Chiral phosphine ligands

1608-26-0, N,N,N’,N’,N”,N”-Hexamethylphosphinetriamine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

In an eggplant-shaped two-neck flask equipped with a reflux condenser, a dropping funnel and a magnetic stirrer, 37.4 g (178 mmol) of diethylsulfate were added dropwise to 24.2 g (149 mmol) of hexamethylphosphorous triamide at room temperature in a nitrogen gas atmosphere. After 3-day stirring at room temperature, a white solid salt was obtained. The salt was washed sufficiently with ether and vacuum-dried at 50 C. for 5 hours to obtain tri(dimethylamino)butylphosphonium butylsulfate with 94% yield.The resulting compound was identified with a nuclear magnetic resonance spectrometer (BRUKER Ultra Shield 300 NMR Spectrometer, supplied by BRUKER Corp.). The spectrum data are shown below.1H-NMR (300 MHz, solvent: acetone-d6, reference material: tetramethylsilane) delta 3.83 (t, 2H) 2.85 (d, 18H) 2.73-2.63 (m, 2H) 1.70-1.33 (m, 8H) 0.97 (t, 3H) 0.90 (t, 3H)The structural formula is shown below (a dashed line in the formula represents a conjugated structure).

1608-26-0, 1608-26-0 N,N,N’,N’,N”,N”-Hexamethylphosphinetriamine 15355, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Patent; Kanto Denka Kogyo Co., Ltd.; US2009/23954; (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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

In a nitrogen atmosphere, in a glove box, Add 0.01 mmol of nickel chloride and 0.52 mmol of bis-naphthylphosphine, respectively. 1.5 equivalents of t-BuOK (potassium tert-butoxide), sequentially added to the Schlenk reaction tube, Subsequently, 0.4 mmol of phenylpropanonitrile compound was added,Vacuuming and backfilling with nitrogen; under a nitrogen atmosphere, The solvent was added to 3 ml of 1,4-dioxane, and the reaction was continued at 120 C for 16 h. After the reaction is completed, it is cooled to room temperature and separated by column chromatography. That is the target product: Phenylethylnaphthylphosphine oxide with a yield of 99%., 13440-07-8

The synthetic route of 13440-07-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Hunan University; Zhang Jishu; Qi Tafamingrenqingqiubugongkaixingming; (13 pag.)CN109438512; (2019); 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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13440-07-8,Di(naphthalen-1-yl)phosphine oxide,as a common compound, the synthetic route is as follows.

Add 4-bromophenylacetylene (0.088 g, 0.5 mmol) to the reaction flask.Dinaphthylphosphorus (0.30 g, 1 mmol),CuCl (0.01 g, 0.1 mmol), tert-butyl peroxybenzoate(0.15 g, 1.5 mmol) and N-methylpyrrolidone(2 mL), 70oC reaction;TLC tracks the reaction until it is completely over;The crude product obtained after the completion of the reaction was separated by column chromatography (ethyl acetate: petroleum ether = 1:1) to give the desired product.(Yield 81%)., 13440-07-8

The synthetic route of 13440-07-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Nantong Textile Silk Industrial Technology Institute; Soochow University (Suzhou); Zou Jianping; Tao Zekun; Lv Shuaishuai; Li Chengkun; Li Jianan; (12 pag.)CN109096336; (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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.6224-63-1,Tri-m-tolylphosphine,as a common compound, the synthetic route is as follows.

General procedure: 4.3.23 methyl 2-phenyl-5-(3-methylphenyl)thiazole-4-carboxylate (4b) A suspension of Pd(OAc)2 (10 mol percent), Ar3P (0.33 mmol or 0.75 mmol), AgOAc (3.0 mmol), TFA (1.0 mmol) and azole-4-carboxylates (0.5 mmol) in NMP (2 mL) was introduced to a Schlenk tube. After stirring at 120 C under argon for 24 h (reactions with 0.33 mmol of Ph3P), or 48 h (reactions with 0.75 mmol of Ph3P), the reaction mixture was diluted with ethyl acetate, and then filtered through a pad of Celite. Volatiles were removed in vacuo to give the crude products, which was purified by flash column chromatography on silica gel to afford pure arylated products Yield 125 mg (81percent). 1H NMR (300 MHz, CDCl3) delta 2.41 (s, 3H), 3.86 (s, 3H), 7.23-7.34 (m, 4H), 7.44-7.46 (m, 3H), 7.96-7.99 (m, 2H) ppm; 13C NMR (75 MHz, CDCl3) delta 165.0, 161.7, 145.6, 139.8, 137.0, 131.8, 129.6, 129.5, 129.2, 129.1, 128.0, 127.2, 126.0, 125.8, 51.3, 20.4 ppm., 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; Li, Ziyuan; Zhou, Haipin; Xu, Jinyi; Wu, Xiaoming; Yao, Hequan; Tetrahedron; vol. 69; 15; (2013); p. 3281 – 3286;,
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, Benzyldiphenylphosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

7650-91-1, General procedure: The following procedure was used in place of the general procedure for this reaction: SiO2 (0.0561 g) and di-(mu-acetato)bis-{2-[(N,N-dimethylamino)methyl]phenyl-C,N}dipalladium(II) 1a (0.0222 g, 0.0370 mmol) were mixed first in a small round-bottomed flask. A stir bar was inserted and the flask, septum, and stirring spatula were all transferred to a glove box with an atmosphere of N2. Benzyldiphenylphosphine 7 (0.020 g, 0.072 mmol) was then added to the flask and thoroughly mixed with the spatula. The reaction was allowed to stir at room temperature in the glove box. The flask was capped with the septum before being removed from the glove box and put in a preheated oil bath (100 C) for 2 h. No CaCl2-filled syringe was used in this reaction. The reaction mixture was filtered into a flask with LiCl as described in the general procedure and purified using preparative TLC in CH2Cl2.

The synthetic route of 7650-91-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Lamb, Jessica R.; Stepanova, Valeria A.; Smoliakova, Irina P.; Polyhedron; vol. 53; (2013); p. 202 – 207;,
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.146960-90-9,1,1′-Bis(dicyclohexylphosphino)ferrocene,as a common compound, the synthetic route is as follows.

Example 21 Preparation of[DCyPFc RuCI2AMPY] Into a 200 mL stirred glass reactor are introduced 3.2 g of RuCI2(PPh3)3and 2.32 g of DCyPFc as solids followed by 100 mL of nitrogen saturated MEK. Stirring is started immediately and the slurry is stirred for 28 hours.3P{ H} NMR analysis of a NMR sample obtained by diluting a sample from the reaction mixture with C6D6shows that all DCyPFc has reacted and that the only free phosphine is PPh3released from RuCI2(PPh3)3.To the intermediate slurried in MEK is added 0.42 g of AMPY after dilution in 10 ml of MEK over the period of 10 minutes. The reaction mixture is stirred for 60 hours. The obtained thick slurry of a tan brown product is suction filtered using a Buechner funnel and filter paper until a wet cake of product is obtained. Washing with MEK is continued until the MEK filtrate is uncoloured. The yellow product is dried at 10 mbar, 30C for 48 hours. A sample was slurried in IPA and again filtered.The identity of the solid is confirmed by a combination of H and3P{ H} NMR analysis. By3P{ H} NMR analysis 2 isomers with delta = 51 ppm (major broad resonance) and delta = 48 ppm (minor broad resonance) are visible. The AMPY resonances for the major complex are delta = 9.94 (d), 7.73 (t), 7.40 (t), 7.35 (t) (all integration as 0.75 H) 5.07 (s, 1 .5 H), the AMPY resonances for the minor complex are delta = 9.80 (d), 8.06 (t), 7.93 (t), 7.64 (t) (all integration as 0.25 H), 5.01 (s, 0.5 H). The 2 x 4 CH resonances of ferrocene are at delta = 4.23 (m), 4.08 (m). The remaining resonances of the cyclohexyl – resonances (44) are a broad series of multiplets at delta = 2.2 – 0.94 ppm., 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; FACCHETTI, Sarah; NEDDEN, Hans; WO2015/79207; (2015); 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

17261-28-8, 2-(Diphenylphosphino)benzoic acid is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of acetato complex 3 (26.7 mg, 0.04 mmol) in CH2Cl2 (5 mL), a solution of 2-(diphenylphosphino)benzoic acid (24.6 mg, 0.08 mmol) in CH2Cl2 (5 mL) was added. The reaction mixture was stirred at ambient temperature for 5 h. The resulting solution was concentrated to half of the initial volume, and n-hexane(20 mL) was added. The precipitate was collected and dried in vacuo affording the product as a white powder (14.7 mg, 0.03 mmol, 75percent). 1H NMR (600 MHz, CDCl3):d 9.14 (s, 1 H, Hh), 8.30?8.28 (m, 1 H, Dpb?H), 7.71 (t, 1H, Hf, 3JH,H = 6 Hz), 7.48?7.26 (m, 12 H, He, Hg, Dpb?H), 6.95 (d, 1 H, Hd, 3JH,H = 6 Hz), 6.85?6.80 (m, 2 H, Ha,Dpb?H), 6.72 (t, 1 H, Hc, 3JH,H = 6 Hz), 6.36 (t, 1 H, Hb,3JH,H = 6 Hz), 4.28 (br s, 2 H, CH2). 13C NMR (150 MHz,CDCl3): d 170.5 (d, CO, 3JC,P = 4.2 Hz), 158.7 (Ck), 151.3(Ch), 148.2 (d, Cj, 2JC,P = 1.5 Hz), 143.7 (d, Dpb?C,JC,P = 13 Hz), 140.9 (d, Ca, 3JC,P = 12 Hz), 139.4 (Cf),138.8 (Ci), 135.3 (d, Dpb?C, JC,P = 13 Hz), 133.8 (d,Dpb?C, JC,P = 9 Hz), 132.1 (d, Dpb?C, JC,P = 4.5 Hz),131.4 (d, Dpb?C, JC,P = 1.5 Hz), 130.1 (d, Dpb?C,JC,P = 9 Hz), 129.2, 128.5, 128.2 (Dpb?C), 127.1 (Cd),126.0 (d, Cb, 4JC,P = 4.5 Hz), 124.3 (Cc), 124.1 (d, Ce,4JC,P = 3 Hz), 123.0 (d, Cg, 4JC,P = 3 Hz), 49.9 (CH2).31P NMR (100 MHz, CDCl3): d 33.2 (s, PDbp). ESI?MS(positive) m/z: 580 [M ? H]?. mmax/cm-1 (KBr): 1609(CO). Anal. Calcd. for C31H25NO2PPd: C, 64.20; H, 4.17;N, 2.42percent; Found: C, 64.11; H, 4.546; N, 2.14percent., 17261-28-8

17261-28-8 2-(Diphenylphosphino)benzoic acid 87021, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Zhang, Xin; Wang, Haiying; Yuan, Jiali; Guo, Shuai; Transition Metal Chemistry; vol. 42; 8; (2017); p. 727 – 738;,
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

24171-89-9, Tri(thiophen-2-yl)phosphine 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-SCH2CH2S)] (0.037 g, 0.1 mmol) and tricyclohexylphosphine (0.028 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 = 1:3 (v/v) as eluent. From the main red band, 0.042 g (68%) of complex 2 was obtained as a red solid., 24171-89-9

The synthetic route of 24171-89-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Yan, Lin; Li, Ao; Xiao, Qi-Min; Liu, Xu-Feng; Li, Yu-Long; Jiang, Zhong-Qing; Wu, Hong-Ke; Transition Metal Chemistry; vol. 44; 5; (2019); p. 483 – 489;,
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.224311-51-7,2-(Di-tert-Butylphosphino)biphenyl,as a common compound, the synthetic route is as follows.

50 ml entgastes, wasserfreies Methanol wurde auf Rueckflusstemperatur erhitzt, 2,36 g (7,9 mmol) 2-(Di-tert.-butylphosphino)biphenyl wurde langsam dem Methanol zugegeben, bis die Phosphin-Verbindung vollstaendig geloest war. Anschliessend wurde 0,59 g (2,6 mmol) Kupfer(II)-bromid portionsweise der Loesung zugegeben. Nach Zugabe des Kupferbromids wurde die Loesung noch weitere 15 min lang auf Rueckflusstemperatur erhitzt und danach die Loesung abgekuehlt. Nach Abkuehlen der Loesung fiel ein Feststoff aus, der abfiltriert wurde und mit wenig Ethanol und Diethylether gewaschen und anschliessend getrocknet wurde. Man erhielt 0,93 g (1,1 mmol) der oben genannten Verbindung. Die Ausbeute betrug 80 percent d. Th.

224311-51-7, 224311-51-7 2-(Di-tert-Butylphosphino)biphenyl 2734215, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Patent; Bayer Aktiengesellschaft; EP1437340; (2004); 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

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

Under argon protection, bis(2-diphenylphosphinophenyl)ether (Compound 2) 538 g, toluene solvent was added to the reaction vessel.700 mL, 8.8 mL of trifluoromethanesulfonic acid, 150 mL of acetone, the reaction system was heated to 200 C, and after 16 h of reaction, it was reduced toAt room temperature, after extraction, drying and recrystallization, the desired product 4,5-bisdiphenylphosphino-9,9-dimethyloxaxan (Compound 1) is obtained.549 g (yield 95%)., 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
Patent; Henan Academy Of Sciences Chemical Institute Co., Ltd.; Liu Tingting; Chen Hui; Zhou Duo; Zhao Shunwei; Li Yunfei; Yang Zhenqiang; Cui Fumin; Duan Zheng; Yang Ruina; (4 pag.)CN109942631; (2019); 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