Category: catalyst-ligand

Polymer-Supported Ruthenium Porphyrins: Versatile and Robust Epoxidation Catalysts with Unusual Selectivity was written by Yu, Xiao-Qi;Huang, Jie-Sheng;Yu, Wing-Yiu;Che, Chi-Ming. And the article was included in Journal of the American Chemical Society in 2000.Recommanded Product: 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

Carbonyl ruthenium(II) 5,10,15-tris(4-R-phenyl)-20-(4-hydroxyphenyl)porphyrins (R = Cl, Me) covalently attached to Merrifield’s peptide resin were prepared The catalyst with R = Cl was found to efficiently catalyze Cl₂pyNO epoxidation of a wide variety of alkenes, including aromatic and aliphatic terminal alkenes, cis- and trans-stilbene, cyclohexene and cyclooctene, ¦Á,¦Â-unsaturated ketones, conjugated enyne, glycal, and protected ¦Á-amino alkene. Unusual selectivities were observed for the epoxidations of 1,5-cyclooctadiene, cis-1-phenyl-3-penten-1-yne (9), 3,4,6-tri-O-acetyl-D-glucal (11), and 2-(Boc-amino)-1-phenylbut-3-ene (13), which feature a complete bisepoxide selectivity (1,5-cyclooctadiene), unprecedentedly high cis:trans ratio (9), and complete diastereoselectivity (11 and 13). The new heterogenized metalloporphyrin epoxidation catalysts are of high stability and reusability. 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. Ligand design occupies a central place in organic synthesis and catalysis. Chiral compounds with high purities and ee values are often used as ligands for catalytically active metal complexes. 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

Germanium(IV) phthalocyanine-porphyrin based hetero trimers:: synthesis, spectroscopy and photochemistry was written by Kandhadi, Jaipal;Kanaparthi, Ravi Kumar;Giribabu, Lingamallu. And the article was included in Journal of Porphyrins and Phthalocyanines in 2012.Product Details of 57412-08-5 The following contents are mentioned in the article:

The known oxophilicity of Germanium(IV) ion of Germanium(IV) phthalocyanine and porphyrins were exploited to synthesize functionally active, “axial-bonding” -type hetero oligomers. These hetero trimers were fully characterized by elemental anal., FAB-MS, UV-visible, proton NMR (1D and ¹H-¹H COSY) and fluorescence spectroscopies, as well as differential pulse voltammetric method. Comparison of their spectroscopic and electrochem. data with those of the corresponding individual constituents reveals that there is no apparent ¦Ð-¦Ð interactions in these “vertically” linked hetero oligomers. The fluorescence quantum yields are lower of these hetero oligomers in comparison with those of the monomeric chromophores. Electronic energy transfer and photoinduced electron transfer from axial porphyrins to central metalloid phthalocyanine and photoinduced electron transfer from singlet state of axial porphyrins to central metalloid phthalocyanine was detected in these hetero oligomers. 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. 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.Product Details of 57412-08-5

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

Effect of central metal ion on molecular dipole in porphyrin self-assembled monolayers was written by Khaderbad, Mrunal A.;Rao, Manohar;Jinesh, K. B.;Pandharipande, Rohit;Madhu, S.;Ravikanth, M.;Rao, V. Ramgopal. And the article was included in Nanoscience and Nanotechnology Letters in 2012.Electric Literature of C47H36N4O The following contents are mentioned in the article:

The phys. and electronic properties of nano-scale semiconductor devices are mainly decided by their surfaces and interfaces. Use of dipolar self-assembled monolayer (SAM) on semiconductor/oxide interfaces has an enormous potential to tailor the behavior of nanoelectronic, optical and biol. devices. Among different mols., porphyrins have been identified to form chem. stable SAMs on different substrates and their dipolar properties can be tuned by incorporating various metal species in them. This allows work-function tuning according to various technol. needs. In this paper, we describe the effect of central metal ion (selected period-4 transition metal ions Zn, Cu, Ni, Fe and Co) incorporated in 5-(4-hydroxyphenyl)-10,15,20-tri(p-tolyl)porphyrin (TTPOH) on the surface potential using Kelvin probe microscopy. D. functional theory (DFT) calculations were performed to estimate the magnitude of dipole moments. Also, absorption spectra of TTPOH mol. and its metal derivatives are compared. 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. And they often provide a convenient approach to fine-tuning the performance of known catalysts.Electric Literature of C47H36N4O

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

Hexakis Porphyrinato Benzenes. A New Class of Porphyrin Arrays was written by Biemans, H. A. M.;Rowan, A. E.;Verhoeven, A.;Vanoppen, P.;Latterini, L.;Foekema, J.;Schenning, A. P. H. J.;Meijer, E. W.;De Schryver, F. C.;Nolte, R. J. M.. And the article was included in Journal of the American Chemical Society in 1998.Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

A new type of porphyrin array (I) (R = Me, OC₁₆H₃₃) has been synthesized by the coupling of six porphyrin moieties to a central benzene core via an ether linkage. The resulting porphyrin supermol. has a diameter up to 80 ? and a mass of 8500 daltons. In solution, the six porphyrins around the central benzene ring arrange themselves into three sets of offset overlapping dimers, which are rapidly interconverting at room temperature Solution UV-vis and fluorescence studies, however, indicate that there are no electronic interactions between the individual porphyrin mols. Upon spreading a chloroform solution of these porphyrin mols. on a surface, they self-assemble to form ring-shaped architectures on a micrometer scale. Near-field scanning optical microscopy studies reveal that the porphyrin moieties within the rings have an ordered arrangement with respect to their position in the ring after the sample has been annealed at 80 ¡ãC for 2 days. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Safety 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. Ligands, especially phosphines and carbenes, can play a key role in modifying and controlling homogeneous organometallic catalysts. Chiral compounds with high purities and ee values are often used as ligands for catalytically active metal complexes. Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

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

Optically active macrocyclic cis-3 bis-adducts of C₆₀: regio- and stereoselective synthesis, exciton chirality coupling, and determination of the absolute configuration, and first observation of exciton coupling between fullerene chromophores in a chiral environment was written by Kessinger, Roland;Thilgen, Carlo;Mordasini, Tiziana;Diederich, Francois. And the article was included in Helvetica Chimica Acta in 2000.HPLC of Formula: 57412-08-5 The following contents are mentioned in the article:

A series of optically active cis-3 bis-adducts was obtained regio- and diastereoselectively by Bingel macrocyclization of C₆₀ with bis-malonates, which contain optically active tethers derived from 1,2-diols. The absolute configuration of the inherently chiral addition pattern in cis-3 bis-adducts had previously been determined by comparison of calculated and exptl. CD spectra. Full confirmation of these earlier assignments was now obtained by an independent method based on semiempirical AM1 and OM2 calculations combined with ¹H-NMR spectroscopy. It was found computationally that bis-malonates [RCH(O₂CCH₂CO₂Et)]₂, which contain (R,R)- or (S,S)-butane-2,3-diol derivatives as optically active tethers, preferentially form out-out cis-3 bis-adducts of C₆₀ as a single diastereoisomer in which the alkyl groups R adopt a gauche conformation, while the two glycolic H-atoms are in an antiperiplanar (ap) and the ester linkages to the fullerene in a gauche relationship. In contrast, in the less favorable diastereoisomer, which should not form, the alkyl groups R adopt an ap and the H-atoms a gauche conformation, while the ester bridges to the fullerene remain, for geometric reasons, locked in a gauche conformation. According to the OM2 calculations, the geometry of the fully staggered tether in the free bis-malonates closely resembles the conformation of the tether fragment in the bis-adducts formed. These computational predictions were confirmed exptl. by the measurement of the coupling constant between the vicinal glycolic H-atoms in the ¹H-NMR spectrum. This conformational anal. was further supported by the regio- and diastereoselective synthesis of cis-3 bis-adducts from bis-malonates, including tethers derived from cyclic glycol units with a fixed gauche conformation of the alkyl residues R at the glycolic C-atoms. Thus, a bis-malonate of (R,R)-cyclohexane-1,2-diol provided exclusively cis-3 bis-adduct. Incorporation of a tether derived from Me 4,6-O,O-benzylidene-¦Á-D-glucopyranoside into the bis-malonate and Bingel macrocyclization diastereoselectively produced the cis-3 stereoisomer as the only macrocyclic bis-adduct. If the geometry of the alkyl groups R at the glycolic C-atoms of the tether component deviates from a gauche relationship, as in the case of tethers derived from exo cis- and trans-norbornane-2,3-diol or from trans-cyclopentane-1,2-diol, hardly any macrocyclic product is formed. The absolute configurations of the various optically active cis-3 bis-adducts were also assigned by comparison of their CD spectra, which are dominated by the chiroptical contributions of the inherently chiral fullerene chromophore. A strong chiral exciton coupling was observed for optically active macrocyclic cis-3 bis-adducts of C₆₀ with two appended 4-(dimethylamino)benzoate or meso-tetraphenylporphyrin chromophores. Chiral exciton coupling between two fullerene chromophores was observed for the first time in the CD spectrum of the threitol-bridged bis-fullerene. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5HPLC of Formula: 57412-08-5).

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. Precious metals and metal oxides on carrier materials are used in many industrial processes as heterogenous catalysts.HPLC of Formula: 57412-08-5

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

Ultrasensitive gas phase detection of 2,4,6-trinitrotoluene by non-covalently functionalized graphene field effect transistors was written by Gajarushi, Ashwini S.;Surya, Sandeep G.;Walawalkar, Mrinalini G.;Ravikanth, M.;Rao, V. Ramgopal;Subramaniam, Chandramouli. And the article was included in Analyst (Cambridge, United Kingdom) in 2020.Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol The following contents are mentioned in the article:

The high energy d. (4.2 MJ kg^-1) and low vapor pressure (7.2 ¡Á 10^-9 atm) of chem. explosives such as TNT (2,4,6-trinitrotoluene) pose a grave security risk demanding immediate attention. Detection of such hazardous and highly challenging chems. demands specific, ultra-sensitive and rapid detection platforms that can concomitantly transduce the signal as an elec. readout. Although chemo-sensitive strategies have been investigated, the majority of them are restricted to detecting TNT from solutions and are therefore not implementable in real-time, on-field situations. Addressing this demand, we report an ultra-sensitive (parts-per-billion) and rapid (?40 s) detection platform for TNT based on non-covalently functionalized graphene field effect transistors (GFETs). This multi-parametric GFET detector exhibits a reliable and specific modulation in its Dirac point upon exposure to TNT in the vapor phase. The chem. specificity provided by 5-(4-hydroxyphenyl)-10,15,20-tri(p-tolyl) zinc porphyrin (ZnTTPOH) is synergistically combined with the high surface sensitivity of graphene through a non-covalent functionalization approach to realize p-doped GFETs (Zn-GFETs). Such a FET platform exhibits extremely sensitive shifts in Dirac point (¦¤D_P) that correlate with the number of nitro groups present in the analyte. Analytes with mono-, di-, and tri-nitro substituted aromatic mols. exhibit distinctly different ¦¤D_P, leading to unprecedented specificity towards TNT. Addnl., the Dirac point of Zn-GFETs is invariant for common and potential interferons such as acetone and 2-propanol (perfume emulsifiers) thereby validating their practical applicability. Furthermore, the ¦¤D_P is also manifested as changes in the contact potential of GFETs, indicating that sub-monolayer coverage of ZnTTPOH is sufficient to modulate the transfer characteristics of GFETs over an area 1000 times larger than the dopant dimensions. Specifically, ZnTTPOH-functionalized GFETs exhibit p-doped behavior with pos. ¦¤D_P with respect to pristine GFETs. Such p-doped Zn-GFETs undergo selective charge-transfer mediated interactions with TNT resulting in enhanced electron withdrawal from Zn-GFETs. Thus the ¦¤D_P shifts to a higher pos. gate voltage leading to the dichotomous combination of the highest signal generation (1.2 ¡Á 10¹² V mol^-1) with ppb level mol. sensitivity. Significantly, the signal generated due to TNT is 10⁵ times higher in magnitude compared to other potential interferons. The signal reliability is established in cross-sensitivity measurements carried out with a TNT-mDNB (1:10 molar ratio) mixture pointing to high specificity for immediate applications under atmospherically relevant conditions pertaining to homeland security and global safety. This study involved multiple reactions and reactants, such as 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol (cas: 57412-08-5Safety 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. Catalytic transformations have become a mainstay in the toolkit of the synthetic and increasing non-synthetic chemist alike. And they often provide a convenient approach to fine-tuning the performance of known catalysts.Safety of 4-(10,15,20-Tri-p-tolylporphyrin-5-yl)phenol

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

Supramolecular Tetrad Featuring Covalently Linked Bis(porphyrin)-Phthalocyanine Coordinated to Fullerene: Construction and Photochemical Studies was written by Kc, Chandra B.;Lim, Gary N.;Karr, Paul A.;D’Souza, Francis. And the article was included in Chemistry – A European Journal in 2014.Reference of 57412-08-5 The following contents are mentioned in the article:

A multimodular donor-acceptor tetrad featuring a bis(zinc porphyrin)-(zinc phthalocyanine) ((ZnP-ZnP)-ZnPc) triad and bis-pyridine-functionalized fullerene was assembled by a “two-point” binding strategy, and investigated as a charge-separating photosynthetic antenna-reaction center mimic. The spectral and computational studies suggested that the mode of binding of the bis-pyridine-functionalized fullerene involves either one of the zinc porphyrin and zinc phthalocyanine (Pc) entities of the triad or both zinc porphyrin entities leaving ZnPc unbound. The binding constant evaluated by constructing a Benesi-Hildebrand plot by using the optical data was found to be 1.17¡Á10⁵ M^-1, whereas a plot of “mole-ratio” method revealed a 1:1 stoichiometry for the supramol. tetrad. The mode of binding was further supported by differential pulse voltammetry studies, in which redox modulation of both zinc porphyrin and zinc phthalocyanine entities was observed The geometry of the tetrad was deduced by B3LYP/6-31G* optimization, whereas the energy levels for different photochem. events was established by using data from the optical absorption and emission, and electrochem. studies. Excitation of the zinc porphyrin entity of the triad and tetrad revealed ultrafast singlet-singlet energy transfer to the appended zinc phthalocyanine. The estimated rate of energy transfer (k_ENT) in the case of the triad was found to be 7.5¡Á10¹¹ s^-1 in toluene and 6.3¡Á10¹¹ s^-1 in o-dichlorobenzene, resp. As was predicted from the energy levels, photoinduced electron transfer from the energy-transfer product, i.e., singlet-excited zinc phthalocyanine to fullerene was verified from the femtosecond-transient spectral studies, both in o-dichlorobenzene and toluene. Transient bands corresponding to ZnPc⁺ in the 850 nm range and C₆₀^– in the 1020 nm range were clearly observed The rate of charge separation, k_CS, and rate of charge recombination, k_CR, for the (ZnP-ZnP)-ZnPc⁺:Py₂C₆₀^– radical ion pair (from the time profile of 849 nm peak) were found to be 2.20¡Á10¹¹ and 6.10¡Á10⁸ s^-1 in toluene, and 6.82¡Á10¹¹ and 1.20¡Á10⁹ s^-1 in o-dichlorobenzene, resp. These results revealed efficient energy transfer followed by charge separation in the newly assembled supramol. tetrad. 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. 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. 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.Reference of 57412-08-5

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

Photoregulation of Fluorescence in a Porphyrinic Dithienylethene Photochrome was written by Norsten, Tyler B.;Branda, Neil R.. And the article was included in Journal of the American Chemical Society in 2001.Reference of 57412-08-5 The following contents are mentioned in the article:

Synthesis and optical characterization was reported of a photochromic hybrid (I), where porphyrin macrocycles are attached to the ends of the 1,2-bis(3-thienyl)cyclopentene backbone. The relationship between the luminescence intensity of the porphyrins and the state of the photoswitch (open or closed) was clearly illustrated. The absorption spectrum of bis(porphyrin) I in the UV-vis region was essentially equivalent to the sum of the absorption spectra of the mol.’s components indicating that there was little change in the ground state of either chromophore upon covalent linking. Irradiation of I at 313 nm resulted in an immediate increase in the absorption intensity in the visible spectral region (500-625 nm) due to the appearance of the absorption bands of its closed isomer. After 4 min of continuous irradiation (2 x 10-4 M, toluene-d₈), the photostationary state was reached and was identified by ¹H NMR spectroscopy as consisting of 69% of the closed isomer. The ease at which this photochem. ring closure occurs was impressive in the light of the fact that porphyrins have been reported, on occasion, to inhibit photochromic processes. Irradiation of the closed isomer at ¦Ë >480 nm resulted in the rapid ring-opening photoreaction and e regeneration of the original absorption spectrum corresponding to I. Luminescence of the porphyrin macrocycles in I and its closed isomer greatly depended on the state of the 1,2-(dithienyl)cyclopentene photoswitch. In the open form it displayed significant fluorescence intensity at 655 nm when excited at 430 nm. When the photocyclization reaction was carried out by irradiating at 313 nm, the nonfluorescent closed form was produced. Back irradiation at ¦Ë >480 nm regenerated closed isomer I and restored the original emission spectrum. The intensity of the porphyrins fluorescence was conveniently regulated by toggling between open and closed isomers by alternate irradiation at 313 nm and >480 nm clearly demonstrating that I can act as a system for reversible data processing using fluorescence as the detection method. 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. 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. 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.Reference of 57412-08-5

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

“Axial-Bonding”-Type Hybrid Porphyrin Arrays: Synthesis, Spectroscopy, Electrochemistry, and Singlet State Properties was written by Giribabu, L.;Rao, T. Anita;Maiya, Bhaskar G.. And the article was included in Inorganic Chemistry in 1999.Electric Literature of C47H36N4O The following contents are mentioned in the article:

P(V), Ge(IV), and Sn(IV) porphyrin-based, axial-bonding-type hybrid trimers were readily constructed by employing a new building-block approach. The approach is modular in nature, and it involves simple inorganic reactions such as axial bond formation of main group element containing porphyrins and insertion of metal/metalloid ions into the porphyrin cavity. The architecture of these arrays is such that, while a P(V), Ge(IV), or Sn(IV) complex of meso-5,10,15,20-(tetratolyl)porphyrin forms the basal scaffolding unit, the free-base, vanadyl, Co(II), Ni(II), Cu(II), or Zn(II) porphyrins occupy the two axial sites via an aryloxy bridge. Synthesis of an all-P array containing three P(V) subunits also was accomplished. Each new porphyrin array studied was fully characterized by various phys. methods that include mass (FAB), UV-visible, IR, fluorescence, ESR, and ¹H and ³¹P NMR (NMR; 1-dimensional and 2D) spectroscopies and cyclic voltammetry. The UV-visible and ESR spectral parameters and also the redox potential data suggest that there exists no interaction between the ¦Ð-planes of the constituent monomeric porphyrins in these arrays. Detailed ¹H NMR studies carried out with the trimers containing diamagnetic porphyrins reveal characteristic shielding/deshielding effects for the various protons on the axial porphyrin subunits. The ground state data, as probed by the spectroscopic and electrochem. techniques, collectively indicate that there exists a sym. but nonparallel disposition of the two axial porphyrins with respect to plane of the central porphyrin. Singlet state activity of the photoactive trimers was probed by the steady state fluorescence method with selective excitation into the bands corresponding to the two constituent monomeric species. Anal. of the fluorescence emission and excitation spectral data suggests the occurrence of electronic energy transfer as well as photoinduced electron transfer reactions in trimers endowed with free-base or Zn(II) porphyrin axial subunits. Efficiencies of the excited state processes of these trimeric arrays are dependent on the type of metal/metalloid ions present in the porphyrin crevice. 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. 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. 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.Electric Literature of C47H36N4O

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

Multiporphyrin Arrays on Cyclophosphazene Scaffolds: Synthesis and Studies was written by Pareek, Yogita;Ravikanth, Mangalampalli. And the article was included in Chemistry – A European Journal in 2012.SDS of cas: 57412-08-5 The following contents are mentioned in the article:

The stable and robust cyclotriphosphazene and cyclotetraphosphazene rings were used as scaffolds to prepare hexa- and octaporphyrin arrays by treating N₃P₃Cl₆ and N₄P₄Cl₈, resp., with 5-(4-hydroxyphenyl)-10,15,20-tri(p-tolyl)porphyrin (N₄ core) or with its thiaporphyrin analogs (N₃S and N₂S₂ cores) in THF in the presence of Cs₂CO₃ under simple reaction conditions. Thiaporphyrins were examined in addition to the normal porphyrin to tune the electronic properties of the resultant arrays. Observation of the mol. ion peaks in the mass spectra confirmed the mol. structures of the arrays. 1-dimensional and 2-dimensional NMR techniques were employed to characterize the multiporphyrin arrays. The ¹H NMR spectra of the multiporphyrin arrays each show a systematic set of signals, indicating that the porphyrin units are arranged in a sym. fashion around the cyclophosphazene rings. All signals in the ¹H NMR spectra were assigned with the aid of COSY and NOESY experiments The protons of each porphyrin unit are subject to upfield and downfield shifts because of the ring-current effects of neighboring porphyrin units. Optical, electrochem., and fluorescence studies of the arrays indicated that the porphyrin units retain their independent ground- and excited-state characteristics. Cu^II and Ni^II derivatives of hexaporphyrin and octaporphyrin arrays containing N₄ porphyrin units and N₃S porphyrin units were synthesized, and complete metalation of the arrays was confirmed by their mass spectra and by detailed NMR characterization of the Ni^II derivatives of hexa- and octaporphyrin arrays containing N₄ porphyrin units. Electrochem. studies indicated that Cu^II and Ni^II ions present in the thiaporphyrin units of the arrays can be stabilized in the +1 oxidation state, which is not possible with arrays containing normal porphyrin units. 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. 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.SDS of cas: 57412-08-5

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