Day: August 20, 2020

301224-40-8, (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride is a ruthenium-catalysts compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

cis-RuC12(slMes)( CHC6H4O1-Pr)(PhP(OMe)2), cis-C797: To a round-bottomed flask was charged C627 (15.0 g), degassed CH2C12 (1000 mL) and a magnetic stir bar under nitrogen, followed the addition of phosphonite PhP(OMe)2 (4.1 g). The solution was stirred for 3.7 h and second portion of phosphonite PhP(OMe)2 (2.05 g) was added. The solution was continued to stir for 2 more hours and the solution was concentrated by a rotary evaporator. A silica gel plug column (4 x 2.5 in, D x H) was pre-wetted with CH2C12. Low vacuum suction was used to assist elution. The crude was loaded on the top of the column. The first eluent was CH2C12 and a green fraction was collected, that was C627 as verified by NIVIR. The green fraction was followed by a yellow fraction that appeared to be an oxidation derivative of the phosphonite. The eluent was then switched to gradient mixture of CH2C12 /EtOAc. A brown band containing the product was collected. The solvent was removed by a rotary evaporator and the residue was recrystallized from CH2C12 /heptanes. black crystalline solid was obtained (3.1 g). ?H NMR (400 IVIHz, CD2C12, ppm): oe 15.83 (d, J = 24 Hz, 1H, Ru=CI]), 9.16 (dd, J = 8 Hz, J = 2 Hz, 1H), 7.51 (m, 1H), 7.25 (m, 1H), 7.15 (m, 2H), 7.02 – 6.88 (m, 5H), 6.66 (s, 1H), 6.61 (d, J = 8 Hz, 1H), 6.14 (s, 1H), 4.49 (septet, J = 6Hz, 1H, CIJMe2), 4.02-3.62 (m, 4H, CH2CH2), 3.33 (d, J = 11 Hz, 3H, OCH3), 3.05 (d, J = 12 Hz, OCH3), 2.67 (s, 3H, mestyl methyl), 2.62 (s, 3H, mestyl methyl), 2.46 (s, 3H, mestyl methyl), 2.33 (s, 3H, mestyl methyl), 2.22 (s, 3H, mestyl methyl), 1.95 (s, 3H, mestyl methyl), 1.46 (d, J = 6Hz, 3H, CH(CH3)2), 1.19 (d, J = 6Hz, 3H, CH(CH3)2).3?P NIVIR (161.8 IVIFIz, CD2C12, ppm): oe 163.84 (b).

As the paragraph descriping shows that 301224-40-8 is playing an increasingly important role.

Reference£º
Patent; MATERIA, INC.; GIARDELLO, Michael, A.; TRIMMER, Mark, S.; WANG, Li-Sheng; DUFFY, Noah, H.; JOHNS, Adam, M.; RODAK, Nicholas, J.; FIAMENGO, Bryan, A.; PHILLIPS, John, H.; (127 pag.)WO2017/53690; (2017); A1;,
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

(PPh3)3RuCI2 (1 eq., 0.575 g, 0.6 mmol) and 1-naphtyl-1-phenyl-prop-2-yn-1-ol (compound B, 1.5 eq., 0.23 g, 0.9 mmol) were added in 4 ml HCI/dioxane solution (0.15 mol/l). The solution was heated to 90C for 3 hour, after which the solvent was removed under vacuum. Hexane (20 ml) was added to the flask and the solid was ultrasonically removed from the wall. The resulting suspension was filtered and washed two times using hexane (5 ml). The remaining solvent was evaporated affording a red-brown powder; 0.51 g (Yield: 90 %). The product was characterized by NMR spectra 31P.31P NMR (121.49 MHz, CDCI3): 628.75.

As the paragraph descriping shows that 15529-49-4 is playing an increasingly important role.

Reference£º
Patent; GUANG MING INNOVATION COMPANY (WUHAN); W.C. VERPOORT, Francis; YU, Baoyi; WO2014/108071; (2014); A1;,
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

General procedure: Synthesis of the ruthenium(II) Schiff base complexes (2a-d) was accomplished according to the following procedure: To a solution of Schiff base 1a-d in methanol was added dropwise a solution of NaOH in methanol and the reaction mixture was stirred for 2hat room temperature. The deprotonated ligand mixture was transferred by cannula to a 50-mL three-necked flask fitted with a reflux condenser containing the [RuCl2(PPh3)3] precursor, stirred mixture was refluxed for 4h. A yellow precipitate was then filtered and washed with methanol and ethyl ether and then dried in a vacuum. Complex 2a: [RuCl2(PPh3)3] complex (0.30g, 0.31mmol), Schiff base 1a (0.070g, 0.37mmol), NaOH (0.18g, 0.45mmol), and methanol (20mL) afforded 0.25g (80%) of the title complex as a yellow solid: anal. calculated for C49H48ClNOP2Ru was 68.01C, 5.59H and 1.62% N; found: 68.34C, 5.55H and 1.60% N. UV-Vis: lambdamax(n) (nm), epsilonmax(n) [M-1cm-1]: lambdamax(1) (252), epsilonmax(1) [10020], lambdamax(2) (370), epsilonmax(2) [625], lambdamax(3) (422), epsilonmax(3) [240]; IR (KBr): nux (cm-1): nuC=N (1618), nuC-O (1355); 1H NMR: (CDCl3, 400MHz): 7.30-7.70 (m, 12H: metha-PPh3 and 1H: CH=N), 7.30-7.70 (m, 6H, para-PPh3), 7.21-7.30 (m, 12H, ortho-PPh3), 6.63-6.68 (m, 1H, salicyl-ring), 6.4-6.5 (dd, 3JH,H=1.6Hz, dd, 3JH,H=1.2Hz, 1H, salicyl-ring), 6.04-6.10 (m, 1H, salicyl-ring), 5.85-5.80 (m, 1H, salicyl-ring), 3.85-3.92 (m, 1H, CHPentyl), 1.60-1.80 (m, 3H, CH2Pentyl), 1.29-1.38 (m, 4H, CH2Pentyl), 1.07-1.15 (m, 1H, CH2Pentyl),13C NMR (CDCl3) delta 166.12, 160.83, 135.16, 135, 134.84, 134.26, 134.21, 134.16, 132.12, 132.04, 131.93, 131.91, 129, 128.53, 128.44, 127.62, 127.59, 127.55, 123.36, 121.99, 111.80, 75.92, 32.39, 23.43; 31P{1H} NMR (CDCl3: delta, ppm): 43.15 (s). EPR: no signal was observed.

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

Reference£º
Article; Afonso, Maria Beatriz A.; Cruz, Thais R.; Silva, Yan F.; Pereira, Joao Clecio A.; Machado, Antonio E.H.; Goi, Beatriz E.; Lima-Neto, Benedito S.; Carvalho-Jr, Valdemiro P.; Journal of Organometallic Chemistry; vol. 851; (2017); p. 225 – 234;,
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.

The catalyst precursor, preferably [RuCI2(COD)]m (1 eq.), 1 ,4-bis(diphenylphosphino)butane (1 .0-1 .2 eq., preferably 1 .0 eq.) and 2- quinolinylmethylamine (1.0-1 .4 eq., preferably 1.225 eq.) were dissolved in one of the above mentioned solvents, preferably cyclohexanone (10- 20 ml/g Ru-precursor, preferably 20 ml/g). The mixture was heated at 130 C for 1 hour and then cooled to ambient temperature. The solid precipitate was filtered off and washed with the same solvent that was used for the reaction. A person skilled in the art can determine the cis-/trans- isomeric ratio by NMR. The diastereomeric ratios generated by this method are usually in the range of d.r. (diastereomeric ratio) >98% towards the cis isomer. The same results can be achieved starting with [RuCI2(dmso-KS)3(dmso-KO)], [RuCI2(dmso-KS)4]or [RuCI2(bicyclo[2.2.1]hepta-2,5-diene)]m as precursor

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

Reference£º
Patent; SYNGENTA PARTICIPATIONS AG; LOTHSCHUETZ, Christian; SAINT-DIZIER, Alexandre Christian; WO2014/166777; (2014); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

246047-72-3, (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium is a ruthenium-catalysts compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

After a 50 mL two-necked flask was replaced by argon, the ligand 3cr (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 an 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 produce sand after filtration. The crude product was obtained by silica gel column chromatography and was then washed with methanol or pentane-DCM to obtain 4cr as a green solid product in a yield of 59%.

As the paragraph descriping shows that 246047-72-3 is playing an increasingly important role.

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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.246047-72-3,(1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium,as a common compound, the synthetic route is as follows.

After a 50 mL two-necked flask was purged with argon, the ligand 3be (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 produce sand after filtration. The crude product was obtained by silica gel column chromatography and then washed with methanol or pentane-DCM to obtain 4be green solid product in a yield of 48%.

The synthetic route of 246047-72-3 has been constantly updated, and we look forward to future research findings.

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

Under argon dichlorotris(triphenylphosphine)ruthenium(II) (1.52 g, 1.58 mmol) is added to a solution of N-(2-(diphenylphosphino)benzylidene)-2-(ethylthio)ethanamine (0.60 g, 1.58 mmol) in toluene (13 ml). After stirring for 19 h at 110 C. the reaction mixture is cooled to room temperature and evaporated under vacuo to a volume of 5 ml. To this red suspension DCM (20 ml) is added. After stirring for 15 min the suspension is filtered and dried under vacuo. Complex 6 is obtained as a red solid (0.88 g, 69%). Analytical data: 1H-NMR (400 MHz, CDCl3): 8.80 (d, J=8.84, 1H), 7.56-6.81 (m, 29H), 6.35 (m, 2H), 4.60 (m, 1H), 4.20 (m, 1H), 3.03 (m, 2H), 2.29 (m, 1H), 0.92 (t, J=7.33, 3H). 31P-NMR (500 MHz, CDCl3): 45.68 (d, J=30.23, 1P), 29.60 (d, J=30.23, 1P). MS (ESI): 811.10 (40%, M+), 776.12 (100%, [M-Cl]+). Anal. calcd. for C41H39Cl2NP2RuS: C, 60.66%; H, 4.84%; N, 1.73%. Found: C, 60.85%; H, 4.90%; N, 1.64%

The synthetic route of 15529-49-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; GIVAUDAN SA; GEISSER, Roger Wilhelm; OETIKER, Juerg Daniel; SCHROeDER, Fridtjof; (17 pag.)US2016/326199; (2016); 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.

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

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.246047-72-3,(1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium,as a common compound, the synthetic route is as follows.

To a solution of 1-isopropoxy-4-(perfluorodecyl)-2-vinylbenzene (35.5mg, 0.052mmol) in dry CH2Cl2 (4 mL) was added Grubbs 2nd generation (48.75 mg, 0.057 mmol) and CuCl (I) (8.2 mg, 0.083 mmol) under N2 at 35C and stirred for 3 h. The reaction mixture was concentrated in vacuo, and the residue was purified by column chromatography on silica gel (hexane / CH2Cl2 = 1 / 1) to give 1a (39.5mg, 65%).

As the paragraph descriping shows that 246047-72-3 is playing an increasingly important role.

Reference£º
Article; Kobayashi, Yuki; Inukai, Sae; Kondo, Natsuki; Watanabe, Tomoko; Sugiyama, Yuya; Hamamoto, Hiromi; Shioiri, Takayuki; Matsugi, Masato; Tetrahedron Letters; vol. 56; 11; (2015); p. 1363 – 1366;,
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

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