Day: August 17, 2020

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

The catalyst precursor, preferably [RuCI2(COD)]m (1 eq.) (COD = cis,cis-cycloocta-1 ,5 diene), 1 ,4-bis(diphenylphosphino)butane (1.0-1 .2 eq., preferably 1.0 eq.) and 2-picolylamine (1 .0-1.4 eq., preferably 1.225 eq.) were dissolved in one of the above mentioned solvents, preferably methyl isobutylketone (10-20 ml/g Ru-precursor, preferably 20 ml/g). The mixture was heated to reflux for 3 – 5 hours 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

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

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

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

Example 2; Synthesis of the Alkylidene Complex (2): Ru(cod)Cl2 (660 mg, 2.35 mmol) was suspended in iPrOH (20 ml) under an Ar atmosphere. DBU (0.75 ml) and PCy3 solution (c=20%, 0.77 M in toluene, 7.7 ml) was added. The brown suspension obtained was stirred at 80 C. for 1 hour and toluene (25 ml) was then added. The mixture was stirred at 80 C. for a further 30 minutes. The reaction mixture was then cooled to 0 C. and 1-trimethylsilyl-1-hexyne (2.1 g) was added. After stirring for 10 minutes, HCl solution (c=2 M in Et2O, 2.4 ml) was added to the reaction mixture at 0 C. After stirring for 1 hour, the reaction mixture was evaporated. MeOH (about 30 ml) was added to the residue. Filtration gave the complex 2. The NMR also shows by-products.NMR in CDCl3 delta 31P 35.81 ppm. 1H delta 20.01 ppm.

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

Reference£º
Patent; Evonik Degussa GmbH; US2011/40099; (2011); 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

2-Methyl-acrylic acid 3-trimethoxysilane propyl ester (87 mg, 0.35 mmol) in dry THF was treated with triethylamine (0.20 mL) and the mixture was stirred for 30 min at ambient temperature under air. [RuCl2(PPh3)3] (335 mg, 0.35 mmol) was added and the reaction mixture was stirred at reflux for 2 h, during which there was a color residue was washed with diethyl ether and hexane. Recrystallization from CH2Cl2/hexane afforded dark green crystals of 1 in a week. Yield: 128 mg, 47% (based on Ru). IR (KBr disc, cm-1): nu(C=C) 1623 (s), nu(OCO) 1504 (s) and 1472 (s). MS (FAB): m/z = 781 [M]+, 746 [M-Cl]+, 711 [M-2Cl]+. mueff = 1.93 muB. Anal. for C40H35O2Cl2P2Ru: calcd. C 61.46, H 4.51%; found C 61.41, H 4.48%.

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

Reference£º
Article; Gu, Jiling; Shi, Li-Miao; Ma, Xiu-Fang; Jia, Ai-Quan; Zhang, Qian-Feng; Inorganica Chimica Acta; vol. 466; (2017); p. 382 – 388;,
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

Grubbs second generation catalyst (100 mg, 0.117 mmol), 2-[(2,6-dimethylphenylimino)methyl]phenol (pKa: 8.85+/-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 a chromatography column to give an orange-brown complex. Yield 22%.

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

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

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

N1-(2-aminoethyl)-1,2-ethanediamine (0.057 ml, 0.58 mmol) ligand was dissolved in 10 mL of dichloromethane and the solution was added dropwise to a stirred solution of [RuCl2(PPh3)3] (1) (0.500 g, 0.522 mmol) in 10 mL of dichloromethane. The reaction mixture was stirred approximately for 50 min at room temperature. The brown solution was filtered to remove the insoluble impurities. The solvent was reduced by a vacuum and the product was then precipitated by adding n-hexane. The yellow solid was filtered and washed three times with 20 mL of diethyl ether. Crystals suitable for X-ray structural analysis have been obtained by layer-diffusion of diethylether into dichloromethane solutions of the complex. Yield (0.342g, 82%). M.p is 239-241C. IR (KBr, nucm-1): 3330 (nuFree NH2), 3276 (nuNH2), 3227 (nuNH). 1H NMR (CD2Cl2, delta ppm): 2.48-4.21 (br, m, 13H, (H2NCH2CH2)2NH), 7.24-7.78 (m, 30H, C6H5). 31P{1H} NMR (CD2Cl2): delta (ppm) 44.00 and 43.94 (dd). FAB-MS: 799.2. Anal. Found: C, 60.22; H, 5.28; N, 5.14%. Calc. for C40H43Cl2N3P2Ru: C, 60.08; H, 5.42; N, 5.25.

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

Reference£º
Article; Al-Noaimi, Mousa; Nafady, Ayman; Warad, Ismail; Alshwafy, Rwaida; Husein, Ahmad; Talib, Wamidh H.; Hadda, Taibi Ben; Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy; vol. 122; (2014); p. 273 – 282;,
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

Synthesis and characterization of [(IMesH2)(PCy3)(Cl)2Ru?CF2]: A solution of 0.32 g (0.37 mmol) [(IMesH2)(PCy3)(Cl)2Ru?CHPh] (5) in dry, degassed benzene (15 mL) in a thick-walled glass ampule was put under 1.5 atm of 1,1-difluoroethylene. The reaction was heated at 60 C. for 12 hrs, during which time it changed from reddish to brown in color. The solution was then concentrated to 5 mL and purified by column chromatography in air (silica gel, 5:1 pentane/THF). The orange fraction was stripped of solvent and dried under vacuum: yield 0.26 g (86%). 1H NMR (499.852 MHz, 25 C., CD2Cl2): delta 1.118 [br, 15H, PCy3], 1.626 [br, 15H, PCy3], 2.248 [s, 3H, p-CH3 of Mes], 2.285 [s, 3H, p-CH3 of Mes], 2.385 [m, 3H, PCy3], 2.480 [s, 6H, o-CH3 of Mes], 2.551 [s, 6H, o-CH3 of Mes], 4.003 [s, 4H, NCH2CH2N], 6.921 [s, 4H, m-H of Mes]. 13C {1H} NMR (125.705 MHz, 30 C., C6D6): delta 19.44 [s, CH3 of Mes], 20.65 [s, CH3 of Mes], 21.49 [s, CH3 of Mes], 21.50 [s, CH3 of Mes], 26.92 [d, J=1.3 Hz, PCy3], 28.50 [d, J=10 Hz, PCy3], 30.14 [s, PCy3], 33.34 [d, J=18 Hz, PCy3], 51.86 [d, 4 JPC=2.6 Hz, NCH2CH2N], 52.61 [d, 4JPC=3.5 Hz, NCH2CH2N], 127.30 [s, Mes], 128.17 [s, Mes], 129.26 [s, Mes], 129.51 [s, Mes], 130.11 [s, Mes], 130.52 [s, Mes], 134.68 [d, 4 JPC=0.7 Hz, ipso-C of Mes], 136.85 [s, ipso-C of Mes], 138.91 [s, Mes], 138.93 [s, Mes], 139.03 [s, Mes], 139.67 [s, Mes], 217.23 [d, 2JCP=87 Hz, NCN], 218.09 [td, 2JCP=12 Hz, 1 JCF=430 Hz, Ru?CF2]. 19F NMR (282.192 MHz, 25 C., CD2Cl2): delta 133.74 [d, 3JFP=4.5 Hz]. 31P {1H} NMR (121.392 MHz, 25 C., CD2Cl2): delta 32.15 (t, 3 JPF=4.4 Hz]. IR (KBr pellet): 1167 and 1172 (nuC-F).

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

Reference£º
Patent; CALIFORNIA INSTITUTE OF TECHNOLOGY; Grubbs, Robert H.; Chatterjee, Arnab K.; Choi, Tae-Lim; Goldberg, Steven D.; Love, Jennifer A.; Morgan, John P.; Sanders, Daniel P.; Scholl, Matthias; Toste, F. Dean; Trnka, Tina M.; (27 pag.)US9403854; (2016); B2;,
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.15529-49-4,Dichlorotris(triphenylphosphino)ruthenium (II),as a common compound, the synthetic route is as follows.

General procedure: Diphosphine ligand (2.0 mmol) was dissolved in 10 mL of dichloromethane and the solution was added dropwise to a stirred solution of RuCl2(PPh3)3 (1.0 mmol) in 10 mL of dichloromethane. The reaction mixture was stirred approximately for 50 min at room temperature. The brown solution was filtered to remove the insoluble impurities. The solvent was reduced by a vacuum and the product was then precipitated by adding n-hexane. The yellow solid was filtered and washed three times with 20 mL of diethyl ether.

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

Reference£º
Article; Al-Noaimi, Mousa; Warad, Ismail; Abdel-Rahman, Obadah S.; Awwadi, Firas F.; Haddad, Salim F.; Hadda, Taibi B.; Polyhedron; vol. 62; (2013); p. 110 – 119;,
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.15529-49-4,Dichlorotris(triphenylphosphino)ruthenium (II),as a common compound, the synthetic route is as follows.

A mixture of HL1 (80mg, 0.20mmol), triethylamine (20mg, 0.20mmol) and 1[Ru(PPh3)3Cl2] (192mg, 0.20mmol) were stirred in tetrahydrofuran (20mL) for 6h at room temperature, during which the color of solution changed from brown to dark red. After removal of solvents in vacuo, dichloromethane (20mL) was added and the solution was filtered. The filtrate was concentrated and the residue was washed with diethyl ether (5mL¡Á2) and hexane (5mL¡Á2) to give the desired product. Recrystallization from dichloromethane/hexane (1:3) afforded dark red block crystals of [Ru(L1)(PPh3)2Cl] (1) suitable for X-ray diffraction in three days. Yield: 140mg, 66% (based on ruthenium). IR (KBr disc, cm-1): nuC=N 1568 (m), nuC-O 1304 (s), nuC-S 744 (w), nuPPh3 1433(m), 1091(s) and 694 (w), nuC-Br 564 and 529 (s); 31P NMR (CDCl3, 162MHz): delta 17.0 (s, PPh3) ppm. 1H NMR (CDCl3, 400MHz): delta 9.82 (s, 1H, CH=N), 7.91-7.52 (m, 30H, PPh3), 7.21-7.10 (m, 2H, Ar-H), 6.35-6.20 (m, 4H, Ar-H), 2.17 (s, 3H, SCH3) ppm. MS (FAB): m/z 1061 [M+], 1026 [M+-Cl], 799 [M+-PPh3], 537 [M+-2PPh3], 513 [Ru(L1)]+. Anal. Calc. for C50H40NOP2ClBr2SRu: C, 56.59; H, 3.80; N, 1.32%. Found: C, 56.54; H, 3.83; N, 1.36%.

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

Reference£º
Article; Ji, Jiao; Chen, Xin; Lin, Hui; Jia, Ai-Quan; Zhang, Qian-Feng; Inorganica Chimica Acta; vol. 494; (2019); p. 105 – 111;,
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

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%.

246047-72-3 (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium 11147261, aruthenium-catalysts compound, is more and more widely used in various.

Reference£º
Patent; Telene SAS; EP2151445; (2010); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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

General procedure: In a glove box, a flask was charged with Ru complex 4 or 5 and Ag salt 3. Anhydrous degassed CH2Cl2 was then added and the resulting mixture was stirred at room temperature for 3h in the dark. The solids were filtered off through a Celite layer and washed with anhydrous (2mL). The solution was diluted with anhydrous hexane (10mL) and remaining precipitated Ag salt was again filtered off. Evaporation of the solvents on a rotary vacuum evaporator (40C, 1h, 25kPa) and finally at oil pump vacuum (25C, 1h, 1kPa) gave the products 1 or 2. 4.8 [1,3-Bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene](2-isopropoxybenzylidene)-bis[perfluoro(2-methyl-3-oxahexanoyl)oxy]ruthenium(IV)(1a) (0038) According to the general procedure, silver salt 3a (20mg, 0.047mmol) and complex 4 (HG2, 11.6mg, 0.019mmol) gave the target complex 1a (22mg, 98%, deep violet crystals). 1H NMR (399,94MHz, CD2Cl2): delta 0.95+0.97+0.97 (3¡Ád, 3JH-H=5.9Hz, 6H, OCH(CH3)2), 2.06 (m, 6H, Ar’CH3-p), 2.43 (m, 12H, Ar’CH3-o), 4.09+4.11+4.12 (3¡Ás, 4H, CH2), 4.46 (m, 1H, OCH(CH3)2), 6.63 (m, 1H, ArH), 6.96 (m, 1H, ArH), 7.11 (dd, 3JH-H=7.6Hz, 4JH-H=1.5Hz, 1H, ArH), 7.19 (m, 4H, Ar’H), 7.37 (m, 1H, ArH), 17.58+17.63+17.68 (3¡Ábs, 1H, Ru=CH)ppm. 19F NMR (376.29MHz, CD2Cl2): delta -80.7+(-81.2) (2¡Ádm, 2JF-F=150Hz, 1F, CFFCF2CF3), -81.2+(-81.3)+(-81.6)+(-81.8) (4¡Ám, 4JF-F=13Hz, 3F, CF3CF), -81.5+(-81.7)+(-81.7) (4¡Át, 4JF-F=10Hz, 3F, CF3CF2), -83.5+(-83.6)+(84.4)+(-84.6) (4¡Ádm, 2JF-F=150Hz, 1F, CFFCF2CF3), -128.4+(-128.9) (2¡Ám, 1F, CF3CF), -129.9+(-130.2)+(-130.3) (3¡Ám, 2F, CF3CF2) ppm, 13C NMR (100.58MHz, CD2Cl2): delta 17.0 (m, 4C, Ar’CH3-o), 18.3 (m, 2C, Ar’CH3-p), 19.8+19.9+20.8 (3¡Ás, 2C, OCH(CH3)2), 50.1 (s, 2C, CH2N), 75.0+75.1+75.2 (3¡Ás, 1C, OCH(CH3)2), 106-120 (m, 22C, CF3, CF2, CF), 110.8+111.1+111.3 (3¡Ás, 1C, CArHCArOiPr), 122.2+122.3+122.3 (3¡Ás, 1C, CArH), 123.7+123.8+123.9 (3¡Ás, 1C, CArH), 129.5 (m, 4C, CArH), 130.1+130.2+130.3 (3¡Ás, 1C, CArH), 136.5+137.2+137.4 (3¡Ám, 2C, CAr’CH3), 139.0+140.2+140.7 (3¡Ám, 4C, o-CAr’CH3), 142.6+142.8+143.0 (3¡Ás, 1C, CArCH=Ru), 153.5 (s, 1C, CAr-OiPr), 159.2+159.4+162.8 (3¡Ád, 2JC-F=25Hz, 1C, COO), 209.1+209.3+209.6 (3¡Ás, 1C, NCN), 319.4 (m, CH=Ru)ppm. MS (ESI+) m/z (%): 929.2 [M+Na]+ (100), 731.2 (59), 441.3 (88). HRMS (ESI+): [M+Na]+ calcd. for C39H44F8N2NaO7Ru 929.1956, found 929.1965.

301224-40-8 (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride 11763533, aruthenium-catalysts compound, is more and more widely used in various.

Reference£º
Article; Lipovska, Pavlina; Rathouska, Lucie; ?im?nek, Ond?ej; Ho?ek, Jan; Kola?ikova, Viola; Ryba?kova, Marketa; Cva?ka, Josef; Svoboda, Martin; Kvi?ala, Jaroslav; Journal of Fluorine Chemistry; vol. 191; (2016); p. 14 – 22;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI