Tag: M.W:200-300

50777-76-9, 2-(Diphenylphosphino)benzaldehyde is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

50777-76-9, General procedure: To a mixture of 2-(diphenylphosphino)benzaldehyde(500 mg, 1.72 mmol) and the appropriate amine(1.81 mmol) was added formic acid (1 drop) in MeOH(5 mL). The reaction was allowed to proceed at RT for18 h, at which point the iminophosphine pro-ligand was collected by suction filtration as a pale yellow precipitate. Spectroscopic NMR data were collected in CDCl3 as the pro-ligands decompose in wet DMSO-d6. The spectroscopically pure pro-ligands were used as prepared to make the corresponding platinum(II) complexes. (E)-N-(2-(Diphenylphosphino)benzylidene)-2-methoxyaniline(2) Yield: 449 mg (66percent); m.p.: 108?109 C.

As the paragraph descriping shows that 50777-76-9 is playing an increasingly important role.

Reference£º
Article; St-Coeur, Patrick-Denis; Adams, Meghan E.; Kenny, Bryanna J.; Stack, Darcie L.; Vogels, Christopher M.; Masuda, Jason D.; Morin, Pier Jr.; Westcott, Stephen A.; Transition Metal Chemistry; vol. 42; 8; (2017); p. 693 – 701;,
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 20mL scintillation vial was charged with 1equiv of NCr(NiPr2)2I (1) [42], 110 acetonitrile (3mL), and a Teflon-coated stir bar. This mixture was stirred at room temperature giving a dark red-orange solution. Separately, a solution of 111 AgSbF6 (1equiv) was prepared in acetonitrile (1-2mL). The AgSbF6 solution was then added dropwise to the stirred solution of 1. Upon addition, copious amounts of off-white precipitate formed, and the solution became dark brown. The resultant mixture was stirred for 20min after complete addition of the Ag solution. The mixture was then filtered over Celite to remove the precipitate. The dark brown solution of 2 collected was once again stirred at room temperature and a solution of PR3 (1-2equiv) in acetonitrile (1-2mL) was added. (1equiv of the phosphine was used if it was a solid or high-boiling liquid phosphine that is difficult to remove by recrystallization. 2equiv of phosphine were used if PR3 is a low-boiling liquid easily removed in vacuo.) Upon addition of PR3, the solution quickly became yellow-orange. The reaction solution was stirred for 1h at room temperature. The volatiles were then removed in vacuo to give a dark residue. This residue was rinsed with small aliquots of cold Et2O (3¡Á1mL) to remove any unreacted 1. The residue was once more dried in vacuo. The residue was dissolved in a minimal amount of CH2Cl2 or CHCl3 and layered with Et2O or pentane. The layered solution was then stored overnight at -35C to yield yellow-orange X-ray quality crystals.

6372-42-5 Cyclohexyldiphenylphosphine 80756, achiral-phosphine-ligands compound, is more and more widely used in various.

Reference£º
Article; Aldrich, Kelly E.; Billow, Brennan S.; Staples, Richard J.; Odom, Aaron L.; Polyhedron; vol. 159; (2019); p. 284 – 297;,
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

A toluene (50 mL) solution of Ru3(CO)12 (200 mg, 0.31 mmol) and PTh3 (88 mg, 0.31 mmol) was refluxed for 10 min during which time the color changed from yellow to orange. The solvent was removed under reduced pressure and the residue was subjected to TLC on silica gel. Elution with hexane/CH2Cl2 (9:1, v/v) gave several bands. The first band gave 1 (15 mg, 6%) while the second band gave Ru3(CO)9{mu-Th2P(C4H2S)}(mu-H) (4) (65 mg, 25%) as orange crystals after recrystallization from hexane/CH2Cl2 at 4 C. Anal. Calcd for C21H9O9P1Ru3S3: C, 30.18; H, 1.09%. Found: C, 30.35; H, 1.12%. IR (nuCO, CH2Cl2): 2085 s, 2060 s, 2034 s, 2022 s, 2014 m, 1998 w cm-1. 1H NMR (CDCl3): delta 7.61 (m, 1H), 7.43 (m, 1H), 7.72 (m, 1H), 7.32 (m, 2H), 7.23 (m, 2H), 7.16 (m, 2H), -17.70 (d, J = 20.5 Hz, 1H). 31P{1H} NMR (CDCl3): delta 17.82 (s, 1P). FAB MS: m/z 837 (M+). The third band afforded Ru3(CO)8{mu-Th2P(C4H2S)(PTh3)(mu-H) (5) (26 mg, 8%) as pink crystals from hexane/CH2Cl2 at 4 C. Anal. Calcd for C32H18O8P2Ru3S6: C, 35.32; H, 1.67%. Found: C, 35.50; H, 1.70%. IR (nuCO, CH2Cl2): 2072 s, 2033 s, 2020 s, 2003 w, 1995 w, 1971 m, 1963 w cm-1. 1H NMR (CDCl3): delta 7.93 (m, 1H), 7.72 (m, 1H), 7.53 (m, 3H), 7.34 (m, 1H), 7.22 (m, 1H), 7.16 (d, J = 5.0 Hz, 1H), 7.00 (m, 3H), 6.76 (m, 3H), 6.72 (d, J = 5.0 Hz, 1H), 6.43 (m, 1H), 6.34 (m, 1H), -17.03 (dd, J = 17.2, 8.8 Hz, 1H). 31P{1H} NMR (CDCl3): delta 16.20 (d, J = 32.2 Hz, 1P), 6.50 (d, J = 32.2 Hz, 1P). FAB MS: m/z 1089 (M+)., 24171-89-9

24171-89-9 Tri(thiophen-2-yl)phosphine 90384, achiral-phosphine-ligands compound, is more and more widely used in various.

Reference£º
Article; Uddin, Md Miaz; Begum, Noorjahan; Ghosh, Shishir; Sarker, Jagodish C.; Tocher, Derek A.; Hogarth, Graeme; Richmond, Michael G.; Nordlander, Ebbe; Kabir, Shariff E.; Journal of Organometallic Chemistry; vol. 812; (2016); p. 197 – 206;,
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

5931-53-3,5931-53-3, Diphenyl(o-tolyl)phosphine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

This procedure is in accordance with Csar et. al. [16] . Addition of nBuLi in hexanes (10.4 mmol, 1.60 M) to a 100-mL flask charged with CH3C6H4-o-PPh2 (2.40 g, 8.69 mmol), 30 mL ether, 3 mL pentane and 1.60 mL TMEDA resulted in precipitation of orange microcrystals, and the mixture was stirred at 23 C for 18 h. Filtration of the precipitate yielded the title compound as orange crystals (2.757 g, 80%). 1H NMR (C6D6): delta 1.66 (4H, s), 1.83 (12H, s), 6.23 (1H, t, 7 Hz), 6.77 (1H, t, 7 Hz), 7.03 (1H, m), 7.11 (3H, m), 7.18 (4H, m), 7.60 (4H, t, 7 Hz). 13C NMR (C6D6): delta 45.10, 56.26, 107.84, 120.28, 128.51, 128.55, 128.63, 129.36, 133.34, 134.66, 134.86, 137.25, 168.69. 31P NMR (C6D6): delta -15.52 (s).

As the paragraph descriping shows that 5931-53-3 is playing an increasingly important role.

Reference£º
Article; Jacobs, Brian P.; Wolczanski, Peter T.; MacMillan, Samantha N.; Journal of Organometallic Chemistry; vol. 847; (2017); p. 132 – 139;,
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