Month: June 2021

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 301224-40-8, Name is (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride, molecular formula is C31H38Cl2N2ORu. In a Article，once mentioned of 301224-40-8, category: ruthenium-catalysts

A one-pot reaction to synthesize functionalized 2H-azirines through visible-light-mediated ring contraction and olefin metathesis of isoxazoles is described. Hoveyda-Grubbs II catalyst was found to function as a photocatalyst for these transformations, allowing these processes to be carried out in a one-pot manner. This study offers a new entry for the application of Grubbs catalysts as efficient photocatalysts and the possibilities of carrying out other photoreactions and olefin metathesis in a one-pot process.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.category: ruthenium-catalysts. In my other articles, you can also check out more blogs about 301224-40-8

Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 246047-72-3, Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, molecular formula is C46H65Cl2N2PRu. In a Article，once mentioned of 246047-72-3, Computed Properties of C46H65Cl2N2PRu

The (3S,5R) and (3R,5R) isomers of the title compound were synthesized from enantiopure epoxide chiral building blocks readily accessible from D-gluconolactone. The former (a syn-1,3-diol) gave 1H and 13C NMR spectroscopic data and optical rotation in good agreement with those reported for the natural product, whereas distinct differences were found with the data for the latter (an anti-1,3-diol). These results unambiguously showed that the absolute configuration of the natural product must be (3S,5R).

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Computed Properties of C46H65Cl2N2PRu. In my other articles, you can also check out more blogs about 246047-72-3

Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Application of 15746-57-3, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 15746-57-3, C20H16Cl2N4Ru. A document type is Article, introducing its new discovery.

An electrocatalytically active cobalt diimine monoxime monoximate complex was deprotonated by 1-methylimidazole affording a doubly deprotonated complex that serves as a versatile precursor for synthesis of a variety of multimetallic complexes with Co-Zn, -Cd, -Mn and -Ru coordination. These complexes were studied using a combination of spectroscopic, analytical and electrochemical techniques, revealing the electronic and structural parameters unique to this new class of compounds. The ability of these complexes to catalyze proton reduction was also investigated. These complexes are homogeneous electrocatalysts for the hydrogen evolution reaction through reduction of [NEt3H][BPh4] in CH3CN, however decompose under extended electrolysis conditions.

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.10049-08-8, Name is Ruthenium(III) chloride, molecular formula is Cl3Ru. In a Article，once mentioned of 10049-08-8, Computed Properties of Cl3Ru

Epoxidation of cyclohexene, 1-octene and styrene by N-methylmorpholine N-oxide in the presence of catalytic amounts of RuCl3 shows first order dependence each in N-oxide and the catalyst.The order in cyclohexene and 1-octene is variable being zero at high concentrations and one at low concentrations.In the case of styrene the order is fractional at all concentrations.The active oxidant is RuV=O species resulting from the oxidation of RuCl3 by NMO.On the basis of experimental observations a reaction mechanism is proposed.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Computed Properties of Cl3Ru, you can also check out more blogs about10049-08-8

Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Synthetic Route of 10049-08-8, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 10049-08-8, Cl3Ru. A document type is Article, introducing its new discovery.

(Chemical Equation Presented) A highly enantioselective methodology allows the preparation of alpha,beta-unsaturated ketones that contain a new stereogenic center at the C5 position. This approach is realized through the title reaction in the presence of chlorotrimethylsilane as a Lewis acid and a rhodium/(S)-binap complex as the catalyst followed by acidic hydrolysis (see scheme). binap = 2,2?-bis(diphenylphosphanyl)-1,1?-binaphthyl.

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Application of 37366-09-9, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 37366-09-9, C12H12Cl4Ru2. A document type is Article, introducing its new discovery.

Reactions of the ruthenium(II) precursors [RuCl2(C6H6)]2 and [RuI2(p-cymene)]2 with the aminophosphine phosphinite ligands (AMPP) (S)-Cy,Cy-ProNOP and (S)-Ph,Ph-ProNOP gave the cationic complexes [RuCl(C6H6){(S)-Cy,Cy-ProNOP}]Cl 1, [RuCl(C6H6){(S)-Ph,Ph-ProNOP}]Cl 2, and [RuI(p-cymene){(S)-Ph,Ph-ProNOP}]l 3 in good to high yields. The reactions proceed in two steps via a monodentate intermediate in which the PO moiety of the AMPP diphosphine coordinates to the ruthenium prior to the chelation through PN coordination, giving the expected bidentate complexes. Neutral complexes have been synthesized starting from the Ru(COD)(2-methylallyl)2 precursor. Accordingly, complexes Ru{(S)-Ph,Ph-ProNOP}(2-methylallyl)2 4 and Ru{(S)-Ph,Ph-oxoProNOP}(2-methylallyl)2 5 are obtained through reaction with (S)-Ph,Ph-ProNOP and (S)-Ph,Ph-oxoProNOP, respectively, by progressive precipitation in the reaction mixtures. X-ray data are given for the neutral methylallyl complex Ru{(S)-Ph,Ph-ProNOP}(2-methylallyl)2 4. Complexes Ru{(S)-Cy,Cy-ProNOP}(OCOCH3)2 6 and Ru{(S)-Cy,Cy-ProNOP}(OCOCF3)2 7 were obtained through substitution of the COD ligand in Ru(COD)(OCOCH3)2 and Ru2(COD)2(OCOCF3)4, respectively. Neutral acetato and trifluoroacetato complexes Ru{(S)-Ph,Ph-ProNOP}(OCOCH3)2 8, Ru{(S)-Ph,Ph-oxoProNOP}(OCOCH3)2 9, Ru{(S)-Ph,Ph-ProNOP}(OCOCF3)2 10, and Ru{(S)-Ph,Ph-oxoProNOP}(OCOCF3)2 11 were synthesized through protonation of the corresponding methylallyl ruthenium complexes with the appropriate hydracid. All the catalyst precursors synthesized are mixtures of diastereoisomers and have been applied in asymmetric hydrogenation of three alpha-functionalized ketones, i.e., dihydro-2,4-dimethyl-2,3-furandione 12, ethylpyruvate 13, and methylbenzoylformate 14. Enantiomeric excesses (ee) up to 79.5, 63, and 48% were obtained, respectively, for the three substrates. CNRS-Gauthier-Villars.

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Reference of 37366-09-9, An article , which mentions 37366-09-9, molecular formula is C12H12Cl4Ru2. The compound – Dichloro(benzene)ruthenium(II) dimer played an important role in people’s production and life.

The compound CH2=C(CH2SnMe3)2 1 was readily made (61 percent yield) from K2(tmm) (tmm = trimethylenemethane) and SnMe3Cl.It serves as a new and efficient entry to tmm metal complexes.The arene complexes <2> (M = Ru or Os) reacted with 1 to give allylmetal complexes (arene)> 2a-2e and sandwich-like compounds 3a-3e (M = Ru, arene = C6H6 a, C6Me6 b, or p-MeC6H4CHMe2 c; M = Os, arene = C6H6 d or p-MeC6H4CHMe2 e).The cymene complexes 3c and 3e can also be made using the combination CH2=C(CH2Cl)2-Mg-tetrahydrofuran as tmmsource.Treatment of <2> with 1 produced in high yield, and the carbonyl compounds <2> (M = Ru or Os) afforded the tricarbonyl complexes (M = Ru or Os) in good yields.X-Ray crystal structure determinations have been made for 2a, 3a and .The data for the last two show the tmm ligand to be more firmly bonded in the arene complex.

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Synthetic Route of 37366-09-9, An article , which mentions 37366-09-9, molecular formula is C12H12Cl4Ru2. The compound – Dichloro(benzene)ruthenium(II) dimer played an important role in people’s production and life.

A series of organometallic arene platinum group metal complexes of the type [(eta6-arene)Ru(L)Cl]PF6 {arene = benzene; p-cymene and hexamethylbenzene, L = N, N? ligands} and [(eta5-Cp*) M(L)Cl]PF6 (where M = Rh(iii) and Ir(iii), L = N, N? ligands) were synthesized. All complexes were isolated as hexafluoridophosphate salts and characterised by elemental analysis, infrared and NMR spectroscopy. The molecular structures of three representative complexes 1, 4 and 9 were determined by single crystal X-ray crystallography. They have a “piano stool” geometry with eta5 and eta6 coordination of the arene ligands. Trypan blue exclusion and DNA fragmentation assays of the synthesized complexes displayed the potent anticancer properties of complexes 5, 6 and 9. Compound 6 shows the highest antitumor activity with a T/C value of 211%.

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Application of 92361-49-4, An article , which mentions 92361-49-4, molecular formula is C46H45ClP2Ru. The compound – Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II) played an important role in people’s production and life.

The dynamic behavior in solution of eight mono-hapto tetraphosphorus transition metal-complexes, trans-[Ru(dppm)2(H) (I·1-P4)]BF4 ([1]BF4), trans-[Ru(dppe)2(H)(I·1-P4)] BF4 ([2]BF4), [CpRu(PPh3) 2(I·1-P4)]PF6 ([3]PF6), [CpOs(PPh3)2(I· 1-P4)]PF6 ([4]PF6), [Cp*Ru(PPh3)2(I·1-P 4)]PF6 ([5]PF6), [Cp*Ru(dppe) (I·1-P4)]PF6 ([6]PF6), [Cp*Fe(dppe)(I·1-P4)]PF6 ([7]PF6), [(triphos)Re(CO)2(I·1- P4)]OTf ([8]OTf), and of three bimetallic Ru(mu, I·1:2-P4)Pt species [{Ru(dppm) 2(H)}(mu,I·1:2-P4){Pt(PPh 3)2}]BF4 ([1-Pt]BF4), [{Ru(dppe)2(H)}(mu,I·1:2-P 4){Pt(PPh3)2}]BF4 ([2-Pt]BF 4), [{CpRu(PPh3)2)}(mu,I· 1:2-P4){Pt(PPh3)2}]BF4 ([3-Pt]BF4), [dppm=bis(diphenylphosphanyl)methane; dppe=1,2-bis(diphenylphosphanyl)ethane; triphos=1,1,1- tris(diphenylphosphanylmethyl)ethane; Cp=I·5-C 5H5; Cp=I·5-C 5Me5] was studied by variable-temperature (VT) NMR and 31P{1H} exchange spectroscopy (EXSY). For most of the mononuclear species, NMR spectroscopy allowed to ascertain that the metal-coordinated P4 molecule experiences a dynamic process consisting, apart from the free rotation about the M-P4 axis, in a tumbling movement of the P4 cage while remaining chemically coordinated to the central metal. EXSY and VT 31P NMR experiments showed that also the binuclear complex cations [1-Pt]+-[3-Pt] + are subjected to molecular motions featured by the shift of each metal from one P to an adjacent one of the P4 moiety. The relative mobility of the metal fragments (Ru vs. Pt) was found to depend on the co-ligands of the binuclear complexes. For complexes [2]BF4 and [3]PF6, MAS, 31P NMR experiments revealed that the dynamic processes observed in solution (i.e., rotation and tumbling) may take place also in the solid state. The activation parameters for the dynamic processes of complexes 1+, 2+, 3+, 4+, 6 +, 8+ in solution, as well as the X-ray structures of 2+, 3+, 5+, 6+ are also reported. The data collected suggest that metal-coordinated P4 should not be considered as a static ligand in solution and in the solid state. A detailed solution and solid-state NMR dynamics study on mono- and bimetallic transition metal complexes, coordinating white phosphorus in I·1- P4 fashion, has revealed that this ligand is endowed of motions which depend on the nature of co-ligands and geometries around the metals. Activation parameters of the processes and X-ray crystal structures were also obtained (see figure). Copyright

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Synthetic Route of 15746-57-3. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 15746-57-3, Name is Cis-Dichlorobis(2,2′-bipyridine)ruthenium(II). In a document type is Article, introducing its new discovery.

Ruthenium possesses several favorable properties suited to rational anticancer drug design when conjugation with the porphyrin moiety was accomplished through peripheral pyridyl rings. The ruthenium porphyrin conjugates are soluble at least moderately in aqueous solution and are thus suitable for biological investigations in particular for cytotoxicity and photocyotoxicity tests. In present study the compound 5,10,15,20 tetra pyridyl porphyrin coordinated to four [Ru (bipy)2 Cl]+ groups (meso-5,10,15,20 tetrakis {4(chloro-bis-bipyridyl ruthenium(II)) pyridyl} porphyrin) is synthesized by modified Alder method. This compound is characterized by UV-Visible Spectroscopy, FT-IR Spectroscopy, 1H-NMR spectroscopy, Fluorescence Spectroscopy and Cyclic Voltametry. In-Vitro anticancer activity of the compounds have been evaluated by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay method. The results show that the compound is cytotoxic against human lymphoma cancer cells.

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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI