Chiral phosphine ligands

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.719-80-2,Ethoxydiphenylphosphine,as a common compound, the synthetic route is as follows.

719-80-2, 2-(trimethylsilyl)phenyl trifluoromethanesulfonate (25 mg, 0.083 mmol), Cesium Fluoride (70 mg, 0.461 mmol), Ethoxydiphenylphosphane (78 mg, 0.33 mmol), Acetonitrile (1 ml): Reaction Time: 16 h; Rf: 0.3 (1 :3 EtOAc:Pet Ether); White Solid; 17.5 mg, 75 %; NMR (400 MHz, CDC13, TMS) delta 7.74-7.63 (m, 6H), 7.59-7.51 (m, 3H), 7.50-7.40 (m, 6H); 13C NMR (100 MHz, CDCI3, TMS) delta 132.5 (d, J = 104.0 Hz), 132.1 (d, J = 10.0 Hz), 131.9 (d, J= 2.3 Hz); 128.5 (d, J = 12.4 Hz); 31P NMR (162 MHz, CDC13) delta 29.2; Mass (M + Na)+ 301; Known Compound, Lit. K. Prokop, D. Goldberg, J. Am. Chem. Soc. 2012, 134, 8014.

The synthetic route of 719-80-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH; MHASKE, Santosh Baburao; DHOKALE, Ranjeet Ashokrao; WO2014/24212; (2014); 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.719-80-2,Ethoxydiphenylphosphine,as a common compound, the synthetic route is as follows.

719-80-2, Ethyl diphenylphosphinite (5.7 g, 0.025 mol) and diethyl ether (30 ml) were combined in a 100 ml round bottom flask equipped with a water condensor topped by a glass tee leading to a source of dry nitrogen and a mineral oil bubbler. After cooling the flask in an ice bath, 1 (7.35 g, 0.035 mol) was added. The reaction mixture was then heated at reflux for 18 h. The ether was removed by rotary evaporation at aspirator pressure to yield a clear oil which crystallized on the addition of fresh ether. The crystals were filtered and washed once with a smal portion of ice cold ether to give 5.7 g (69%) 17 (mp = 66-69 C). After recrystallization from benzene and again from Skelly B, the melting point was 68.5-69.5 C. 19F NMR (CDCl3) (ppm): delta = -59.2 (d, 2JPF = 71 Hz); 31P NMR (CDCl3) (ppm): delta = 27.5 (t, 2JPF = 71 Hz); 13C NMR (CDCl3) (ppm): delta = 123.0 (td, 1JCF = 336 Hz, 1JCP = 101 Hz), d = 125.5 (d, 1JCP = 106 Hz, a-carbon of ring), [d = 129.0 (d, JCP = 13.2 Hz) and d = 132.4 (d, JCP = 10.3 Hz) (o- and m-ring carbons)], d = 133.8 (d, 4JCP = 2.9 Hz, p-ring carbon); 1H NMR (CDCl3) (ppm): delta = 7.5-8.2 (multiplet). GC-MS, m/z (relative intensity): 201 (15), 77 (13), 39 (100); molecular ion 330, 332; intensity very low: IR (P=O) 1222 cm-1:Anal. Calcd. for C12H10OPCF2Br: C, 47.13%; H, 3.02%. Found C, 47.18%; H, 3.02%.

719-80-2 Ethoxydiphenylphosphine 69754, achiral-phosphine-ligands compound, is more and more widely used in various.

Reference£º
Article; Flynn, Richard M.; Burton, Donald J.; Journal of Fluorine Chemistry; vol. 132; 10; (2011); p. 815 – 828;,
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.15929-43-8,Bis(4-(trifluoromethyl)phenyl)phosphine oxide,as a common compound, the synthetic route is as follows.

General procedure: To an 10mL oven-dried Schlenk tube under argon atmosphere were added R1R2P(O)H (1.0 mmol) and THF (2.0 mL), stirring the solution until all the solid was totally dissolved, and then MeC(O)Cl (2.0 mmol) was added to the solution and the mixture was stirred at room temperature or 50oC for overnight. After reaction, the excessive MeC(O)Cl, byproduct AcOH and solvent THF were removed under vacuum to afford pure R1R2PCl., 15929-43-8

As the paragraph descriping shows that 15929-43-8 is playing an increasingly important role.

Reference£º
Article; Zhang, Jian-Qiu; Yang, Shangdong; Han, Li-Biao; Tetrahedron Letters; vol. 61; 10; (2020);,
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

13885-09-1, 2-(Diphenylphosphino)biphenyl is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a solution of [Fe2(CO)6{mu-SC6H3(CH3)S}] (0.043 g,0.1 mmol) and ethyl diphenylphosphinite (0.023 g,0.1 mmol) in CH2Cl2(5 mL) was added a solution of Me3NO¡¤2H2O (0.011 g, 0.1 mmol) in MeCN (5 mL). The mixture was stirred at room temperature for 1 h and then the solvent was reduced on a rotary evaporator. The residue was subjected to TLC using CH2Cl2/petroleum ether = 1:4(v/v) as eluent., 13885-09-1

13885-09-1 2-(Diphenylphosphino)biphenyl 12976978, achiral-phosphine-ligands compound, is more and more widely used in various.

Reference£º
Article; Lin, Hui-Min; Mu, Chao; Li, Ao; Liu, Xu-Feng; Li, Yu-Long; Jiang, Zhong-Qing; Wu, Hong-Ke; Transition Metal Chemistry; vol. 44; 5; (2019); p. 491 – 498;,
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

240417-00-9, 2-Diphenylphosphino-2′-(N,N-dimethylamino)biphenyl is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

In a nitrogen-purged glove box, a jar equipped with a stir bar was charged with 2- diphenylphosphino-2′-(N,N-dimethylamino)biphenyl (PhDavePhos, 0.75 g, 1.96 mmol) and toluene (20 mL). Mesitylcopper(I) (0.35 g, 1.92 mmol), dissolved in toluene (10 mL), was then added. After stirring at room temperature for about 5 minutes, pyrazole (0.14 g, 2.05 mmol) was added as a solid. The resulting mixture was at 100C, for 2 hours, with stirring. The solvent was mostly removed in vacuo, and the resulting mixture, in about 2 mL toluene, was precipitated with 40 mL hexanes. The solid was collected by filtration, and rinsed with hexanes. The white solid was dried under vacuum to yield the title complex (0.42 g), as an off white solid.

240417-00-9, The synthetic route of 240417-00-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; DOW GLOBAL TECHNOLOGIES LLC; LAITAR, David S.; CLARK, Thomas P.; RACHFORD, Aaron A.; MUKHOPADHYAY, Sukrit; DE VRIES, Timothy S.; DEVORE, David D.; (31 pag.)WO2016/57441; (2016); 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

19845-69-3, 1,6-Bis(diphenylphosphino)hexane is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1,6-Bis (diphenylphosphino) hexane (2.28 g, 5 mmol),6- (4-bromophenoxy) hexanol (5.0 g, 20 mmol),Ethylene glycol 10mL and nickel bromide 50mg added to a 50mL three-necked flask and purged with nitrogen,The temperature was raised to 180 C.After 4h magnetic stirring reaction system,After cooling, all the reactants were dissolved in 20 mL of dichloromethane,The organic layer was washed three times with deionized water.After the solution was dried over anhydrous Na2SO4 filtered,The organic phase was washed with a large amount of ether and a large amount of tetrahydrofuran respectively,Compound B2 is then obtained.

19845-69-3, As the paragraph descriping shows that 19845-69-3 is playing an increasingly important role.

Reference£º
Patent; Beijing University of Chemical Technology; Wang Zhongming; Yang Qian; Han Kefei; Zhu Hong; (9 pag.)CN107347909; (2017); 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

29949-84-6, Tris(3-methoxyphenyl)phosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A large amount of microcrystalline the preparation of the sample: weighing 0.3mmol of cuprous iodide is dissolved in 10 ml acetonitrile to obtain solution A, weighing 0.3mmol m – anisyl3 P ligand dissolved in 10 ml dichloromethane to obtain solution B, the solution A and solution B mixed, and stirring to make fully undergo coordination reaction, and finally the resulting colorless solution is filtered, and steaming and remove all solvent, vacuum drying, to obtain the colorless crystal powder is the product, yield 96% (to Cu meter)., 29949-84-6

29949-84-6 Tris(3-methoxyphenyl)phosphine 141534, achiral-phosphine-ligands compound, is more and more widely used in various.

Reference£º
Patent; China Jiliang University; Chai, Wenxiang; Tian, Yuan; Song, Li; Tao, Xiaoyong; Huang, Jiayan; Zhang, Ming; Chen, Haichao; Chen, Zhi; (10 pag.)CN104893715; (2017); 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

719-80-2, Ethoxydiphenylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

719-80-2, To a stirred solution of CsF (64 mg, 0.42 mmol) in anhydrous acetonitrile was consecutively added 2-methoxy (o-trimethyl silyl) phenyl triflate (25 mg, 0.077 mmol) and ethoxydiphenylphosphine (61 mg, 0.31 mmol). Reaction mixture was allowed to stir at room temperature (30 C.) for 20 hrs. The reaction mixture was concentrated and directly loaded on silica gel column and purified by using solvent gradient of Pet. Ether: Ethyl Acetate (1:1) to yield a white sticky solid phosphine oxide (16 mg, 68%). Reaction Time: 20 h; Rf: 0.3 (1:1 EtOAc:Pet Ether); Thick oil; 16.0 mg, 68%; 1H NMR (400 MHz, CDCl3, TMS) delta 7.71-7.63 (m, 4H), 7.59-7.52 (m, 2H), 7.50-7.43 (m, 4H), 7.40-7.29 (m, 2H), 7.18-7.05 (m, 2H), 3.80 (s, 3H); 13C NMR (100 MHz, CDCl3, TMS) delta 159.6 (d, J=15.4 Hz), 133.8 (d, J=103.3 Hz), 132.4 (d, J=104.0 Hz), 132.1 (d, J=10.0 Hz), 131.9 (d, J=3.1 Hz), 129.6 (d, J=14.6 Hz), 128.5 (d, J=12.3 Hz), 124.4 (d, J=10.0 Hz), 118.2 (d, J=3.1 Hz), 116.7 (d, J=10.8 Hz), 55.4; 31P NMR (162 MHz, CDCl3) delta 29.5; HRMS-ESI (m/z) calcd (C19H17O2P+H)+: 309.1039 found: 309.1034; Known compound, Lit. X. Zhang, H. Liu, X. Hu, G. Tang, J. Zhu, Y. Zhao, Org. Lett. 2011, 13, 3478

As the paragraph descriping shows that 719-80-2 is playing an increasingly important role.

Reference£º
Patent; Mhaske, Santosh Baburao; Dhokale, Ranjeet Ashokrao; US2015/210725; (2015); 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: Platinum complexes were synthetized by dissolving K2PtCl4 (8.3 mg, 0.02 mmol) in degassed deuterated water (2 mL). Three equiv. of the corresponding ligand (0.06 mmol) were added to the solution, which was then stirred for 15 min at room temperature under nitrogen. Studies in the presenceof RAME-beta-CD were conducted as follows: the required amount of cyclodextrin was introduced into500 L of the above solution. After 15 min of stirring, the solution was transferred into a NMR tube and analysed.

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

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

657408-07-6, Dicyclohexyl(2′,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,657408-07-6

Step 1. The 500 mL round-bottom flask, equipped with magnetic stirrer and reflux condenser was charged with 2-(methylthio)phenylboronic acid (9.48 g, 56 mmol), 3-amino-2-bromopyridine (7.15 g, 57 mmol), 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (S-Phos, 0.92 g, 4 mol %), Pd2(dba)3 (1.02 g, 2 mol %), potassium phosphate hydrate (39 g, 3 equivalents), 100 mL of toluene. The flask was filled with nitrogen and heated to reflux under nitrogen atmosphere for 24 hours. Then the reaction was cooled down to room temperature, diluted with 500 ml of water and extracted with ethyl acetate (5*40 mL). Organic fractions were combined, dried over sodium sulfate, filtered and evaporated. The residue was subjected to column chromatography on silica gel with eluent hexane/ethyl acetate gradient mixture, providing 2-(2-(methylthio)phenyl)pyridin-3-amine as yellow crystals (9.5 g). NMR confirmed the structure.

As the paragraph descriping shows that 657408-07-6 is playing an increasingly important role.

Reference£º
Patent; Universal Display Corporation; US2009/134784; (2009); 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