Tag: 600-700

Synthesis and Properties of Covalently Linked Trichromophore Systems was written by Khan, Tamanna K.;Ravikanth, Mangalampalli. And the article was included in European Journal of Organic Chemistry in 2011.Formula: C47H36N4O The following contents are mentioned in the article:

Four covalently linked trichromophore systems containing a central boron dipyrromethene (BODIPY) unit connected to a porphyrin unit through the 3-position and a core-modified porphyrin or a porphyrin expanded through the 5-position were synthesized by treating 3-bromo-5-porphyrinyl BODIPY or 3-bromo-5-rubyrinyl BODIPY with the corresponding hydroxy porphyrin or hydroxy-expanded porphyrin in CHCl₃ at 60 ¡ãC. The compounds are freely soluble in common organic solvents and confirmed by mass spectrometry and 1D and 2D NMR spectroscopy techniques. The absorption and electrochem. studies support weak ground-state interactions among the three chromophore units within the trichromophore systems. The fluorescence studies indicate that BODIPY emission is quenched to a significant degree in all trichromophore systems due to a transfer of energy to one or both macrocyclic units attached to the BODIPY chromophore. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Formula: 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. It is clear that future advancements in metal complexes and their applications crucially depend on ligand design, whereas the ligand electronic, steric and topological properties provide numerous improvements to the reactivity and selectivity at the metal centers.Formula: C47H36N4O

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

Spectral research into intramolecular photoinduced electron transfer of porphyrin-anthraquinone hybrids was written by Zhao, Ping;Xu, Lian-Cai;Ma, Li. And the article was included in Wuli Huaxue Xuebao in 2011.Recommanded Product: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

A series of covalently linked porphyrin (Por)-anthraquinone (AQ) hybrids Por-C_n-AQ (n=1, 4, 10) with flexible different length carbon chains were synthesized and their intramol. photoinduced electron transfer (PET) properties were investigated mainly by steady-state fluorescence and decayed luminescence spectra. The intramol. photoinduced electron transfer mechanism was studied using d. functional theory (DFT). Intramol. photoinduced electron transfer was found from the porphyrin moiety to the anthraquinone moiety of these dyads and that the intramol. photoinduced electron transfer efficiency is influenced considerably by the length of the linkage between the two moieties in the hybrids. From both the exptl. and theor. results, it was concluded that the intramol. photoinduced electron transfer of these dyads is seemingly most compatible with a ‘through-bond’ (super-exchange) mechanism. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Recommanded Product: 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. A ligand is an ion or molecule, which donates a pair of electrons to the central metal atom or ion to form a coordination complex. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.Recommanded Product: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

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

Stereodynamics of intramolecular triplet energy transfer in carotenoporphyrins was written by Gust, Devens;Moore, Thomas A.;Bensasson, Rene V.;Mathis, Paul;Land, Edward J.;Chachaty, Claude;Moore, Ana L.;Liddell, Paul A.;Nemeth, Gregory A.. And the article was included in Journal of the American Chemical Society in 1985.Recommanded Product: 57412-08-5 The following contents are mentioned in the article:

A series of carotenoporphyrins whose conformations, as determined from ¹H NMR studies, range from folded (with the carotenoid ¦Ð-electron system stacked over that of the porphyrin) to extended (with the chromophores widely separated) were prepared Time-resolved spectroscopic studies revealed intramol. triplet energy transfer from porphyrin to carotenoid. Two distinct pathways for such transfer (presumably occurring via an electron-exchange mechanism) were observed: (a) static transfer which does not require significant intramol. motions and (b) dynamic transfer mediated by intramol. motions. The relative importance of these pathways is a function of mol. structure and dynamics. The results for this series of carotenoporphyrins help define the photochem. and photophys. requirements for protection from singlet oxygen damage both in photosynthetic organisms and in other biol. systems. 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 design occupies a central place in organic synthesis and catalysis. The ligands are electron-rich and highly tunable to provide catalyst systems with a diverse scope, high stability, and reactivity.Recommanded Product: 57412-08-5

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

Study of conformation equilibrium and ¦Ð-¦Ð interaction of porphyrin dimers was written by Ren, Qi-Zhi;Huang, Jin-Wang;Lin, Cui-Wu;Ji, Liang-Nian. And the article was included in Gaodeng Xuexiao Huaxue Xuebao in 1999.Reference of 57412-08-5 The following contents are mentioned in the article:

Porphyrin dimers and their zinc complexes covalently linked with -O(CH₂)_nO- (n = 2-10) chain were synthesized and characterized. Their steady-state fluorescence spectra show the existence of intramol. energy transfer processes in these free-base porphyrin dimers. The C₄ free dimer has the greatest efficiency of energy transfer. By using IR and ¹H NMR methods, the relation between the conformation equilibrium and the length of the alkoxy chain and the metal complexation was studied. With increasing chain lengths, the conformation equilibrium of the porphyrin dimers moves to the closed conformation. The length of the C₄ dimer was suitable to form the closed conformation. The metalation with zinc ion increases the magnitude of ¦Ð-¦Ð interaction of two porphyrin rings while it does not affect the conformation equilibrium of porphyrin dimers. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Reference 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. Replacing precious metals with cheaper and more environmentally friendly metals is regarded as a highly desirable goal in the field of catalysis.Reference of 57412-08-5

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

Synthesis and biological evaluation of polyamine-porphyrin conjugates as potential agents in photodynamic therapy (PDT) was written by Lamarche, Francois;Sol, Vincent;Huang, Yi-Ming;Granet, Robert;Guilloton, Michel;Krausz, Pierre. And the article was included in Journal of Porphyrins and Phthalocyanines in 2002.Application In Synthesis of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

A new class of porphyrins bearing natural polyamines, I [R = N(CH₂CH₂CH₂NH₂)(CH₂CH₂CH₂CH₂NH₂); R = N(CH₂CH₂CH₂NH₂)(CH₂CH₂CH₂CH₂NHCH₂CH₂CH₂NH₂)], has been designed in order to target the photosensitizers towards malignant cells. The authors report the synthesis of spermidine and spermine porphyrins. Thus, spermidine was diprotected at the terminal amine functions and reacted with I (R = OH) followed by deprotection to give the desired product; spermine was reacted similarly. The photocytotoxicity of these compounds against K562 human chronic myelogenous leukemia cells has been evaluated and compared to Photofrin II. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Application In Synthesis of 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. Ligand design occupies a central place in organic synthesis and catalysis. 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.Application In Synthesis of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

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

Styrene-hydroxyethyl methacrylate copolymer microsphere immobilized porphyrinatomanganese(III) as a mild, reusable and highly efficient catalyst for epoxidation of cyclohexene with molecular oxygen was written by Ye, Yuan-Jian;Zhou, Xian-Tai;Huang, Jin-Wang;Cai, Jin-Hua;Wu, Wen-Hai;Yu, Han-Cheng;Ji, Hong-Bin;Ji, Liang-Nian. And the article was included in Journal of Molecular Catalysis A: Chemical in 2010.Quality Control of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

On the basis of synthesis of styrene-hydroxyethyl methacrylate copolymer microspheres with a functionalized hydroxyl, we have prepared a new type of copolymer microspheres immobilized porphyrinatomanganese(III), P(St-co-HEMA)MnP, by a condensation reaction between a hydroxyl in copolymer microspheres surface and a carboxyl in porphyrin ring. The obtained copolymer catalyst (P(St-co-HMEA)MnP) was characterized by SEM, UV-vis, IR, ICP and TG-DTG. The SEM image shows that the morphol. of the copolymer catalyst is spheriform with ca. 4 ¦Ìm diameter The catalytic activity of P(St-co-HMEA)MnP to epoxidize cyclohexene in the presence of mol. oxygen and isobutylaldehyde has been studied. The catalytic efficiency of P(St-co-HMEA)MnP is comparable to that of non-supported MnCMPTTP. It is a mild, reusable and highly efficient heterogeneous catalyst for the epoxidation of cyclohexene. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Quality Control of 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. Attachment of the ligand to the metal may be through a single atom, in which case it is called a monodentate ligand, or through two or more atoms, in which case it is called a didentate or polydentate ligand. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.Quality Control of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

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

Photoinduced electron transfer within porphyrin-anthraquinone dyads connected by Hamilton hydrogen bonding was written by Zhao, Xin;Chen, Jinping;Zeng, Yi;Li, Yingying;Han, Yongbin;Li, Yi. And the article was included in Chinese Journal of Chemistry in 2010.Quality Control of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

Porphyrin- or Zn-porphyrin-cyanuric acid conjugants (TPP-CA or ZnTPP-CA) and anthraquinone connected with the known Hamilton receptor (AQ-H) were synthesized. The supramol. dyads constructed via the AQ-H and TPP-CA/ZnTPP-CA exhibit 6 H bonds, which provide the association constant K_APP approx. (2.8 ¡À 0.3) ¡Á 10³ mol^-1/L in toluene. Selective excitation of the porphyrin/Zn porphyrin chromophores results in an electron transfer between TPP-CA/ZnTPP-CA and AQ-H within the supramol. assemblies, leading to an efficient quenching of the TPP-CA/ZnTPP-CA fluorescence. The singlet electron transfer from porphyrin/Zn-porphyrin to anthraquinone proceeds mainly via a through space mechanism with efficiencies of 43%, 58%, and rate constants of 7.6 ¡Á 10⁷, 7.0 ¡Á 10⁸ s^-1, resp. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Quality Control of 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. Ligand design occupies a central place in organic synthesis and catalysis. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.Quality Control of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

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

Synthesis and biological evaluation of thioglycosylated porphyrins for an application in photodynamic therapy was written by Sylvain, I.;Zerrouki, R.;Granet, R.;Huang, Y. M.;Lagorce, J.-F.;Guilloton, M.;Blais, J.-C.;Krausz, P.. And the article was included in Bioorganic & Medicinal Chemistry in 2001.Product Details of 57412-08-5 The following contents are mentioned in the article:

The aim of this work is the synthesis of a new family of glycosylated porphyrins in which the sugar moieties are linked to the tetrapyrrole ring by a thioglycosidic bond. Two series have been designed: the first one corresponds to meso-aryl porphyrin derivatives; the second one has been obtained from protoporphyrin IX derivatization. Aryl-porphyrins were prepared from tristolyl o- and p-hydroxyporphyrins followed by bromoallylation and thioglycosylation with peracetylated S-glucose, mannose and galactose and deprotection. The other series has been synthesized from protoporphyrin IX dimethylester with a regioselective glycosylation of terminal alkenyl carbon. The UV-visible, NMR and MALDI mass spectra are presented. Photocytotoxicities of the synthesized compounds against K562 chronic leukemia cell line has been evaluated. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Product Details 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. The actual catalysts are metal complexes that are prepared from ligands and appropriate metal precursors.Product Details of 57412-08-5

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

Novel phosphoramidates with porphine and nitrogenous drug: One-pot synthesis and orientation to cancer cells was written by Wang, Zhi-Wei;Guo, Can-Cheng;Xie, Wen-Zhong;Liu, Chao-Zhou;Xiao, Chun-Guang;Tan, Ze. And the article was included in European Journal of Medicinal Chemistry in 2010.Category: catalyst-ligand The following contents are mentioned in the article:

One-pot synthesis of novel phosphoramidates with porphine and nitrogenous drug was accomplished. In the absence of light, MTT test showed that they killed the BEL-7402 liver cancer cells effectively in vitro. The cell viability studied on normal liver and cancer cells showed that porphine phosphoramidates selectively kill the cancer cells, which was in sharp contrast with the non-porphine containing compound 4-formylphenyl N,N-bis(2-chloroethyl)-phosphoramidate. These results, coupled with the cell uptake test showing that they could differentiate the tumor cells from the normal cells by their selective accumulation in cancer cells, gave strong support to the notion that the introduction of porphine moiety in these mols. was responsible for the effectiveness and cell differentiability of these porphine phosphoramidates. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Category: catalyst-ligand).

4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5) belongs to catalyst ligands. Attachment of the ligand to the metal may be through a single atom, in which case it is called a monodentate ligand, or through two or more atoms, in which case it is called a didentate or polydentate ligand. It is clear that future advancements in metal complexes and their applications crucially depend on ligand design, whereas the ligand electronic, steric and topological properties provide numerous improvements to the reactivity and selectivity at the metal centers.Category: catalyst-ligand

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

Light-induced electron transfer and charge separation of porphyrin compounds for photoelectric conversion was written by Cao, Yi;Zhang, Bao-Wen;Qian, Wen-Yuan;Bai, Jian-Wei;Xiao, Xu-Rui;Jia, Jian-Guang. And the article was included in Journal of the Chinese Chemical Society (Taipei) in 1995.Related Products of 57412-08-5 The following contents are mentioned in the article:

A series of artificial photosynthesis porphyrin compounds consisting of electron donor and electron acceptor were synthesized. Their spectroscopic behaviors in solution were investigated and the synthetic mol. devices were prepared with these mols. by using LB technique. It was indicated that multistep electron transfer and charge separation for these compounds actually occur, which is of great advantage of their photoelec. conversion. An efficient energy transfer process takes place for one of the compounds A mechanism involving photoinduced electron transfer and multistep charge separation for these compounds was suggested. With only one monolayer of tetrad compound LB film on the surface of SnO₂ conductive glass, high photo-driven voltage and current were obtained. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Related Products of 57412-08-5).

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 actual catalysts are metal complexes that are prepared from ligands and appropriate metal precursors.Related Products of 57412-08-5

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