Chiral phosphine ligands

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1608-26-0,N,N,N’,N’,N”,N”-Hexamethylphosphinetriamine,as a common compound, the synthetic route is as follows.

General procedure: A mixture of the aminobenzamidine 1 (5.0 mmol) andtris (dimthylamino) phosphine (5.0 mmol) dissolved in anhydroustoluene (10 mL) were heated under reflux for 48 h.After evaporating the solvent in vacuum, the resulting solidproduct was recrystallized from CCl4 (2b, 2d) or alternativelythe obtained oil (2a, 2c) was purified by columnchromatography using silica gel (60-120 mesh) with ethylacetate: petroleum ether (4 : 6) as eluant.2a: N,N-dimethyl-4-(propylimino)-3,4-dihydro-1,3,2-benzodiaza-phosphorin-2(1H)-amineYield : 70%, brown viscous oil. IR (FTIR, nu (cm-1)): nu(C=N) = 1634; nu (NH) = 3319. 1H NMR (CDCl3+DMSO-d6,delta (ppm)): delta = 0.80 (t, 3H, 3JH-H = 6 Hz, CH3-CH2); 1.20 (m,2H, 3JH-H = 6.3 Hz, CH3-CH2); 2.45 (d, 3JHP = 6 Hz, N-CH3);2.47 (d, 3JHP = 6 Hz, N-CH3); 2.90 (t, 2H, 3JH-H = 6.3 Hz, NCH2);5.20(broad s, 2H, NH); 6.50-7.70(m, 4H, Harom). 13CNMR (CDCl3+DMSO-d6, delta (ppm)): 14.90 (CH3-CH2); 29.0(CH3-CH2); 34.10 (C=N-CH2); 34.25 (N-CH3); 36.26 (NCH3);114.90; 122.20; 128.90; 130.50; 132.90; (Carom);133.51 (Carom-N-P); 153.86 (P-N-C=N-CH2). 31P NMR(CDCl3+ DMSO-d6, delta (ppm)): 0.29. Calcd. C12H19N4P : %C= 57.60 % H = 7.60 % N = 22.40; Found: %C = 57.59 % H= 7.65 % N = 22.39., 1608-26-0

The synthetic route of 1608-26-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Hichri, Sarra; Abderrahim, Raoudha; Letters in Organic Chemistry; vol. 13; 4; (2016); p. 289 – 292;,
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.13991-08-7,1,2-Bis(diphenylphosphino)benzene,as a common compound, the synthetic route is as follows.

Under argon atmosphere, silver(I) iodide (235 mg, 1.00 mmol) and 50 mL of the solution of 1,2-bis(diphenylphosphino)benzene (447 mg, 1.00 mmol) in acetonitrile were mixed and the mixture was heated to reflux with stirring for seven hours. The reaction solution was allowed to reach room temperature and the precipitated colorless crystal was filtrated. The obtained filtrated matter was washed with acetonitrile and dried to obtain 531 mg of the complex. The mixture of this complex (49.7 mg) and triphenylphosphine (19.2 mg, 0.0730 mmol) was dissolved in 3 mL of dichloromethane, and the resulting solution was stirred for 30 minutes at room temperature. The reaction solution was concentrated, subjected to recrystallization by slow diffusion of chloroform-diethylether, and dried to provide 30.9 mg of the colorless solid complex. The result of elemental analysis for the obtained complex is shown in Table 2-1, and the composition ratio of the complex was obtained. The present complex corresponds to the above composition formula (3). [Show Image] The NMR data of the obtained complex is provided below. 1H NMR (300 MHz, CDCl3) delta 7.44-7.14 (m, 31H), 7.03 (t, J= 7.2 Hz, 8H); 13C NMR (75 MHz, CDCl3) delta 141.2 (t, J= 22.7 Hz), 134.5 (t, J= 3.0 Hz), 134.2-134.0 (m), 133.3 (d, J= 22.2 Hz), 132.2 (t, J= 10.9 Hz), 129.6 (s), 129.3 (s), 128.5 (d, J= 9.0 Hz), 128.2 (t, J= 4.5 Hz); 31P NMR (122 MHz, CDCl3) delta 3.7 (br, W1/2=159 Hz), -14.8 (br, W1/2 = 450 Hz). The result of DART-MS measurement of the obtained complex is provided below. DART-MS (M/Z): found; 815.16. calcd; 815.13 (M-I)+. Based on the DART-MS measurement of the obtained complex, it was confirmed that the obtained complex contained the following structure.

13991-08-7, As the paragraph descriping shows that 13991-08-7 is playing an increasingly important role.

Reference£º
Patent; Sumitomo Chemical Company, Limited; EP2360162; (2011); 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

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

Complex 1 (0.112 g, 0.20 mmol) was dissolved in dryMeCN (20 ml) under argon, and Me3NO2H2O (0.022 g,0.20 mmol) was added. The color of the solution changed from red to brown immediately. After stirring at room temperature for 0.5 h, the resulting solution was mixedwith dppf (0.056 g, 0.10 mmol) and stirred for 3 h at the room temperature. The solvent was removed on a rotary evaporator, and the residue was subjected to preparativeTLC separation using CH2Cl2/petroleum ether (v/v = 1:1)as the eluent. From the main red band, complex 3 wasobtained as a red solid (0.072 g, 81 percent). IR (KBr disk cm-1): mC:O 2036 (vs), 1973 (vs), 1922 (m). 1H NMR(400 MHz, CDCl3, ppm): 1.67 (s, 6 H, 2 CH, 4 SCHaHe),2.22 (s, 4 H, 4 SCHaHe), 4.22 (s, 4 H, C5H4), 4.46 (s, 4 H,C5H4), 6.35 (s, 4 H, C6H5), 7.12 (s, 6 H, C6H5), 7.35 (m, 12H, C6H5), 7.59 (s, 8 H, C6H5). 31P NMR (161.9 MHz,CDCl3, 85 percent H3PO4, ppm): 55.1 (s). Anal. Calc. for C68-H62Fe5O10P2Se4: C, 48.2; H, 3.7. Found: C, 48.4; H, 3.4 percent.

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; Li, Chang-Gong; Cui, Mao-Jin; Xue, Feng; Zhu, Yong; Li, Yong-Fang; Shang, Jing-Yan; Niu, Hong-Ying; Transition Metal Chemistry; vol. 40; 5; (2015); p. 493 – 500;,
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

7650-91-1,7650-91-1, Benzyldiphenylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Weigh benzyl diphenylphosphine (138.2 g, 0.5 mol), dimethyl carbonate (135.1 g, 1.5 mol),Benzene (68.3 g, 25%) and 80%-Cs2O/SiO2 catalyst (1.37 g, 0.5%) were added to a stainless steel autoclave,The air in the reaction vessel was replaced by N2, and the temperature was raised to 160 C for 8 hours.After completion of the reaction, the cooling water was cooled to 65 C, and the catalyst was recovered by filtration, and the unreacted raw materials and solvent were distilled off under reduced pressure.The product was washed with n-hexane and then dried under vacuum at 60 C for 5 hours to give benzyldiphenylmethylmethyl carbonate (164.9 g) in a yield of about 90%.The methyl carbonate quaternary phosphonium salt benzyl diphenyl methyl carbonate hydrazine (55.0 g, 0.15 mol) was weighed and dissolved in dichloromethane (137.5 g).Trifluoromethanesulfonic acid (22.5 g, 0.15 mol) was added, and the mixture was refluxed under magnetic stirring at 50 C for 3 hours.After completion of the reaction, the solvent was removed by distillation under reduced pressure to give 62.8 g of benzyldiphenylmethyltrifluoromethanesulfonate ionic liquid, yield of about 95%.

7650-91-1 Benzyldiphenylphosphine 603920, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Patent; China Daily Expenses Chemical Institute Co., Ltd.; Geng Tao; Duan Shengfu; Jiang Yajie; Ju Hongbin; Wang Yakui; (8 pag.)CN108440595; (2018); A;,
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

General procedure: A degassed dichloromethane (25.0?mL) solution of [RuCl2(PPh3)3] (96?mg; 0.10?mmol) and dppf (60.0?mg; 0.11?mmol), in a Schlenk flask, was stirred for 30?min followed by the addition of 0.10?mmol of the polypyridyl ligand. After 30?min of stirring the resulting solution was concentrated until ca. 5?mL and addition of 10?mL of diethyl ether afforded a solid, which was collected by filtration, washed with diethyl ether and dried under vacuum.

12150-46-8, As the paragraph descriping shows that 12150-46-8 is playing an increasingly important role.

Reference£º
Article; Davila-Rodriguez, Maria?Jose; Barolli, Joao Paulo; de Oliveira, Katia Mara; Colina-Vegas, Legna; da Silva Miranda, Fabio; Castellano, Eduardo Ernesto; Von Poelhsitz, Gustavo; Batista, Alzir Azevedo; Archives of Biochemistry and Biophysics; vol. 660; (2018); p. 156 – 167;,
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.50777-76-9,2-(Diphenylphosphino)benzaldehyde,as a common compound, the synthetic route is as follows.

50777-76-9, General procedure: (S)-2-{[4-(Methoxycarbonylpropyl]phenyl)aminocarbonyl}indoline (3; 676 mg, 2 mmol) and 2-(diphenylphosphino)benzaldehyde (2a;1.16 g, 4 mmol) were dissolved in MeOH (5 mL). The reaction mixture was heated to 80 ¡ãC in a sealed tube for 48 h. After cooling to r.t., the mixture was extracted with EtOAc and concentrated. The resulting residue was chromatographed on silica gel (eluent:acetone/hexane = 1:2) to give colorless fine prisms; yield: 840 (69percent); mp 115?117 ¡ãC; [alpha]D21 ?169 (c 1.0, CHCl3). 1H NMR (500 MHz, CDCl3): delta = 7.71 (d, J = 6.5 Hz, 1 H), 7.43?7.13 (m,18 H), 6.97?6.91 (m, 3 H), 4.37 (d, J = 8.5 Hz, 1 H), 3.64 (s, 3 H), 3.53 (d,J = 16.5 Hz, 1 H), 3.09 (dd, J = 8.5, 16.5 Hz, 1 H), 2.52 (t, J = 7.5 Hz, 2 H),2.26 (t, J = 7.5 Hz, 2 H), 1.85 (quin, J = 7.5 Hz, 2 H).13C NMR (126 MHz, CDCl3): delta = 174.1, 173.6, 142.3?113.5 (Carom, overlapped), 81.4 (d, JC,P = 25.9 Hz), 64.1, 51.3, 34.3, 33.1, 31.4, 26.1. 31P{1H} NMR (202 MHz, CDCl3): delta = ?18.9 (s).MS (ESI-TOF): m/z = 633 [M + Na]+.

The synthetic route of 50777-76-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Uozumi, Yasuhiro; Matsuura, Yutaka; Suzuka, Toshimasa; Arakawa, Takayasu; Yamada, Yoichi M. A.; Synthesis; vol. 49; 1; (2017); p. 59 – 68;,
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

A mixture of 0.0243 g CuSCN (0.2 mmol), 0.0464 g dpq(0.2 mmol) and 0.1077 g pop (0.2 mmol) were dissolved in the mixed solvents of 5 mL CH3OH and 5 mL CH2Cl2, stirred at room temperature for 6 h. The filtrate was evaporated slowly at room temperature for around 5 days to yield yellow crystalline products.Yield: 77%. Anal. Calc. for C51H36CuN5OP2S: C, 68.60; H, 4.03; N,7.80. Found: C, 66.60; H, 4.23; N, 7.60%. 1H NMR (600 MHz, DMSO,298 K): delta, ppm: 6.66-7.42 (m, pop-aromatic ring), 7.98-9.53 (m,dpq-heteroaromatic ring); 31P NMR (600 MHz, DMSO, 298 K): delta,ppm: 11.65 (s, pop). IR for 9 (KBr pellets, cm-1): 3425(w), 2048(vs), 1564(w), 1434(vs), 1386(s), 1218(s), 1122(m), 998(w), 753(s), 512(s), 420(w)., 166330-10-5

The synthetic route of 166330-10-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Kuang, Xiao-Nan; Lin, Sen; Liu, Jian-Ming; Han, Hong-Liang; Liu, Min; Xin, Xiu-Lan; Yang, Yu-Ping; Li, Zhong-Feng; Jin, Qiong-Hua; Li, Si-Fan; Li, Yue-Xue; Feng, Yue-Bing; Polyhedron; vol. 165; (2019); p. 51 – 62;,
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

6224-63-1, Tri-m-tolylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: A solution of N,N,N’-trisubstitutedacyl thiourea (0.564mmol) and phosphine ligand (0.564mmol) in a minimal amount of methanol, was added drop wise to a solution of K2PdCl4 (0.564mmol) in 40mL of methanol at 50?60¡ãC. The resulting mixture was stirred for 3?4 h and the precipitated complexes (1?8) (Scheme 1 ) were filtered, and washed with methanol. Single crystal X-ray diffraction measurement quality crystals were obtained by slow evaporation of chloroform/methanol (3:1) solution of the complexes. The 1H and 13C NMR, FT-IR, the elemental analyses, melting point data for the complexes (1?8) are as follows:(6) (Tri(m-tolyl)phosphine-kappaP)(1-(4-fluorobenzoyl)-3-(N-methylphenyl) thioureido-kappa2(O, S)palladium(II) chloride Quantities used were 0.184?g (0.564?mmol) K2PdCl4, 0.163?g (0.564?mmol) 1-(4-fluorobenzoyl)-3-(N-methylphenyl)thiourea, 0.172?g (0.564?mmol) tri(m-tolyl)phosphine in methanol. Yield???80percent; Orange solid; m.p. 192-194?¡ãC. FTIR (cm-1); 3142(w), 2998(w), 2879(w), 1617(m), 1509(s), 1422(s), 1362(w), 1310(w), 1244(w), 1192(w), 1090(m), 1064(w), 1020(w), 990(w), 940(m), 916(s), 864(s), 780(s), 746(s), 690(s), 619(w). H NMR (300?MHz, CDCl3) delta 2.30 [(s, 9H, 3(-CH3)],3.59 (s, 3H, N-CH3), 6.86-8.41 (m, 21H, ArH); 13C NMR (75.5?MHz, CDCl3) delta 21.3 (3C), 42.2 (C), 114.7 & 114.9 (2C, d, 13C-19F, 2J?=?19.7?Hz), 127.0 (C), 127.6 (C), 127.8 (C), 127.9 (C), 128.4 (C), 129.3 (C), 132.0 (C), 132.7 & 132.9 (2C, d, 13C-19F, 3J?=?10.6?Hz), 135.3 &137.9 (1C, d, 13C-19F, 1J?=?272.0?Hz), 135.4(C), 137.8 (C), 145.5 (C), 168.7 (C), 171.0 (1C, C=O), 173.8 (1C, C=S); 31P NMR (121.5?MHz, CDCl3) delta 34.80; Anal. Calc. for C36H33ClFN2OPPdS (Mol. mass: 733.57) C, 58.94; H, 4.53; N, 3.82; S, 4.37. Found: C, 58.99; H, 4.58; N, 3.89; S, 4.42.

6224-63-1, 6224-63-1 Tri-m-tolylphosphine 80362, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Khan, Muhammad Riaz; Zaib, Sumera; Khan, Azim; Badshah, Amin; Rauf, Muhammad Khawar; Imtiaz-ud-Din; Tahir, Muhammad Nawaz; Shahid, Muhammad; Iqbal, Jamshed; Inorganica Chimica Acta; vol. 479; (2018); p. 189 – 196;,
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: A mixture of Tetrakis(acetonitrile)copper(I) tetrafluoroborate ([Cu(NCCH3)4]BF4, 3.11 g, 33.0 mmol) and Bis[(2-diphenylphosphino)phenyl]ether (O[C6H4P(C6H5)2]2, DPEphos, 5.33 g, 33.0 mmol) in 300 ml of CH2Cl2 was stirred at room temperature for 3 h. Upon addition of 1,10-Phenanthroline (C12H8N2, phen, 1.78 g, 33.0 mmol) the clear solution turned bright yellow, remained clear, and was stirred for an additional 2 h. Approximately 900 ml of diethyl ether ((CH3CH2)2O) was added to the solution to precipitate a bright yellow solid. The solution containing the newly precipitated solid was then left in the refrigerator for one day. It was vacuum filtered using a medium frit, washed with diethyl ether and dried under vacuum. A bright yellow powder was isolated (yield: 8.00 g, 93 percent)., 166330-10-5

The synthetic route of 166330-10-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Kubi?ek, Katharina; Thekku Veedu, Sreevidya; Storozhuk, Darina; Kia, Reza; Techert, Simone; Polyhedron; vol. 124; (2017); p. 166 – 176;,
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

6372-42-5, Cyclohexyldiphenylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,6372-42-5

General procedure: A mixture of AgBr (0.018g, 0.1mmol), diphenyl(p-tolyl) phosphine (P5) 0.028g (0.1mmol) and thiosemicarbazide (L1) 0.018g (0.2mmol) in 20ml of acetone/ methanol (1:1) was refluxed with continuous mechanical stirring overnight at 70C. The light yellow transparent solution obtained was filtered to avoid any impurity and slow addition of water resulted precipitation of final product. The product was collected by filtration, washed with water and dried. Again in situ transformation of L1 to L2 had taken place. Yield 0.078g, 89%. Anal. Calc. for C42H43AgBrN3P2S: C, 57.8; H, 4.9; N, 4.8. Found: C, 57.8; H, 4.9; N, 4.8%. IR cm-1: 3531 (w), 3479 (m), 3413 (m), 3119 (s), 2926 (s), 2842 (s), 1633 (s), 1608 (s), 1546 (m), 1456 (s), 1384 (s), 1148 (m), 1058 (s), 989 (ms), 819 (m), 767 (m), 666 (s), 521 (m).

The synthetic route of 6372-42-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Altaf, Muhammad; Stoeckli-Evans, Helen; Cuin, Alexandre; Sato, Daisy Nakamura; Pavan, Fernando Rogerio; Leite, Clarice Queico Fujimura; Ahmad, Saeed; Bouakka, Mohammed; Mimouni, Mostafa; Khardli, Fatima Zahra; Hadda, Taibi Ben; Polyhedron; vol. 62; (2013); p. 138 – 147;,
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