412-08-5 The following contents are mentioned in the article:

Twelve porphyrin ligands and their Pt(II) complexes were synthesized and characterized. Nine of the porphyrins are derived from hemin, and three are based on tetraphenylporphyrin. The ligands were transformed into diammine-dicarboxylatoplatinum(II) complexes and diamine-dichloroplatinum(II) complexes. The antitumor activity in the photodynamic therapy of the ligands and their complexes was tested in vitro towards the MDA-MB-231 mammary carcinoma cell line. The results obtained showed an additive effect on the photodynamic activity of the porphyrin skeleton when irradiation with visible red light and the cytotoxic activity of the Pt moiety in the complexes. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Application of 57412-08-5).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Catalytic transformations have become a mainstay in the toolkit of the synthetic and increasing non-synthetic chemist alike. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.Application of 57412-08-5

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

New organic gelalors bearing a porphyrin group: a new strategy to create ordered porphyrin assemblies was written by Tian, Hong Jian;Inoue, Kazuhiko;Yoza, Kenji;Ishi-I, Tsutomu;Shinkai, Seiji. And the article was included in Chemistry Letters in 1998.Electric Literature of C47H36N4O The following contents are mentioned in the article:

Cholesterol-based gelators I bearing a porphyrin moiety were synthesized. (S)-I with a natural C-3 configuration could gelatinize a few solvents whereas (R)-I with an inverted C-3 configuration could not gelatinize any solvent. The absorption and CD spectra for less cohesive (R)-I were changed only to a smaller extent at 10^-5?10^-2 mol dm^-3 whereas more cohesive (S)-I gave a new ¦Ë_max at 444 nm and its corresponding CD band only in the gel phase. The results indicate that “gelation” is a new strategy to create ordered porphyrin assemblies. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Electric Literature of C47H36N4O).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand design occupies a central place in organic synthesis and catalysis. Replacing precious metals with cheaper and more environmentally friendly metals is regarded as a highly desirable goal in the field of catalysis.Electric Literature of C47H36N4O

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Porphyrins: synthesis and antitumor activity of porphyrin-fluorouracil compounds was written by Huang, S. Q.;Jiang, Z. C.;Li, L. Z.;Xu, J. Y.;Yang, J.. And the article was included in Yaoxue Xuebao in 1991.Electric Literature of C47H36N4O The following contents are mentioned in the article:

Three covalently linked porphyrin-fluorouracil compounds I (R¹ = H, R² = o-NHCOCH₂Q (II), R¹ = MeO, R² = p-O(CH₂)₄Q; R¹ = Me, R¹ = p-O(CH₂)₄Q] were synthesized. Measurement using these compounds for inhibition of mice transplanted tumor growth, cytotoxicity to mice cancer cells and the mice ear index under exposure to a light was performed. The results indicated that all these compounds were phototoxic to the cancer cells, and compound II was the most effective among them. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Electric Literature of C47H36N4O).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligands are classified based on the number of lone pair electrons available for the central metal atom, size and charge like anionic, cationic, neutral, monodentate, bidentate, polydentate ligands. The ability of ligands to engender a variety of useful properties of organometallic complexes is the major enabling force for the discovery of new catalytic reactions, activation of small molecules, dramatically enhanced reactivity.Electric Literature of C47H36N4O

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Mixed monomolecular film behavior of crown ether and porphyrins with arachidic acid was written by Mu, Jin;Xiao, Tong;Xu, Chuanxheng;Yang, Kongzhang;Shang, Shuxia. And the article was included in Huaxue Xuebao in 1993.Computed Properties of C47H36N4O The following contents are mentioned in the article:

In this paper, the mixed monomol. films of arachidic acid with 3′-pentadecylbenzo-15-crown-5 and six lipid-free tetraphenylporphyrins which are difficult to form insoluble monolayers alone are studied. The results show that the crown ether is embedded in and porphyrins are squeezed out of the arachidic acid monolayers. The visible absorption spectra of all porphyrin-cadmium arachidate Langmuir Blodgett (LB) films indicate that there are some degree of agglomeration between porphyrin mols. By means of scanning electron microscope, the morphol. structure of porphyrin-cadmium arachidate LB film is observed, and phase separation in mixed monolayers can be monitored without Au coating. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Computed Properties of C47H36N4O).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. The atoms and molecules used as ligands are almost always those that are capable of functioning as the electron-pair donor in the electron-pair bond (a coordinate covalent bond) formed with the metal atom. And they often provide a convenient approach to fine-tuning the performance of known catalysts.Computed Properties of C47H36N4O

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

pH-dependent photoinduced electron transfer at the gold electrode modified with self-assembled monolayer of a porphyrin-mercaptoquinone coupling molecule was written by Kondo, Toshihiro;Yanagida, Masatoshi;Nomura, Shu-ichi;Ito, Takashi;Uosaki, Kohei. And the article was included in Journal of Electroanalytical Chemistry in 1997.Recommanded Product: 57412-08-5 The following contents are mentioned in the article:

A porphyrin-quinone coupling mol. with thiol group was synthesized and immobilized on a gold electrode by the self-assembly method. In electrolyte solutions containing methylviologen as an electron acceptor and EDTA as an electron donor, anodic and cathodic photocurrents were observed at potentials resp. more pos. and more neg. than the redox potential of quinone moiety. When the pH of the solution was changed, the redox potential of quinone moiety shifted to the more neg. direction and, accordingly, the potential dependence of the photocurrents also shifted to the neg. direction, indicating that the photoinduced electron transfer direction can be controlled by the pH in the electrolyte solution This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Recommanded Product: 57412-08-5).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Ligand, in chemistry, any atom or molecule attached to a central atom, usually a metallic element, in a coordination or complex compound. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.Recommanded Product: 57412-08-5

Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI