Day: September 1, 2020

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

NHC ligand precursor 21 (9 mg, .03 mmol), KOz-Bu(F6) (6 mg, .03 mmol), and ruthenium complex 911 (13 mg, .02 mmol) were all combined in CgDbeta in a screw cap NMR tube in a glove box. The NMR tube was removed and heated at 600C for 2.5 hour in a fume hood. Conversion to catalyst 22 was determined to be 14% by proton NMR. 1H NMR (300 MHz, CDCl3) delta 17.19 (IH, s).

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

Reference£º
Patent; MATERIA, INC.; CALIFORNIA INSTITUTE OF TECHNOLOGY; WO2007/75427; (2007); 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 ruthenium-catalysts compound, name is (1,3-Dimesitylimidazolidin-2-ylidene)(2-isopropoxybenzylidene)ruthenium(VI) chloride, and cas is 301224-40-8, its synthesis route is as follows.,301224-40-8

A further example of a synthesis producing an NHC containing cis complex is shown below. [0088] HII (200 mg) and P(OiPr)3 (5 eq) were stirred in for 72 h. The crude 65 was recrystallised from DCM/pentane. [0089] 1H (400 MHz, 298K): 16.05 (d, 1H, J=35.3 Hz, C?CH), 10.24 (d, 1H, J=9.7 Hz, Ph-H), 6.87-6.83 (m, 2H, Ph-H), 6.78 (s, 1H, Ph-H), 6.61 (s, 1H, Ph-H), 6.19-6.16 (m, 2H, Ph-H), 4.67 (brs, 2H, PO-CH-CH3), 4.09-4.06 (m, 1H, Ph-O-CH-CH3), 4.04 (brs, 1H, PO-CH-CH3), 3.43-3.40 (m, 1H), 3.16-3.02 (m, 3H), 2.89 (s, 3H, Mes-CH3), 2.58 (s, 3H, CH3), 2.46 (s, 3H, CH3), 2.42 (s, 3H, CH3), 2.18 (s, 3H, CH3), 1.92 (s, 3H, CH3), 1.48-0.80 (m, 24H, PO-CH-CH3). [0090] 31P{1H} (121.49 MHz, 298K): 128.7 (s)

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
Patent; University Court of the University of St. Andrews; Cazin, Catherine; US2014/228563; (2014); A1;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Ruthenium(III) chloride hydrate, cas is 20759-14-2, it is a common heterocyclic compound, the ruthenium-catalysts compound, its synthesis route is as follows.,20759-14-2

(4) Preparation of trans-3’oxospiro[cyclohexane-1,1′(3’H)-isobenzofuran]-4-carboxylic acid A mixture of 4-hydroxymethylspiro[cyclohexane-1,1′(3’H)-isobenzofuran]-3’one (190 mg), chloroform (2.0 mL), acetonitrile (2.0 mL) and sodium phosphate buffer (pH6.5, 2.0 mL) was cooled to 0 C., to which sodium periodate (612 mg) and ruthenium(III) chloride n-hydrate (10 mg) were added and the mixture was stirred for 30 minutes. The reaction mixture was stirred together with 1N hydrochloric acid (2.0 mL) for 30 minutes and partitioned between water (50 mL) and ethyl acetate (50 mL). The organic layer was washed with saturated saline solution, dried over anhydrous Na2SO4 and then concentrated. The residue was purified by column chromatography on silica gel (chloroform/methanol=100/1) to give the subject compound (98.6 mg).

20759-14-2 is used more and more widely, we look forward to future research findings about Ruthenium(III) chloride hydrate

Reference£º
Patent; Fukami, Takehiro; Kanatani, Akio; Ishihara, Akane; Ishii, Yasuyuki; Takahashi, Toshiyuki; Haga, Yuji; Sakamoto, Toshihiro; Itoh, Takahiro; US2002/188124; (2002); 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,301224-40-8

Hoveyda-Grubbs second generation catalyst (150 mg, 0.24 mmol) and potassium 2,4,6-trimethylbenzenethiolate 2c (59 mg, 0.31 mmol) were transferred to a 25 mL Schlenk flask, followed by addition of 5 mL of benzene and 1 mL of THF under argon. Then the mixture was stirred vigorously at 20 C. for 30 min. During this time the color of the mixture turned from light green to dark green. The reaction mixture was filtered, and the volume of the filtrate reduced to about 3 mL. Hexane (15 mL) was then added to the dark-green solution under stirring to precipitate the ruthenium complex 4c as a dark green powder (98.5 mg, 55.3%). Further purification was accomplished by dissolving the product in benzene and precipitating with hexane. Crystals for X-ray crystal structure determination were grown by slow diffusion of pentane to a concentrated solution of 4c in fluorobenzene, see FIG. 13 and Table 5. (0127) 1H NMR (400.13 MHz, CDCl3): delta=14.89 (s, 1H), 7.20 (m, 1H), 7.09 (s, 2H), 7.05 (s, 2H), 6.78-6.73 (m, 2H), 6.57 (br s, 1H), 6.14 (d, 1H), 5.99 (br s 1H), 4.13 (m, 4H), 3.95 (sep, 1H), 2.62 (s, 6H), 2.54 (s, 6H), 2.42 (s, 6H), 2.28 (br s, 3H), 2.03 (d, J=6.1 Hz, 3H), 0.92 (d, J=6.1 Hz, 3H), 0.81 (br s, 3H). 13C NMR (100.6 MHz, CD2Cl2): delta=269.24, 211.58, 151.83, 145.22, 139.26, 138.89, 138.82, 138.16, 133.95, 129.72, 129.39, 127.54, 127.30, 122.75, 122.40, 114.07, 75.20, 53.84, 52.25, 21.40, 21.20, 21.17, 20.79, 19.89. (0128) A corresponding ORTEP-style diagram of 4c is shown in FIG. 13. Selected geometrical parameters: Ru1-C16=1.842 , Ru1-S1=2.338 , Ru1-Cl1=2.375 , Ru1-O1=2.236 , Ru1-S1-C1=107.66, Cl1-Ru1-S1=159.61.

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
Patent; Bergen Teknologioverforing AS; Jensen, Vidar R.; Occhipinti, Giovanni; Hansen, Frederick Rosberg; US8716488; (2014); B2;,
Highly efficient and robust molecular ruthenium catalysts for water oxidation
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

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

EXAMPLE 1 Metathesis by Ethenolysis of Methyl Oleate Catalyzed by a Type 3 Complex (FIG. 1) in an Ionic Liquid; 1 ml of 3-butyl-1,2-dimethylimidazolium bis-triflylamide with formula [BMMI]+[N(CF3SO2)2]- pre-dried overnight at 80 C., 148 mg of methyl oleate (source: Fluka, with a purity higher than 98%) and 15 mg of the complex with formula Cl2Ru(CH-o-O-iPrC6H4)PCy3 (synthesized by reacting the 1st generation Grubbs complex with formula Cl2Ru(CHC6H5)(PCy3)2 with 1-isopropoxy-2-vinylbenzene in the presence of CuCl), this corresponding to 5% molar of catalyst with respect to methyl oleate, were introduced, in an inert atmosphere of argon, into an autoclave reactor provided with an agitation system and a pressure sensor. The autoclave was then placed under vacuum and pressurized to obtain a pressure of 10 bars (1 MPa) of ethylene (origin: Alphagas, quality N25). The temperature was kept constant at 20 C. The medium was stirred at ambient temperature for 2 hours, then the excess ethylene was slowly purged by returning to atmosphere pressure at a temperature not exceeding 20 C. and the autoclave was again placed under an atmosphere of argon. The products were separated from the ionic liquid by adding 2 to 3 ml of heptane distilled over CaH2 and degassed. An aliquot (100 mul) of the extracted solution was passed through a short silica column (2 cm) eluted with diethyl ether. It was analyzed by gas phase chromatography (ZB-1 column, 100% dimethylpolysiloxane, 30 metres, helium vector gas 2 ml/min, temperature programming: 60 C. then 5 C./min to 220 C.) coupled to a mass spectrometer. The methyl oleate conversion was 95%. It was calculated using decane as an internal reference. The reaction products were composed of 1-decene (fraction A) and methyl decenoate (fraction B). The presence of 1-decene isomers was not detected. Homo-metathesis products were present in trace amounts and could not be quantified.

With the rapid development of chemical substances, we look forward to future research findings about Benzylidenebis(tricyclohexylphosphine)dichlororuthenium

Reference£º
Patent; Olivier-Bourbigou, Helene; Vallee, Christophe; Hillion, Gerard; US2007/179307; (2007); 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,50982-12-2

A mixture of [RuCl2(COD)]n (309 mg, 1.103 mmol), PCy3 (309 mg, 1.103 mmol) and Id (248 mg, 1.103 mmol) was stirred in toluene (10 ml) at 115 C for 48 h (in a KONTES pressure tube). After cooling, the brick colored precipitate was filtered on a filter frit, washed with Et20 (3 x 10 ml) and partially vacuum dried on the filter (vacuum pump). The residue was extracted from the filter frit with dichloromethane (6 >< 3 ml). The obtained solution was layered with Et20 (100 ml). Red-brown crystals were collected in few days (521 mg, 70%> yield). Elem. Anal: Calcd for (0461) C30H53Cl2N2PRuS (676.77): C, 53.24; H, 7.89; N, 4.14%. Found: C, 53.10; H, 7.95; N, 4.05%. 31P{1H} (162 MHz, CDC13, r.t.): delta 27.0 (s). 1H NMR (400 MHz, CDC13, r.t.): delta 0.78-3.90 (overlapped m, 47H), 5.57 (brs, 1H, NH), 7.22-7.53 (m, 3Eta), 8.10-8.30 (m, 2Eta). 13C{1H} (100.5 MHz, CDC13, r.t., selected without PCy3 carbon atoms): delta 46.7 (s, 1C), 46.8 (s, 1C), 48.5 (s, 1C), 52.3 (s, 1C), 54.2 (s, 1C), 67.2 (s, 1C), 128.2 (s, 2Cmeta, Ph), 129.4 (s, Cpara, Ph), 134.9 (s, 2Cortho, Ph), 137.8 (s, Cipso, Ph).

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

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

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

A suspension of 3.07 g (3.73 mmol) of [RuCl2(PCy3)2(phenylmethylene)] (commercial available from Sigma-Aldrich Inc., St. Louis, USA), 380 mg (3.84 mmol) copper chloride and 1.06 g (4.10 mmol) 4-chloro-2-trifluoromethyl-8-vinyl-quinoline in 135 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 2:1) and finally digested in 50 ml pentane at room temperature for 30 min to yield 429 mg (17percent) of the title compound as dark green crystals. MS: 697.0 (M+). 31P-NMR (121 MHz, C6D6): 54.2 ppm. 1H-NMR (300 MHz, C6D6): 1.18-2.35 (m, 30H); 2.60 (q, J=12.0Hz, 3H); 6.82 (t, J=6.0Hz, IH); 7.01 (d, J=3.0Hz, IH); 7.55 (d, J= 6.0Hz, IH); 7.89 (d, J=6.0Hz, IH); 17.80-17.90 (m, IH).

With the rapid development of chemical substances, we look forward to future research findings about Benzylidenebis(tricyclohexylphosphine)dichlororuthenium

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

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

In a glovebox complex 16 (0.125 g, 0.200 mmol) was dissolved in dichloromethane (3 ml), resulting in a darkgreen solution. AgOCN (149.89 g/mol, 0.460 mmol, 0.0689 g, 2.3 eq.) was suspended in DMF (2 ml) and slowly added.The reaction mixture was stirred for 3.5 h at room temperature before it was filtered and the resulting brown-greensolution dried in vacuum. The residual was dissolved in toluene and the resulting solution was filtered and dried invacuum to give complex 17 as a brown foam (125 mg, yield = 98 %). 1 H NMR (400.13 MHz, C6D6): delta = 16.65 (s, 1 H),7.06 (d, J = 7.4, 2 H), 6.86 (s, 4 H), 6.67 (t, J = 7.4, 1 H), 6.22 (d, J = 8.3, 1 H), 6.12 (s, 2 H), 4.25 (sep, J = 6.1, 1 H),2.23 (s, 12 H), 1.86 (s, 6 H), 1.07 (d, J = 6.1, 6 H). Complex 17 was dissolved in THF (5 ml) and 2a (78 mg, 0.200 mmol)was added as a solid in small portions. Residual reactant was transferred into the reaction mixture as a solution/suspensionin THF (1.5 ml). After 2 h a dark green solution had formed. The mixture was stirred for another 70 hours before all volatiles were removed under reduced pressure. The residual was dissolved in a minimum amount of dichloromethane,and then pentane was slowly added, in such a way as to obtain two separate layers, which were allowed to diffuse slowly(one week) into each other at -32C. The dark green crystals of 8a?CH2Cl2?C5H12 were isolated and washed three timeswith pentane and dried in the glovebox (82 mg, yield = 38 %).1H NMR (600.17 MHz, CD2Cl2): delta = 14.44 (s, 1 H, Ru=CH), 7.68-7.59 (br m, 2 H), 7.59-7.50 (br m, 3 N), 7.46-7.41 (m,2 H), 7.38-7.30 (m, 3 H), 7.27-7.21 (m, 1 H), 7.18 (br d, J = 1.9, 1 H), 7.05-6.97 (br m, 3 H), 6.95 (s, 2H), 6.90-6.70 (brm, 8 H), 6.60 (br dd, J = 7.5, 1.5 Hz, 1 H), 6.54 (br d, J = 8.3, 1 H), 4.25 (sep, J = 6.1 Hz, 1H), 2.41 (s, 6H), 2.13 (s, 6H),1.97 (s, 6H), 0.94 (d, J = 6.1 Hz), 0.59 (d, J = 6.1 Hz). 13C{1H} NMR (150.91 MHz, CD2Cl2): delta= 272.51, 272.48, , 175.90,153.92, 149,22, 147,26, 145,54, 145.17, 142.73, 141.54, 141.03, 139.19, 137.57, 137.30, 137.15, 136.07, 131.70,131.19, 129.28, 129.05, 128.98, 128,82, 128,56, 128.32, 127.84, 127.72, 127.60, 127.26, 126.98, 126.91, 125.63,124.96, 122.79, 122.16, 113.11, 76.29, 21.26, 21.07, 20.70, 19.77, 18.51. HRMS (ESI+), m/z: 955.28427 [M+Na]+;calculated for C56H53N3NaO2101RuS: 955.28120.

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

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