Day: September 4, 2020

Name is (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride, as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 301224-40-8, its synthesis route is as follows.,301224-40-8

General procedure: A mixture of fluorinated acid silver salt 6 (2.2eq.) and dichlororuthenium(IV) complex 5 (1.0eq.) was first dried under vacuum (13Pa) at room temperature for 1h. Dry dichloromethane (5mL) was added and the resulting mixture was stirred at room temperature for 3h in the dark. The solids were filtered off and washed with dry dichloromethane (2mL). Evaporation of the solvent afforded the product 7-9.

With the complex challenges of chemical substances, we look forward to future research findings about (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride

Reference£º
Article; Babun?k, Mario; ?im?nek, Ond?ej; Ho?ek, Jan; Ryba?kova, Marketa; Cva?ka, Josef; B?ezinova, Anna; Kvi?ala, Jaroslav; Journal of Fluorine Chemistry; vol. 161; (2014); p. 66 – 75;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Benzylidenebis(tricyclohexylphosphine)dichlororuthenium, as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 172222-30-9, its synthesis route is as follows.,172222-30-9

In a dry box, a Teflon-sealed n.m.r. tube was charged with (2S)-methyl 2-N-acetylaminopenta-2,4-dienoate 57 (10.8 mg, 63.9 mumol), Grubbs’ catalyst (50.7 mg, 61.6 mumol) and degassed deuterated DCM (CD2Cl2, 0.8 mL) at room temperature. The n.m.r. tube was shaken gently and reaction progress was monitored by 1H and 31P n.m.r. spectroscopy. Compounds were identified by the following diagnostic resonances: 1H n.m.r. (300 MHz, CD2Cl2): After 15 min: Grubbs’ catalyst: delta 8.61 (d, J=7.6 Hz, 2H, ortho-Arom CH), 20.05 (s, 1H, [Ru]CHPh); Ruthenium-dienamide complex 73: delta 7.96 (d, J=11.0 Hz, 1H, [Ru]CHCH), 20.11 (d, J=11.0 Hz, 1H, [Ru]CH); Ruthenium-dienamide chelate 74 (trace): delta 15.20 (d, J=4.2 Hz, 1H, [Ru]CH); Ratio of ruthenium complexes [Ru]CHPh: 73: 74=1.0:1.0:<0.1. After 60 min: Grubbs' catalyst: delta 8.45 (d, J=7.6 Hz, 2H, ortho-Arom CH), 20.04 (s, 1H, [Ru]CHPh); Ruthenium-dienamide complex 73: delta 7.96 (d, J=11.0 Hz, 1H, [Ru]CH=CH), 20.10 (d, J=11.0 Hz, 1H, [Ru]CH); Ruthenium-dienamide chelate 74: delta 6.73 (d, J=3.0 Hz, 1H, [Ru]CHCH), 15.19 (d, J=4.2 Hz, 1H, [Ru]CH); Ratio of ruthenium complexes [Ru]CHPh: 73: 74=3:1:1. After 120 min (no change after 18 h): Ruthenium-dienamide chelate 74: delta 6.71 (d, J=3.0 Hz, 1H, [Ru]CHCH), 15.19 (d, J=4.0 Hz, 1H, [Ru]CH). 31P n.m.r. (300 MHz, CDCl3): delta Ruthenium-dienamide chelate 74: 35.0; Grubbs' catalyst: 37.0; Ruthenium-dienamide complex 73: 38.8; Tricyclohexylphosphine oxide: 46.5. With the complex challenges of chemical substances, we look forward to future research findings about Benzylidenebis(tricyclohexylphosphine)dichlororuthenium Reference£º
Patent; Robinson, Andrea; Elaridi, Jomana; US2007/197429; (2007); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Dichloro(cycloocta-1,5-diene)ruthenium(II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 50982-12-2, its synthesis route is as follows.,50982-12-2

Dichloro(1,5-cyclooctadiene)ruthenium (4.0 g, 0.014 moles), tricyclohexylphosphine (8.4 g, 0.030 moles), degassed triethylamine (2 mL), and degassed sec-butanol (60 mL) were combined in a pressure bottle under argon. The pressure bottle was purged with hydrogen gas, pressurized to 60 psi, and the mixture heated to 80 C. for 18 hours (the bottle was repressurized as needed to maintain 60 psi hydrogen). The reaction mixture was then allowed to cool down and the hydrogen gas was vented off. Degassed methanol (60 mL) was added to the orange slurry and the filtrate decanted off via stick filtration under argon to leave an orange solid in the bottle, which was washed with degassed methanol (60 mL). Degassed toluene (60 mL) was added to the orange solid and the orange slurry cooled to 0 C. Degassed 3-chloro-3-methyl-1-butyne (1.7 mL, 0.015 moles) was added dropwise via syringe at 0 C. The orange slurry progressively turned to a maroon slurry, while gas bubbled away. The mixture was stirred at room temperature for 2 hours after addition was complete. Ligand precursor [ 2] (18 g, 0.102 moles) was then charged and the mixture was heated to 80 C. and sparged with argon for 3 days (degassed toluene was added as needed). The brown slurry was allowed to cool to room temperature and a mixture of 30 mL methanol and 10 mL of concentrated hydrochloric acid was added in air with mixing. After stirring for 15 minutes at room temperature, the two phases were allowed to separate and the methanol phase was decanted off. Trituration with methanol (2¡Á50 mL) gave a solid, which was collected on a frit and washed with more methanol (2¡Á20 mL). The brown solid was then washed with hexanes (2¡Á20 mL) and dried to give [ 8] (5.1 g, 0.085 moles) in 61% yield.

With the complex challenges of chemical substances, we look forward to future research findings about Dichloro(cycloocta-1,5-diene)ruthenium(II)

Reference£º
Patent; MATERIA, INC.; Pederson, Richard L.; Woertink, Jason K.; Haar, Christopher M.; Gindelberger, David E.; Schrodi, Yann; (13 pag.)US9504997; (2016); B2;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Dichloro(2-isopropoxyphenylmethylene)(tricyclohexylphosphine)ruthenium (II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 203714-71-0, its synthesis route is as follows.,203714-71-0

PIB-supported Grubbs-Hoveyda 2nd generation catalyst (molecule 8): A mixture of 1.14 g (0.48 mmol) of 1,3-bis(2,6-dimethyl-4-(polyisobutyl)phenyl)-4,5-dihydro-imidazolium tetrafluoroborate, 0.15 g (0.75 mmol) of KHMDS, 0.05 g (0.5 mmol) of CuCl and 0.36 g (0.57 mmol) of 1st generation Hoveyda-Grubbs catalyst was prepared was dissolved in 5 mL of toluene. The solution was heated to 100 C. for 3 hours. Solvent was removed under reduced pressure and purified by column chromatography (dichloromethane) resulting in a dark green viscous residue. The yield was 60% (0.75 g). 1H-NMR (500 MHz, CDCl3), delta: 0.8-1.6 (m, 280H), 1.87 (s, 2H), 2.41 (b, 6H), 2.62 (b, 6H) 4.15 (s, 4H), 4.90 (m, 1H) 6.8 (m, 2H), 6.98 (m, 1H), 7.22 (b, 4H), 7.47 (m, 1H), and 16.67 (s, 1H). 13C NMR (125 MHz, CDCl3), delta: 21.62, multiple peaks between 30-40 and 58-60, 113.10, 122.42, 123.09, 126.53, 127.01, 129.69, 137.30, 139.21, 145.41, 145.44, 152.16, 152.43, 152.45, 211.19, and 297.23 (m).

With the complex challenges of chemical substances, we look forward to future research findings about Dichloro(2-isopropoxyphenylmethylene)(tricyclohexylphosphine)ruthenium (II)

Reference£º
Patent; Bergbreiter, David E.; Bazzi, Hassan S.; Hongfa, Chayanant; US2009/203860; (2009); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride, as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 301224-40-8, its synthesis route is as follows.,301224-40-8

General procedure: A mixture of fluorinated acid silver salt 6 (2.2eq.) and dichlororuthenium(IV) complex 5 (1.0eq.) was first dried under vacuum (13Pa) at room temperature for 1h. Dry dichloromethane (5mL) was added and the resulting mixture was stirred at room temperature for 3h in the dark. The solids were filtered off and washed with dry dichloromethane (2mL). Evaporation of the solvent afforded the product 7-9.

With the complex challenges of chemical substances, we look forward to future research findings about (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride

Reference£º
Article; Babun?k, Mario; ?im?nek, Ond?ej; Ho?ek, Jan; Ryba?kova, Marketa; Cva?ka, Josef; B?ezinova, Anna; Kvi?ala, Jaroslav; Journal of Fluorine Chemistry; vol. 161; (2014); p. 66 – 75;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Dichloro(cycloocta-1,5-diene)ruthenium(II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 50982-12-2, its synthesis route is as follows.,50982-12-2

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.

With the complex challenges of chemical substances, we look forward to future research findings about Dichloro(cycloocta-1,5-diene)ruthenium(II)

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

Name is Dichloro(cycloocta-1,5-diene)ruthenium(II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 50982-12-2, its synthesis route is as follows.,50982-12-2

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.

With the complex challenges of chemical substances, we look forward to future research findings about Dichloro(cycloocta-1,5-diene)ruthenium(II)

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

Name is Ruthenium(III) chloride, as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 10049-08-8, its synthesis route is as follows.,10049-08-8

Example 13 Synthesis of (3S)-3-(1,3-benzodioxol-5-yl)-3-[({1-[2-oxo-3-(phenylmethyl)-1(2H)-pyridinyl]cyclohexyl}carbonyl)amino]propanoic Acid Step One: To a solution of 3-benzylpyridine (1.65 g, 9.77 mmol) in acetone (3.5 mL), 1-chloro-2,4-dinitrobenzene (2.00 g, 9.56 mmol) was added and the mixture was refluxed overnight. The mixture was cooled to room temperature, diluted with acetone and the solvent was decanted from the precipitate. The crude solid was washed with acetone (2 times) and diethyl ether (1 time), decanting each time to give 37(3.57 g, 100percent) as a gray solid. Step Two: To a solution of 1-amino-1-hydroxymethylcyclohexane (0.45 g, 3.5 mmol) in n-butanol (8.75 mL), solid N-(2,4-dintrophenyl)-3-benzylpyridinum chloride (37, 1.23 g, 3.3 mmol) was added. The resulting solution was heated to reflux for 2.5 days under a nitrogen atmosphere. The mixture was cooled, diluted with water and filtered. The filtrate was basified with concentrated NH4OH (2 mL) and extracted with ethyl acetate. The aqueous layer was concentrated to dryness to give 38(0.56 g) as a yellow oil which was used without further purification. Step Three: To a solution of crude 38(0.56 g, 3.5 mmol theoretical) in water (10 mL), a solution of potassium ferricyanide (3.3 g, 10 mmol) in water (15 mL) was added dropwise via an addition funnel over 30 minutes at 0¡ã C. A solution of KOH (0.76 g, 13.5 mmol) in water (5 mL) was then added over 30 minutes. Toluene (10 mL) was added and the solution was stirred for one hour at 0¡ã C. The layers were separated, and the aqueous layer was extracted again with toluene. The combined extracts were dried over Na2SO4 and filtered and the filtrate was concentrated under reduced pressure. The residue was chromatographed on silica gel, eluding with 7:13 hexanes:ethyl acetate to give 39(20 mg, 1.9percent, two steps.) Step Four: To a suspension of 39(20 mg, 0.068 mmol) in aqueous KOH (1M, 0.70 mL) potassium persulfate (0.073 g, 0.270 mmol) and ruthenium (III) chloride (1 mg, catalytic) and THF (0.25 mL) were added. The mixture was stirred for 1 hour and extracted with dichloromethane. The aqueous layer was acidified and extracted with ethyl acetate (3 times). The ethyl acetate extracts were combined, dried over MgSO4 and filtered. The filtrate was concentrated under reduced pressure to give 40(0.0148 g, 70percent) as a tan solid. (3S)-3-(1,3-Benzodioxol-5-yl)-3-[({1-[2-oxo-3-(phenylmethyl)-1(2H)-pyridinyl]cyclohexyl}carbonyl)amino]propanoic acid was prepared from 40according to the procedures described in Example 1. 1H NMR (400 MHz, CD3SO2CD3): delta 1.40 (m, 4H), 1.68 (m, 2H), 2.04 (m, 2H), 2.60 (d, J=7.0 Hz, 2H), 3.67 (d, J=15.2 Hz, 1H), 3.72 (d, J=15.2 Hz, 1H), 5.12 (m, 1H), 5.95 (m, 2H), 6.19 (t, J=7.0 Hz, 1H), 6.74 (dd, J=7.8, 1.4 Hz, 1H), 6.76 (d, J=7.8 Hz, 1H), 6.90 (d, J=1.4 Hz, 1H), 7.10 (d, J=5.8 Hz, 1H), 7.20 (m, 5H), 7.57 (d, J=8.4Hz, 1H), 7.66 (dd, J=7.7, 1.8 Hz, 1H).

With the complex challenges of chemical substances, we look forward to future research findings about Ruthenium(III) chloride

Reference£º
Patent; Biediger, Ronald J.; Dupre, Brian; Hamaker, Linda K.; Holland, George W.; Kassir, Jamal M.; Li, Wen; Market, Robert V.; Nguyen, Noel; Scott, Ian L.; Wu, Chengde; Decker, E. Radford; US2003/199692; (2003); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name is Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene][[5-[(dimethylamino)sulfonyl]-2-(1-methylethoxy-O)phenyl]methylene-C]ruthenium(II), as a common heterocyclic compound, it belongs to ruthenium-catalysts compound, and cas is 918870-76-5, its synthesis route is as follows.,918870-76-5

In a glovebox 13 (800 mg, 1.09 mmol) and AgOCN (374 mg, 2.51 mmol) were suspended in 10 ml of tetrahy-drofuran. The mixture was stirred for three hours at room temperature, and then the solvent was removed under vacuum.The residual was dissolved in dichloromethane and filtered through a short pad of silica gel using dichloromethane/diethylether (9:1) as eluent. The green solution containing complex 14 was concentrated under vacuum and the compoundwas precipitated with pentane at room temperature. The green solid was isolated by cannula filtration and washed threetimes with pentane. The solid was transferred in a glovebox and dried under argon atmosphere (744 mg, 91 % of yield).1H NMR (600.17 MHz, CD2Cl2): delta = 16.25 (br s, 1 H), 7.95 (dd, J = 8.6, 2.2, 1 H), 7.24 (d, J = 2.2, 1 H), 7.14 (br s, 4 H),6.99 (d, J = 8.6, 1 H), 4.94 (sep, J = 6.1, 1 H), 4.19 (s, 4 H), 2.27 (s, 6 H), 2.43 (s, 6 H), 2.41 (s, 12 H), 1.11 (d, J = 6.1,6 H). 13C{1H} NMR (150.91 MHz, CD2Cl2): delta= 295.12, 207.94, 155.24, 143.75, 139.94, 139.26, 135.84, 135.21, 131.02,129.94, 129.29, 121.57, 113.36, 76.88, 51.86, 38.07, 21.17, 20.78, 18.45. HRMS (ESI+), m/z: 767.19735 [M+Na]+;calculated for C35H43N5NaO599RuS: 767.19420.

With the complex challenges of chemical substances, we look forward to future research findings about Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene][[5-[(dimethylamino)sulfonyl]-2-(1-methylethoxy-O)phenyl]methylene-C]ruthenium(II)

Reference£º
Patent; Bergen Teknologioverf¡ãring AS; Jensen, Vidar Remi; Occhipinti, Giovanni; EP2826783; (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.301224-40-8,(1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride,as a common compound, the synthetic route is as follows.,301224-40-8

In a Schlenk flask, (H2IMes)Cl2Ru(CH-o-OiPrC6H4) (106 mg, 0.169 mmol, 1 eq) was dissolved in degassed CH2Cl2 (18 mL). 5,7-Dichloro-8-hydroxyquinoline (707 mg, 3.303 mmol, 19 eq) and Cs2CO3 (150 mg, 0.461 mmol, 16 eq) were added. The reaction mixture was stirred in a Schlenk flask under argon atmosphere overnight. (0099) The insoluble residue was filtered over celite. According to a TLC (CH/EE 5:1) two derivatives were formed. The products were separated via column chromatography (CH/EE 5:1) and fully characterized by NMR and crystal structure analysis. Yield=83% (46.5 mg 3 and 91 mg 4). (0100) 3: 1H-NMR (delta, 20 C., CDCl3, 300 MHz): 19.10 (s, 1H, Ru?CH), 8.09 (d J=4.04, 1H, CHhq), 7.95 (d J=8.56; j=1.43, 1H, CHhq), 7.68 (d J=8.43 j=1.30, 1H, CHPhq), 7.49 (s, 1H, CHhq), 7.17 (s, 1H, CHhq), 7.05 (m, 2H, CHhq), 6.56 (d J=8.04, 1H, CHhq), 6.48 (s, 2H, CHmes), 6.43 6,39 (?, 2H, CHph), 6.14 (s, 2H, CHmes), 6.06 (2H, CHhq+ph), 3.97 (5H, CH2+CHisoprop), 2.45 (s, 6H), 2.27 (s, 6H), 1.90 (s, 6H, CH31, 1?, 2, 2?, 3, 3?), 1.43 (d, 3H, CH3isoprop), 1.05 (d, 3H, CH3isoprop). (0101) 3: 13C-NMR (delta, 20 C., CDCl3, 75 MHz): 338.6 (1C, Ru?CH), 227.6 (1C, Ru-C), 162.6, 161.3, 149.7, 149.4, 149.0, 144.2, 143.2, 142.4, 142.3, 138.1 (Cq), 136.9 (Cq), 136.6 (Cq), 135.8 (Cq), 132.3 (CH), 131.7 (CH), 129.3 (CH), 129.2 (CH), 128.7, 127.7 (CH), 126.2, 125.8, 125.7, 122.2 (CH), 121.6 (CH), 121.0 (CH), 119.5 (CH), 118.9, 112.0, 109.2, 76.2 (1C, CHisoprop), 51.6 (2C, CH2-N), 23.1 (1C, CH3isoprop), 21.5 (1C, CH3isoprop), 20.8, 18.8, 18.5 (2C, CH3mes 7, 7?, 8, 8?, 9, 9?). (0102) 4: 1H-NMR (delta, 20 C., CDCl3, 300 MHz): 18.23 (bs, 1H, Ru?CH), 9.00 (d j=4.67 Hz, 1H, CHhq 1), 8.09 (d J=8.56 Hz, 1H, CHhq 3), 7.83 (d J=8.30 Hz, 1H, CHhq 3) 7.57 (s, 1H, CHhq 4 or 4), 7.12 (s, 1H, CHhq 4 or 4), 7.06 (q, 1H, CHhq 2), 6.94 (t, 1h; CHph 3 or 4), 6.59 (s, 2H, CHmes 3+3? or 5+5?), 6.39 (d, 1H, CHph 2 or 5), 6.26 (s, 2H, CHmes 3+3? or 5+5?), (d, 1H, CHph 2 or 5), (t, 1H, Chhq 2), 5.98 (t, 1H, CHph 3 or 4), 5.32 (d j=4.54 Hz, 1H, CHhq 1), 4.54 (m, 1H, CHisoprop), 3.92 (q, 4H, CH2mes), 2.57 (s, 6H), 2.04 (s, 6H), 1.91 (s, 6H, CH3mes 7, 7?, 8, 8?, 9, 9?), 1.53 (d, 3H, CH3isoprop), 1.31 (d, 3H, CH3isoprop). (0103) 13C-NMR (delta, 20 C., CDCl3, 75 MHz): Ru?C not observed, 209.5 (1C, Ru-C), 166.4 (Cq), 160.9 (Cq), 147.7 (Cq), 146.7 (Cq), 147.1 (Cq), 146.7 (Cq), 164.5 (CH), 146.5 (CH), 144.9 (Cq), 141.2 (CH), 137.1 (Cq), 137.0 (Cq), 136.7 (Cq), 136.5 (Cq), 119.3 (Cq), 125.8 (Cq), 132.7 (CH), 132.2 (CH), 129.2 (CH), 129.1 (2C, CH), 129.0 (CH), 128.6 (CH), 127.9 (CH), 126.4 (Cq), 120.7 (CH), 120.1 (CH), 119.7 (CH), 118.0 (Cq), 111.3 (Cq), 110.5 (CH), 106.4 (Cq), 68.7 (1C, CHisoprop) 51.7 (2C, CH2), 22.7, 22.3 (2C, CH3isoprop), 20.9, 18.9, 18.1 (6C, CH3mes 7, 7?, 8, 8?, 9?). (0104) Even if both of the catalysts possess two 5,7-dichloro-8-hydroxyquinolines, they show different NMR patterns. The different structures were revealed by X-ray diffraction. The crystals for the X-ray diffraction measurement were obtained by slow diffusion of Et2O in a saturated solution of CH2Cl2. The two derivatives exhibit a different geometry considering the 8-quinolinolate substituents. In derivative 3, the oxygen atoms of the two quinolinolates are orientated trans to each other, while in derivative 4 these trans positions are occupied by an oxygen and a nitrogen atom of the two different quinolinolates.

The synthetic route of 301224-40-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Technische Universitaet Graz; Slugovc, Christian; Wappel, Julia; US8981024; (2015); B2;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI