Category: 50982-12-2

The ruthenium-catalysts compound, name is Dichloro(cycloocta-1,5-diene)ruthenium(II),cas is 50982-12-2, mainly used in chemical industry, its synthesis route is as follows.

Separately, 200 ml of well dried tetrahydrofuran was fed to a 500 ml flask whose inside had been substituted by argon, and 5 g of dichloro(cyclooctadienyl)ruthenium was injected into the flask and well mixed with the above tetrahydrofuran to obtain a suspension. This suspension was cooled to -78 C. in a stream of argon, and 15 ml of the above synthesized tetrahydrofuran solution of trifluoromethyl cyclopentadienyl sodium was added dropwise to the suspension over 1 hour. The reaction mixture was further stirred at -78 C. for 3 hours and returned to room temperature under agitation over 12 hours. After the reaction mixture was let pass through a neutral alumina column in a stream of argon to be purified and concentrated, it was purified again by a neutral alumina column to obtain 0.2 g of bis(trifluoromethylcyclopentadienyl)ruthenium (yield rate of 30%).

As the rapid development of chemical substances, we look forward to future research findings about 50982-12-2

Reference£º
Patent; JSR Corporation; US2006/240190; (2006); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

A common heterocyclic compound, the ruthenium-catalysts compound, name is Dichloro(cycloocta-1,5-diene)ruthenium(II),cas is 50982-12-2, mainly used in chemical industry, its synthesis route is as follows.

Next, 31.56 g of this (eta-1,5-cyclooctadiene)ruthenium(II) dichloride, 34.97 g of sodium carbonate, 28 mL of 2,4-pentanedione and 100 mL of N,N-dimethylformamide were placed in a nitrogen-flushed three-neck flask and stirred at 140 C. for 1 hour. Following reaction completion, the solution was cooled to room temperature, then alumina column chromatography (developing solvent: diethyl ether) was carried out. The resulting solution was concentrated, after which 120 mL of water was added and the solution was left at rest for 3 hours. The crystals that precipitated out were collected by filtration, and after being washed with water, were dried in vacuo. 46.53 g of bis(2,4-pentanedionato)(eta-1,5-cyclooctadiene)ruthenium(II) was obtained as an orangey-yellow solid. The yield was 94 wt %.

As the rapid development of chemical substances, we look forward to future research findings about 50982-12-2

Reference£º
Patent; JSR Corporation; US2012/282414; (2012); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.50982-12-2,Dichloro(cycloocta-1,5-diene)ruthenium(II),as a common compound, the synthetic route is as follows.

0.25 g of metal sodium was mixed with well dried tetrahydrofuran in a 100 ml flask whose inside had been substituted by nitrogen and cooled to -78 C. A solution of 1.3 g of trimethylsilyl cyclopentadiene dissolved in 30 ml of tetrahydrofuran was added dropwise to the above solution in a stream of nitrogen over 1 hour and heated to room temperature under agitation over 3 hours to obtain a tetrahydrofuran solution of trimethylsilyl cyclopentadienyl sodium. Separately, 18 ml of a tetrahydrofuran solution (2.0 mol/l) of cyclopentadienyl sodium was prepared. Further separately, 5 g of dichloro(1,5-cyclooctadienyl)ruthenium was dissolved in 200 ml of well dried tetrahydrofuran in a 500 ml flask whose inside had been substituted by nitrogen. This solution was cooled to -78 C., and the above tetrahydrofuran solution of trimethylsilyl cyclopentadienyl sodium and the above tetrahydrofuran solution of cyclopentadienyl sodium were added dropwise to the solution at the same time in a stream of nitrogen over 1 hour. The resulting solution was stirred at -78 C. for 3 hours and heated to room temperature under agitation over 12 hours. After the resulting solution was let pass through a neutral alumina column in an argon gas atmosphere to be purified and concentrated, it was separated and purified by a neutral alumina column again to obtain 0.23 g of trimethylsilyl cyclopentadienyl(cyclopentadienyl)ruthenium (yield rate of 4.3%).

The synthetic route of 50982-12-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; JSR Corporation; US2006/240190; (2006); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.50982-12-2,Dichloro(cycloocta-1,5-diene)ruthenium(II),as a common compound, the synthetic route is as follows.

A nitrogen-flushed three-neck flask was charged with 65.36 g of ruthenium trichloride trihydrate, 500 mL of ethanol and 250 mL of 1,5-cyclooctadiene, and the flask contents were refluxed under heating at 85 C. for 5 hours. Following the completion of refluxing, the solution was cooled to room temperature, after which filtration was carried out. The resulting solid was washed with 500 mL of diethyl ether and dried in vacuo, yielding 70.02 g of (eta-1,5-cyclooctadiene)ruthenium(II) dichloride as a brown solid. Next, 2.81 g of this (eta-1,5-cyclooctadiene)ruthenium(II) dichloride, 6.38 g of sodium carbonate, 2.9 mL of methyl 3-oxo-4,4,4-trifluorobutanoate and 10 mL of ethanol were placed in a nitrogen-flushed three-neck flask and refluxed under heating at 85 C. for 2 hours. Following the completion of refluxing, the solution was cooled to room temperature, then alumina column chromatography (developing solvent: acetone) was carried out. The resulting solution was concentrated and dried under reduced pressure, and 3.61 g of bis(methyl-3-oxo-4,4,4-trifluorobutanato)(eta-1,5-cyclooctadiene)ruthenium(II) was obtained as a black reddish-brown liquid. The yield was 66 wt %.

The synthetic route of 50982-12-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; JSR Corporation; US2012/282414; (2012); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.50982-12-2,Dichloro(cycloocta-1,5-diene)ruthenium(II),as a common compound, the synthetic route is as follows.

1,2-closo-C2B10H12 (0.400 g, 2.77 mmol) was dissolved in degassed THF (35 mL). Na metal (0.300 g, 13.04 mmol) and naphthalene (ca. 15 mg) were added and the solution stirred overnight. The resulting dark green solution was transferred via a gas-tight syringe into a second Schlenk tube containing [RuCl2(COD)]x (0.650 g, 2.32 mmol) and a large excess of naphthalene. The resulting brown mixture was heated at reflux for 90 min then allowed to cool to room temperature. The brown mixture was filtered through a short silica column eluting with DCM to afford a brown solution, removal of solvent from which yielded a brown solid. This was further purified by column chromatography (1:2 DCM:40-60 petroleum ether), giving a yellow band, followed by preparative TLC (4:3 DCM:40-60 petroleum ether, Rf 0.55) yielding, as major product C12H20B10Ru requires C 38.59, H 5.40. Found: C 38.01, H 5.67%.

As the paragraph descriping shows that 50982-12-2 is playing an increasingly important role.

Reference£º
Article; Scott, Greig; Ellis, David; Rosair, Georgina M.; Welch, Alan J.; Journal of Organometallic Chemistry; vol. 721-722; (2012); p. 78 – 84;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.50982-12-2,Dichloro(cycloocta-1,5-diene)ruthenium(II),as a common compound, the synthetic route is as follows.

General procedure: The following common procedure was followed for the synthesesof complexes 1-5: A mixture of the ligand (0.36 mmol) and Ru(1,5-cod)Cl2(0.36 mmol) was dissolved in dry ethanol (10 ml) and the resultingmixture was refluxed for 2 h. The reaction volume was concentratedto a third of its original volume and the suspension was keptat 4 C overnight to give brick red solid which was filtered off,washed with cold ethanol and then diethyl ether. The solid wasdissolved in chloroform and excess of n-hexane was added toinduce the precipitation of the brick red solid product.2.3.1. [RuCl2(1,5cod) (L1)] (1)L1 (0.36 mmol, 66 mg) and Ru(1,5-cod)Cl2 (0.36 mmol,100 mg). Yield: 72% (120 mg). Mp. 220.0 C (dec. turns black withoutmelting). 1H NMR (400 MHz, CDCl3, 25 C, ppm) delta = 8.45 (s, 1H,imine CH), 8.25 (d, 1H, JH-H = 5.16 Hz, a proton of Py), 8.01-7.94(m, 2H, Py), 7.58-7.54 (m, 1H, Py), 7.82 (d, 2H, JH-H = 7.56 Hz,Ph), 7.39-7.34 (m, 3H, Ph), 4.75-4.74 (m, 2H, -CH, cod), 4.15-4.11 (m, 2H, -CH, cod), 2.74-2.57 (m, 4H, -CH2, cod), 2.20-2.14(m, 2H, -CH2, cod), 2.06-2.00 (m, 2H, -CH2, cod). 13C NMR(100 MHz, CDCl3, 25C, ppm) delta = 168.04 (imine C-H), 156.70(Py), 150.60 (Py), 149.44 (Py), 138.11 (Py), 135.94 (Py), 129.02(Ph), 128.93 (Ph), 127.88 (Ph), 127.80 (Ph), 120.81 (Ph), 92.25,91.87 (C, -CH, cod), 29.64, 29.22 (C, -CH2, cod). FT-IR (c/cm1):(cod, CC) 3038-2829 (m), (CN) 1594 (s), 1203 (s), 767 (s), 702(s). UV-Vis (dichloromethane, v/v): kmax (nm) = 229, 292, 345,439. HR-Mass (TOF MS ES+) C20H22N2Ru calculated: 393.0810,found: 393.0815. Anal. Calc. for C20H22Cl2N2Ru: C, 51.95; H, 4.80;N, 6.06. Found: C, 51.87; H, 5.10; N, 6.33.

As the paragraph descriping shows that 50982-12-2 is playing an increasingly important role.

Reference£º
Article; Thangavel, Saravanan; Rajamanikandan, Ramar; Friedrich, Holger B.; Ilanchelian, Malaichamy; Omondi, Bernard; Polyhedron; vol. 107; (2016); p. 124 – 135;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

50982-12-2, Dichloro(cycloocta-1,5-diene)ruthenium(II) is a ruthenium-catalysts compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of [RuCl2(COD)]n (309 mg, 1.103 mmol), PCy3 (309 mg, 1.103 mmol) and la (294 mg, 1.103 mmol) was stirred in toluene (10 ml) at 115 C for 48 h in a KONTES pressure tube. After cooling down, the brick colored precipitate was collected on a filter frit, washed with Et20 (3 x 10 ml) and vacuum dried to afford 642 mg of the crude material. To the crude material was added CH2C12 (~ 32 ml) and the obtained mixture was brought to reflux and filtered using a Whatman syringe filter (PTFE membrane, pore size 0.45 muiotaeta). Layering the obtained red-brown solution with Et20 (125 ml) afforded 327 mg (41%) of the product as a pink-brown powder after 5 days. Elem. Anal.: Calcd for C32H55Cl2N2OPRuS (718.81): C, 53.47; H, 7.71; N, 3.90%. Found: C, 53.11; H, 8.00; N, 3.86%. 31P{1H} (162 MHz, CD2C12, r.t.): delta 24.0 (s). 1H NMR (400 MHz, CD2C12, r.t.): delta 0.09 (brs, 1H), 0.92 (brs, 2H), 1.04-1.63 (m, 15H), 1.63-2.05 (m, 9H), 2.10-2.45 (brs, 3H), 2.45-2.70 (brs, 1H), 2.83-3.28 (overlapped, 7H), 3.31-3.56 (overlapped, 6H), 3.56-3.90 (overlapped, 4H), 3.98 (t, J~ 8 Hz, 1H), 5.57 (brs, NH, 1H), 7.31 (t, J~ 7 Hz, 2H), 7.38 (t, J~ 6 Hz, 1H), 8.15 (d, J~ 7 Hz, 2H). 13C{1H} selected for the coordinated NNS ligand (100.5 MHz, CD2C12, r.t.): delta 46.6 (s, 1C), 46.8 (s, 1C), 48.3 (s, 1C), 53.9 (s, 1C, overlapped with CD2C12 peak), 54.8 (s, 1C), 60.0 (s, 1C), 60.7 (s, 1C), 61.7 (s, 1C), 128.1 (s, 2Cmeta, Ph), 129.3 (s, Cpam, Ph), 134.9 (s, 2Cortho, Ph), 138.0 (s, Cipso, Ph).

The synthetic route of 50982-12-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; LOS ALAMOS NATIONAL SECURITY, LLC; DUB, Pavel, A.; GORDON, John, Cameron; WO2015/191505; (2015); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.50982-12-2,Dichloro(cycloocta-1,5-diene)ruthenium(II),as a common compound, the synthetic route is as follows.

General procedure: The following common procedure was followed for the synthesesof complexes 1-5: A mixture of the ligand (0.36 mmol) and Ru(1,5-cod)Cl2(0.36 mmol) was dissolved in dry ethanol (10 ml) and the resultingmixture was refluxed for 2 h. The reaction volume was concentratedto a third of its original volume and the suspension was keptat 4 C overnight to give brick red solid which was filtered off,washed with cold ethanol and then diethyl ether. The solid wasdissolved in chloroform and excess of n-hexane was added toinduce the precipitation of the brick red solid product.

The synthetic route of 50982-12-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Thangavel, Saravanan; Rajamanikandan, Ramar; Friedrich, Holger B.; Ilanchelian, Malaichamy; Omondi, Bernard; Polyhedron; vol. 107; (2016); p. 124 – 135;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

50982-12-2, Dichloro(cycloocta-1,5-diene)ruthenium(II) is a ruthenium-catalysts compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Na2[7,10-nido-C2B10H12] was dissolved in degassed THF (45 mL) giving a purple solution. Excess Na was removed from the reduced carborane solution to give a colourless solution which was then transferred into a Schlenk tube containing [RuCl2(COD)]x (0.780 g, 2.78 mmol) and a large excess of naphthalene. The resulting brown mixture was heated at reflux for 90 min then allowed to cool to room temperature. The brown mixture was filtered through a short silica column eluting with DCM to afford a brown solution, removal of solvent from which yielded a brown solid. This was further purified by column chromatography (1:2 DCM:40-60 petroleum ether), giving a yellow band, followed by preparative TLC (2:1 DCM:40-60 petroleum ether, Rf 0.38) yielding solid. C12H20B10Ru requires C 38.59, H 5.40. Found: C 39.48, H 4.87%.

The synthetic route of 50982-12-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Scott, Greig; Ellis, David; Rosair, Georgina M.; Welch, Alan J.; Journal of Organometallic Chemistry; vol. 721-722; (2012); p. 78 – 84;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

50982-12-2, Dichloro(cycloocta-1,5-diene)ruthenium(II) is a ruthenium-catalysts compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Next, 31.56 g of this (eta-1,5-cyclooctadiene)ruthenium(II) dichloride, 34.97 g of sodium carbonate, 28 mL of 2,4-pentanedione and 100 mL of N,N-dimethylformamide were placed in a nitrogen-flushed three-neck flask and stirred at 140 C. for 1 hour. Following reaction completion, the solution was cooled to room temperature, then alumina column chromatography (developing solvent: diethyl ether) was carried out. The resulting solution was concentrated, after which 120 mL of water was added and the solution was left at rest for 3 hours. The crystals that precipitated out were collected by filtration, and after being washed with water, were dried in vacuo. 46.53 g of bis(2,4-pentanedionato)(eta-1,5-cyclooctadiene)ruthenium(II) was obtained as an orangey-yellow solid. The yield was 94 wt %.

50982-12-2 Dichloro(cycloocta-1,5-diene)ruthenium(II) 11000435, aruthenium-catalysts compound, is more and more widely used in various.

Reference£º
Patent; JSR Corporation; US2012/282414; (2012); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI