Tag: M.W:500-600

12150-46-8, 1,1-Bis(diphenylphosphino)ferrocene is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: The reactions were run in a CEM Corp. MARS microwave fitted with a fiber optic temperature probe and a port on top for a reflux condenser.1 mmol of Mo(CO)6 and dppe (0.425 g, 1.1 mmol) were combined with 20 mL of 1-propanol in a two-neck 100 mL RB flask. To this mixture was added NaBH4 (0.128 g, 3.3 mmol). The flaskwas placed in themicrowave and a reflux condenser attached through a hole in the top of the microwave. The mixture was sparged with nitrogen. The mixture was heated under nitrogen at 400 W for 1.5 min to reach reflux temperature. Once the reflux temperature was reached the microwave power was reduced and the temperature maintained for 18 min. The mixture was cooled to room temperature and 2?4 mL of water was added to the reaction to dissolve excess NaBH4 and promote product precipitation. The reaction was cooled ?10 ¡ãC for several hours. The light yellow complex was filtered in air and washed with 2¡Á5 mL of petroleum ether/diethyl ether(1:1) mixture resulting in 580 mg of Mo(CO)4dppe after drying, a 95percent yield.

12150-46-8, 12150-46-8 1,1-Bis(diphenylphosphino)ferrocene 51341936, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Birdwhistell, Kurt R.; Schulz, Brian E.; Dizon, Paula M.; Inorganic Chemistry Communications; vol. 26; (2012); p. 69 – 71;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.166330-10-5,(Oxybis(2,1-phenylene))bis(diphenylphosphine),as a common compound, the synthetic route is as follows.

General procedure: NHC-Cu(I) complexes 1-3 were synthesized by the following route:a solution of imidazolium salt (0.4 mmol), copper powder (0.032 g,0.5 mmol) and POP (0.22 g, 0.4 mmol) reacted in CH3CN (5 mL) at60 C for 24 h. The resulting mixture was filtered through a plug ofCelite and concentrated to ca. 1 mL. Addition of Et2O (10 ml) to thefiltrate afforded a pale yellow precipitate, which was collected andwashed with Et2O. And the productwas recrystallized with ethanol., 166330-10-5

As the paragraph descriping shows that 166330-10-5 is playing an increasingly important role.

Reference£º
Article; Wang, Jinglan; Liu, Shaobo; Xu, Shengxian; Zhao, Feng; Xia, Hongying; Wang, Yibo; Journal of Organometallic Chemistry; vol. 846; (2017); p. 351 – 359;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

63995-70-0, Sodium 3,3′,3”-phosphinetriyltribenzenesulfonate is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,63995-70-0

Under argon protection,(CH3 (EO) 16N + H = C (N (CH3) 2) 2] [CH3SO3-] and 10 mL of acetonitrile were added to a 50 mLSchlenk flask (SO3Na+)3-R6,4 ¡¤ 73 mmol The reaction mixture was stirred at room temperature for 72 hours. The filtrate was filtered under reduced pressure to give acetonitrile as an orange-yellow viscous liquid in 95% yield.

As the paragraph descriping shows that 63995-70-0 is playing an increasingly important role.

Reference£º
Patent; Qingdao University of Science and Technology; JIN, XIN; LI, SHU MEI; ZHAO, KUN; (11 pag.)CN103483381; (2016); B;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

1070663-78-3, Dicyclohexyl(2′,4′,6′-triisopropyl-3,6-dimethoxy-[1,1′-biphenyl]-2-yl)phosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1070663-78-3, EXAMPLE TWELVE: Synthesis of Precatalyst 10; Ligand 1 (BrettPhos)An oven-dried schlenk tube, which was equipped with a magnetic stir bar and fitted with a rubber septum, was charged with Me2Pd(TMEDA) (253 mg, 1 mmol) and 1 (537 mg, 1 mmol). The vessel was evacuated and backfilled with argon (this process was repeated a total of 3 times) and the 2-(2-chorophenyl)ethylamine (156 mg, 1 mmol) and MTBE (8 mL) were added via syringe and the reaction mixture was heated to 55 0C for 5 h. The reaction mixture was then cooled to 0 0C and a white precipate was filtered and washed with cold MTBE. The white product was then taken up in CH2Cl2 and concentrated under reduced pressure (done to remove any remaining MTBE) to yield the product as a white solid (645 mg, 93% yield). 1H NMR (300 MHz, CDCl3) delta: 7.17 (s, 2H), 7.09-6.84 (m, 6H), 3.85 (s, 3H), 3.38 (s, 3H), 3.17-0.00 (m, 49 H) ppm. 31P NMR (121 MHz, CDCl3) delta: 42.2 ppm. IR (neat, cm”1): 3303, 2929, 1658, 1462, 1384, 1256, 1010, 755.

As the paragraph descriping shows that 1070663-78-3 is playing an increasingly important role.

Reference£º
Patent; MASSACHUSETTS INSTITUTE OF TECHNOLOGY; WO2009/76622; (2009); A2;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

12150-46-8, 1,1-Bis(diphenylphosphino)ferrocene is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

DPPF (55 mg, 0.1 mmol) was added to a rapidly stirred, 10 mlCH2Cl2 suspension of RuCl2(PPh3)3 (96 mg, 0.1 mmol). A colorchange from purple-black to red was observed within a few minutes.The solutionwas stirred for 30 min, then a CH2Cl2 solution of2-aminopyridine (9.4 mg, 0.1 mmol) was added, giving an immediatecolor change to yellow-green. After a further 30 min, thesolvent was removed in vacuo and 5ml of diethyl ether (Et2O) wereadded. The yellow product was filtered off, washed twice withether (2 5 ml), and then dried under vacuum. Yield: 73 mg (93percent).Anal. Calcd for C39H34Cl2N2P2FeRu: C, 57.07; H, 4.15; N, 3.41. Found:C, 56.73; H, 4.16; N, 3.42. 1H NMR (DMSO?d6): 4.32 (s, br. 8H, C5H4),4.55 (s, br. 2H, -NH2, Py), 6.44 (m, 1H, CH, Py), 7.20e7.34 (m, 20H,Ph), 7.38 (m, 1H, CH, Py), 7.87 (m, 1H, CH, Py). 13C{1H} NMR(DMSO?d6): 72.1 (s, C5H4), 75.0 (s, C5H4), 79.1 (s, C5H4), 107.9 (s, Py),111.7 (s, Py), 126.2 (d, 2JC-P 5.0, Ph), 128.7 (d, 1JC-P 6.5, Ph), 133.2(d, 1JC-P 19.0, Ph), 135.8 (d, 1JC-P 98.0, Ph), 136.8 (s, Py), 147.6 (s,Py),. 159.7 (s, Py). 13C{1H,31P} NMR (DMSO?d6): the above 13C{1H }signals became singlets. 31P{1H} NMR (DMSO?d6): 32.34 (br, s). IR(cm1): 3298, 3188, 3102, 3057 (nN-H and nC-H); 1875, 1602, 1533,1478, 1433 (nCC, and C-H, N-H bending), 1154, 1095, 1032, 747, 697

12150-46-8, 12150-46-8 1,1-Bis(diphenylphosphino)ferrocene 51341936, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Ge, Sai; Zhang, Jin; Zhao, Jianguo; Ulhaq, Imran; Ma, Guibin; McDonald, Robert; Journal of Organometallic Chemistry; vol. 879; (2019); p. 7 – 14;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

12150-46-8, 1,1-Bis(diphenylphosphino)ferrocene is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solutionof [C7H7][BF4] (64.6 mg, 0.363 mmol), in CHCl3(13 mL) dppf (100.1 mg, 0.181 mmol), was added and the solution was stirred atreflux for 7 hours. The solution was cooled and then stirred at roomtemperature for 13 hours. An orange solid precipitated and was collected byfiltration and dried under vacuum. Yield: 129.8 mg (79 percent).Anal. Calcd. For C48H42B2F8FeP2:C, 63.34; H, 4.65; N, 0.00. Found: C, 63.72; H, 4.95; N, 1H NMR (400 MHz, CDCl3,ppm): d 7.85 ? 7.65 (m, 20H, Ph), 6.37 (m, 4H, H4), 6.22 (m, 4H, H3), 5.07 (m, 4H, H2),4.84 (m, 4H, H5), 4.42 (m, 4H, H6), 4.18 (m, 2H, H1),.19F NMR (376.2 MHz, CDCl3,25 ¡ãC): delta -151.9 (s, F1). 31P{1H}-NMR(CDCl3, 25 C): 23.8 (s, P1).

12150-46-8, The synthetic route of 12150-46-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Kruse, Samantha M.; Hurst, Stephanie K.; Tetrahedron Letters; vol. 56; 46; (2015); p. 6319 – 6322;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.12150-46-8,1,1-Bis(diphenylphosphino)ferrocene,as a common compound, the synthetic route is as follows.

The heteroleptic nickel, palladium and platinum complexes (1?10) were prepared according to the general procedure shown in Scheme 1. To a stirring 15 ml methanolic solution of the ligand K2(p-CH3C6H4SO2N=CS2)¡¤2H2O (0.18 g, 0.5 mmol), K2(p-ClC6H4SO2N=CS2)¡¤2H2O (0.19 g, 0.5 mmol), K2(p-BrC6H4SO2N=CS2)¡¤2H2O (0.21 g, 0.5 mmol) or K2C2H5OCO(CN)CCS2 (0.13 g, 0.5 mmol) a 10ml aqueous solution of NiCl2¡¤6H2O (0.12 g, 0.5 mmol), K2PdCl4 (0.163 g, 0.5 mmol) or K2PtCl4 (0.21 g, 0.5 mmol) was added and in each case the reaction mixture was stirred for half an hour to get a clear solution. To this 25 ml solution was added a 10 ml dichloromethane solution of 1,1?-bis(diphenylphosphino)ferrocene (0.28 g, 0.5 mmol) with vigorous stirring and then further stirred for 12 h in the case of Ni and 24 h for Pd and Pt complexes. The volume of the reaction mixtures were reduced to 15 ml on rotary evaporator and the solid products thus obtained were filtered off and washed with H2O?CH3OH (40:60 v/v) and dried in vacuo over calcium chloride.

12150-46-8, 12150-46-8 1,1-Bis(diphenylphosphino)ferrocene 51341936, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Singh, Santosh K.; Chauhan, Ratna; Diwan, Kiran; Drew, Michael G.B.; Bahadur, Lal; Singh, Nanhai; Journal of Organometallic Chemistry; vol. 745-746; (2013); p. 190 – 200;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

146960-90-9, 1,1′-Bis(dicyclohexylphosphino)ferrocene is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

537 mg (1.73 mmol) of Rh(COD)(acac) was mixed with 10ml of MEK in a small Schlenk flask. To the resulting slurry was added by syringe 0.23 ml of 48% aqueous tetrafluoroboric acid (1.76 mmol) over a period of 2 minutes, resulting in a red solution. After 10 minutes, 0.1 ml (0.83 mmol) of 1 ,5-cyclooctadiene was added by syringe. The brown red slurry was stirred for 20 minutes and then 1g of 1,1′-bis-(dicyclohexylphosphino)ferrocene (DCyPFC) (1.73 mmol) was added. A clear red solution resulted. The stirred solution was then reduced by evaporating MEK solvent. Removal of the ketone solvent was continued until a slurry of the cationic complex in about 3 ml of residual solvent was obtained. To this slurry was added 3 ml of ethanol. The resulting orange slurry was degassed and stripped to about 4 ml of ethanol/MEK. The remaining thick slurry was stirred at room temperature for 1 hour before being filtered and washed with 2×2 ml of cold ethano.. After drying overnight (1 mbar, 2O0C), gave 1.44 g of complex [Rh cod DCyPFC] BF4 , Yield = 95.4 % (1.65 mmol)., 146960-90-9

The synthetic route of 146960-90-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; JOHNSON MATTHEY PUBLIC LIMITED COMPANY; NEDDEN, Hans Guenter; WO2010/1173; (2010); A1;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.63995-70-0,Sodium 3,3′,3”-phosphinetriyltribenzenesulfonate,as a common compound, the synthetic route is as follows.,63995-70-0

General procedure: Palladium complexes were synthetized according to a modified literature procedure [27].Pd(PPh3)4 (103 mg, 0.089 mmol.) was dissolved in 2 g of degassed toluene into a Schlenk tube under nitrogen. The corresponding phosphane (1.5 equiv., 0.133 mmol) was dissolved in 2 g of D2O and cannulated onto the palladium solution. The mixture was stirred for 30 min at room temperature. After decantation, the organic phase was removed and a new degassed Pd(PPh3)4 solution was added to the previous aqueous solution which underwent again a 30 min stirring period to ensure an optimal extraction of the palladium by the hydrosoluble ligand. After decantation, the aqueous phase was recovered. The obtained PdLn (n = 2, 3 or 4) solution was then used for the 31P{1H} NMRstudy. The previous solution usually contained a small excess of free ligand. Study in the presence of RAME-beta-CD was conducted as follow: to 1 mL of the above solution was introduced under nitrogen the required amount of RAME-beta-CD. After 15 min of stirring, the solution was transferred via cannula into a nitrogen pressurized 5 mm NMR tube.

63995-70-0 Sodium 3,3′,3”-phosphinetriyltribenzenesulfonate 6099338, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Ferreira, Michel; Bricout, Herve; Tilloy, Sebastien; Monflier, Eric; Molecules; vol. 22; 1; (2017);,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

166330-10-5, (Oxybis(2,1-phenylene))bis(diphenylphosphine) is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Under a N2 atmosphere, [(CH3CN)4Cu]BF4 (1.0 equiv) and theorganic phosphine ligand (2.0 equiv for PPh3 and TPA-PPP; 1.0equiv for DPEPHOS and XANTPHOS) were mixed in CH2Cl2. Afterstirring for 2 h at room temperature, the corresponding 2,2′-bipyrimidine-based ligand (0.5 equiv) was added. The reaction wasallowed to proceed at room temperature for 4 h. The solvent wasremoved under reduced pressure. The colored residue was dissolvedin CH2Cl2 (2 mL) and precipitated in diethyl ether. Theprecipitation was collected by filtration and washed with diethylether three times. The title Cu(I) complexes were obtained ascolored solids in high yields., 166330-10-5

166330-10-5 (Oxybis(2,1-phenylene))bis(diphenylphosphine) 4285986, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Yang, Xiaolong; Yan, Xiaogang; Guo, Haoran; Liu, Boao; Zhao, Jiang; Zhou, Guijiang; Wu, Yong; Wu, Zhaoxin; Wong, Wai-Yeung; Dyes and Pigments; vol. 143; (2017); p. 151 – 164;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate