Day: October 23, 2020

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO111,mainly used in chemical industry, its synthesis route is as follows.,246047-72-3

General procedure: To a Schlenk flask charged with Grubbs? catalyst 2 (0.42 g,0.50 mmol) and CuCl (0.05 g, 0.50 mmol), compound 14 (or 15, 16)(0.6 mmol) in 10 mL dry dichloromethane was added at room temperature under N2. The resulting mixture was stirred for 40 min at 40 C. After being cooled to room temperature, the reaction mixturewas filtered and the clear filtrate was collected. The solvent from the filtrate was evaporated under vacuum to give a residue. The residue was purified by silica gel chromatography (CH2Cl2:ethyl acetate 2:1 or pentanes: ethyl acetate 3:2 or 1:1) to givethe desired product as a green crystalline solid.

With the complex challenges of chemical substances, we look forward to future research findings about (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium,belong ruthenium-catalysts compound

Reference£º
Article; Zhang, Yiran; Shao, Mingbo; Zhang, Huizhu; Li, Yuqing; Liu, Dongyu; Cheng, Yu; Liu, Guiyan; Wang, Jianhui; Journal of Organometallic Chemistry; vol. 756; (2014); p. 1 – 9;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

As a common heterocyclic compound, it belongs to ruthenium-catalysts compound, name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, and cas is 246047-72-3, its synthesis route is as follows.,246047-72-3

A suspension of 1.00 g (1.19 mmol) of [RuCl2(PCy3)(ImH2Mes)(phenylmethylene)] (commercially available from Sigma- Aldrich Inc., St. Louis, USA), 0.15 g (1.47 mmol) of copper chloride and 0.30 g (1.47 mmol) of 2-[((?,Z)-2-propenyl)-phenoxy]-propionarnide as a 3.5:1 mixture of E/Z-isomers in 75 ml of dichloromethane was stirred for 30 min at 400C. The reaction mixture was evaporated to dryness at 40C/10 mbar. The crude title product was dissolved in 100 ml of ethyl acetate and the formed suspension filtered. The filtrate was evaporated to dryness at 40 C/10 mbar. The crude title product was purified by repeated digestion with pentane / THF to yield 0.41 g (53%) of the title compound as a green solid.MS: 655.1 (M+). Anal, calcd. for C3IH37Cl2N3O2Ru: C, 56.79; H, 5.69; N, 6.41; Cl, 10.81. Found: C, 56.23; H, 5.59; N, 6.16; Cl, 10.84.Crystals of the title compound suitable for X-ray crystal structure analysis were grown by vapor diffusion of pentane into a solution of 10 mg of [RuCl2(=CH(o-OCH(Me)CONH2) Ph)(ImH2MeS)] in 0.5 ml of tetrahydrofuran at room temperature.Fig. 3 shows a labeled view of the complex of formula E.

With the complex challenges of chemical substances, we look forward to future research findings about 246047-72-3,belong ruthenium-catalysts compound

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; WO2009/124853; (2009); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO437,mainly used in chemical industry, its synthesis route is as follows.,246047-72-3

After a 50 mL two-necked flask was purged with argon, ligand 5c (10 mmol), CuCl (30 mmol, 3 eq) and 30 mL of dry DCM were sequentially added and the mixture was purged three times with argon to protect the closed system with argon balloon. Ruthenium complex 1b (12 mmol) was added under argon atmosphere, and the reaction was carried out at room temperature for 0.5 hour. After the reaction was over, silica gel was added to the filtrate to prepare a sand product. The crude product was obtained by silica gel column chromatography and then washed with methanol or pentane-DCM to obtain a yellow-green solid product 6c in a yield of 96%.

With the synthetic route has been constantly updated, we look forward to future research findings about (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium,belong ruthenium-catalysts compound

Reference£º
Patent; Zannan Science And Technology (Shanghai) Co., Ltd.; Zhan Zhengyun; (102 pag.)CN104262403; (2017); B;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

15529-49-4, Dichlorotris(triphenylphosphino)ruthenium (II) is a ruthenium-catalysts compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A Schlenk flask was loaded with [Ru(PPh3)3(Cl)2] (2.0270 g,2.114 mmol) and bis(3-aminopropyl)phenylphosphine (1) (0.4816 g,2.147 mmol), to which was added 17 ml of anhydrous toluene to generate a yellow suspension. The mixture was stirred in an oil bath at 110 C, for two hours. The yellow suspension was then stirred for 16 h at room temperature, after which time the solid was isolated via canula filtration and washed with 100 ml of anhydrous diethyl ether 3 times. The solid was dried under vacuum for 72 h. Isolated mass 1.20 g, 86% yield. NMR data – 1H NMR (CDCl3, delta): 7.71 (m with appearance of t,6 H) 7.43 (m with appearnce of t, 2 H), 7.14-6.94 (m, 10 H), 6.88 (mwith appearance of t, 2 H) 4.25, (br, 2H, NH), 3.39 (br, 2H, NH and CH),3.08 (br, 1H, CH), 2.23-1.81 (m, 10H, 9CH and NH), 0.68 (br, 1H, CH). 13C{1H} NMR (CDCl3, delta): 138.7 (d, i-C of PPh), 137.0 (d, i-C of PPh3),134.0 (d, o-C of PPh3), 131.2 (d, o-C of PPh), 128.4 (s, p-C of PPh3),128.2 (s, p-C of PPh), 127.7 (d, m-C of PPh), 127.5 (d, m-C of PPh3),42.3, 40.5, 33.3 (d, 1JPC=26.9 Hz), 27.9 (d, 1JPC=27.8 Hz), 26.1,25.4. 31P{1H} NMR (CDCl3, delta): 48.8 (d, 2JPP=34 Hz), 32.65 (d,2JPP=34 Hz). Elemental analysis calculated (%) for C30H36Cl2N2P2Ru:C 53.93, H 5.51, N 4.25; found: C 53.72, H 5.51, N 4.52 Product is soluble in dichloromethane and chloroform, but insoluble in methanol,ethanol, isopropanol and acetonitrile. The product is air sensitive in solution, turning green on exposure to air. A sample of the solid exposed to air for 2 h and returned to the glove box was analysed by NMR; no new unassigned signals were observed in either the 1H or 31P NMR spectra. Single crystals of [Ru(1)PPh3(Cl)2] were grown by layering hexane onto a DCM solution of the complex to enable slow diffusion of the solvents, 15529-49-4

15529-49-4 Dichlorotris(triphenylphosphino)ruthenium (II) 11007548, aruthenium-catalysts compound, is more and more widely used in various fields.

Reference£º
Article; Braden, Drew J.; Cariou, Renan; Shabaker, John W.; Taylor, Russell A.; Applied Catalysis A: General; vol. 570; (2019); p. 367 – 375;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

As a common heterocyclic compound, it belongs to ruthenium-catalysts compound, name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, and cas is 246047-72-3, its synthesis route is as follows.,246047-72-3

A suspension of 790 mg (0.93 mmol) of [RuCl2(PCy3) (ImH2Mes)(phenylmethy- lene)], 95 mg (0.96 mmol) copper chloride and 196 mg (1.03 mmol) 4-chloro-8-vinyl- quinoline in 70 ml methylene chloride was stirred at 300C for 90 min. The reaction mixture was evaporated to dryness and the isolated crude product purified by silica gel chromatography (hexane / ethyl acetat 5:2) and finally digested in 20 ml pentane at room temperature for 30 min to yield 311 mg (51%) of the title compound as green crystals. MS: 655.0 (M+). 1H-NMR (300 MHz, CD2Cl2): 2.35 (s, 6H); 2.39 (s, 12H); 4.04 (s, 4H); 7.00 (s, 4H); 7.25 (d, J=5.3Hz, IH); 7.43 (dd, J=8.2, 7.3Hz, IH); 7.56 (dd, J=7.1, 0.7Hz, IH); 8.13 (d, J=5.3Hz, IH); 8.41 (dd, J=8.2, 0.7Hz, IH); 16.95 (s, IH). Anal, calcd. for C31H32N3Cl3Ru: C, 56.93; H, 4.93; N, 6.42; Cl, 16.26. Found: C, 56.59; H, 5.04; N, 6.02; Cl, 15.49.

With the complex challenges of chemical substances, we look forward to future research findings about 246047-72-3,belong ruthenium-catalysts compound

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; WO2008/644; (2008); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Dichlorotris(triphenylphosphino)ruthenium (II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 15529-49-4, its synthesis route is as follows.,15529-49-4

under an inert atmosphere,0.48 g (PPh3)3RuCl2 (0.5 mmol) and 0.14 g of o-Ph2PC6H4NH2 (0.5 mmol) were weighed and placed in a Schlenk bottle (100 mL) containing about 40 mL of toluene, and heated to 70 C in a sealed state. After reacting overnight, the reaction solution was cooled to room temperature, collected by filtration, and the resulting precipitate was washed with n-hexane, dried under reduced pressure, and weighed 0.31 g (yield 87%) to give intermediate i[(PPh3)(o-Ph2PC6H4NH2) RuCl2]2

With the complex challenges of chemical substances, we look forward to future research findings about Dichlorotris(triphenylphosphino)ruthenium (II)

Reference£º
Patent; Chizhou College; Fang Xiaolong; Wang Xin; Duan Ning; (17 pag.)CN110003283; (2019); A;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium, as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 246047-72-3, its synthesis route is as follows.,246047-72-3

Grubbs second generation catalyst (100 mg, 0.117 mmol), 2-[(2,4,6-trimethylphenylimino)methyl]phenol (pKa: 8.84+/-0.30) (0.117 mmol), silver (I) carbonate (16.27 mg, 0.058 mmol), and THF (2 ml) were reacted at room temperature during 2 h. The solvent was evaporated and crude reaction product purified on chromatography column to give an orange-brown complex. Yield 30%.

With the complex challenges of chemical substances, we look forward to future research findings about (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium

Reference£º
Patent; Telene S.A.S.; US2011/137043; (2011); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Dichlorotris(triphenylphosphino)ruthenium (II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 15529-49-4, its synthesis route is as follows.,15529-49-4

A Schlenk flask was loaded with [Ru(PPh3)3(Cl)2] (1.2156 g,1.268 mmol) and 2,6-bis(2-benzimidazolyl)pyridine (4) (0.4088 g,1.313 mmol), to which was added 25 ml of anhydrous toluene. The mixture was stirred in an oil bath at 110 C, for two hours, during which time a red-brown precipitate had formed. The suspension was then stirred for 16 h at room temperature, after which time the solid was isolated via canula filtration and washed with 100 ml of anhydrous diethyl ether 3 times. The solid was dried under vacuum for 72 h. Isolated mass 1.07 g, 84% yield. NMR data – 1H NMR (d4-methanol, delta):8.53 (m, 2 H), 7.60 (t, J=8.0 Hz, 1 H), 7.40 (m, 8 H), 7.13 (m, 18H,PPh3), 6.88 (t, J=7.7 Hz, 12H, PPh3), NH signals not observed due to rapid H/D exchange with CD3OD. 13C{1H} NMR (d4-methanol, delta):152.7, 152.1, 144.1 and 135.7 (quaternary C), 134.4 (t, o-C of PPh3),133.3 (aromatic CeH), 132.4 (t, i-C of PPh3),130.4 (s, p-C of PPh3),128.8 (t, m-C of PPh3), 126.8, 124.5, 122.9, 122.1 and 113.6 (aromaticCeH). 31P{1H} NMR (d4-methanol, delta): 22.1 (s). Elemental analysis calculated (%) for C55H43Cl2N5P2Ru: C 65.54, H 4.30, N 6.95; found: C65.40, H 4.42, N 7.03. Product is soluble in methanol, poorly soluble in ethanol, but insoluble in acetone, acetonitrile and dichloromethane. A d4-MeOH NMR sample exposed to air was observed to form crystal safter 3 h. However, no decomposition signals were observed in the NMR spectrum. A sample of the solid exposed to air for 2 h and returned to the glove box was analysed by NMR; new unassigned signals appeared in both the 1H and 31P NMR spectra

With the complex challenges of chemical substances, we look forward to future research findings about Dichlorotris(triphenylphosphino)ruthenium (II)

Reference£º
Article; Braden, Drew J.; Cariou, Renan; Shabaker, John W.; Taylor, Russell A.; Applied Catalysis A: General; vol. 570; (2019); p. 367 – 375;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

It is a common heterocyclic compound, the ruthenium-catalysts compound, Dichlorotris(triphenylphosphino)ruthenium (II), cas is 15529-49-4 its synthesis route is as follows.,15529-49-4

General procedure: The same basic method, as described here for [RuCl(PPh3)2(LMe,H)]Cl, was followed for all the complexes in this study. Asuspension of [RuCl2(PPh3)3] (0.36 g, 0.4 mmol) and LMe,H (0.15 g,0.4 mmol) in dry dichloromethane (15 cm3) was stirred for 3 h atroom temperature. This yielded an orange precipitate, which wascollected by filtration. Alternatively, the products 3-6 were solublein the reaction mixture, and were precipitated from it by careful addition of diethyl ether. In either case, the resultant solids werewashed repeatedly with diethyl ether to remove excess PPh3, thendried in vacuo.

With the complex challenges of chemical substances, we look forward to future research findings about Dichlorotris(triphenylphosphino)ruthenium (II)

Reference£º
Article; Roberts, Thomas D.; Halcrow, Malcolm A.; Polyhedron; vol. 103; (2016); p. 79 – 86;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO218,mainly used in chemical industry, its synthesis route is as follows.,246047-72-3

To a 40 mL scintillation vial equipped with a magnetic stir bar was added C848 (0.500 g, 0.589 mmol), ^-toluenesulfonyl chloride (0.056 g, 0.30 mmol), tetrahydrothiophene 1- oxide (0.307 g, 2.94 mmol), and dichloromethane (4 mL). The reaction was stirred at ambient temperature for one hour then diluted with diethyl ether (25 mL). The precipitate was isolated by filtration, washed with diethyl ether (2 x 10 mL) followed by hexanes (1 x 15 mL) then dried in vacuum to afford C673 (0.248 g, 62.6% yield). [000131] 1H MR (400 MHz, CDCh) delta 16.12 (s, 1H), 7.82 (d, J = 7.7 Hz, 2H), 7.55 (t, J = 7.2 Hz, 1H), 7.23 (t, J = 7.7 Hz, 2H), 7.11 (br s, 2H), 6.93 (s, 1H), 6.29 (s, 1H), 4.11 – 3.94 (m, 3H), 3.86 – 3.76 (m, 1H), 2.72 (s, 3H), 2.69 (s, 3H), 2.64 (s, 3H), 2.62 – 2.45 (m, 3H), 2.35 (s, 3H), 2.27 – 2.17 (m, 1H), 2.15 (s, 3H), 2.07 (s, 3H), 2.05 – 1.91 (m, 2H), 1.84 – 1.68 (m, 2H).

With the complex challenges of chemical substances, we look forward to future research findings about (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium,belong ruthenium-catalysts compound

Reference£º
Patent; MATERIA, INC.; JOHNS, Adam, M.; (112 pag.)WO2018/38928; (2018); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI