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: To a mixture of (S)-3,3′-Dibenzyl-5,5′,6,6′-tetramethyl-1,1′-biphenyl-2,2′-diol24 (0.42 g, 1.00 mmol) in toluene (5 mL) was added hexamethylphosphorous triamide (248 mg, 1.50 mmol) under nitrogen. The resulting mixture was stirred at 80 C for 17 h. The solvent was evaporated under reduced pressure to afford a gel-like product, which was further purified by column chromatography on silica gel (pretreated with 1% NEt3 in hexanes) using hexanes/EtOAc (19/1) as the eluent to give (R)-MPN-Lf (0.32 g, 65%) as a white solid., 1608-26-0

As the paragraph descriping shows that 1608-26-0 is playing an increasingly important role.

Reference£º
Article; Chien, Chih-Wei; Shi, Ce; Lin, Chi-Feng; Ojima, Iwao; Tetrahedron; vol. 67; 35; (2011); p. 6513 – 6523;,
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.17261-28-8,2-(Diphenylphosphino)benzoic acid,as a common compound, the synthetic route is as follows.

Triphenylphosphonium bromide 2b (16.81 g, 49.0 mmol), and xylene (50 mL) were added into flask A (250 mL) with an inlet connected to a nitrogen balloon. To flask B (500 mL, three-necked) with an inlet connected to the flask A, (2-diphenylphosphino)benzoic acid 2e (10.00 g, 32.6 mmol), and MTBE (200 mL) were added. The flask A was heated in an oil-bath at 130 ¡ãC, and the generated HBr1 was introduced through a glass tube into the flask B under stirring by purging nitrogen. After solid 2b was completely disappeared, the reaction mixture in the flask B was filtered,and the white solids were washed with MTBE (80 mL ¡Á 2) and hexane (60 mL ¡Á 3). The solids were collected and dried in vacuo to afford (2-carboxyphenyl)diphenylphosphonium bromide 2d (11.21 g) in 89percent yield., 17261-28-8

As the paragraph descriping shows that 17261-28-8 is playing an increasingly important role.

Reference£º
Article; Huang, Wenhua; Xu, Ning; Synthetic Communications; vol. 47; 22; (2017); p. 2133 – 2138;,
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, l-(trimethylsilyl)naphthalen-2-yl trifluoromethanesulfonate (25 mg, 0.071 mmol), Cesium Fluoride (60 mg, 0.395 mmol), Ethoxydiphenylphosphane (68 mg, 0.287 mmol), Acetonitrile (1 ml): Reaction Time: 16 h; Rf. 0.4 (1 :3 EtOAc:Pet Ether); Thick oil; 19.5 mg, 83 %; NMR (400 MHz, CDCI3, TMS) delta 8.28 ( d, J = 13.8 Hz, 1H), 7.95-7.84 (m, 3H), 7.79-7.40 (m, 13 H); 13C NMR (100 MHz, CDC13, TMS) delta 134.7 (d, J= 2.3 Hz), 134.0 (d, J= 9.3 Hz), 133.0, 132.3, 132.1 (d, J =10.0 Hz), 132.0 (d, J = 1.5 Hz), 131.3 (d, 7 = 243.5 Hz), 128.9, 128.5 (d, J = 12.3 Hz), 128.4, 128.2, 127.4 (d, J = 87.9 Hz), 126.8 (d, J= 10.8 Hz); 3IP NMR (162 MHz, CDC13) delta 29.3; HRMS-ESI (m/z) calcd (C22H17OP + H)+ : 329.1090 found: 329.1086; Known compound, Lit. Y.-L. Zhao, G.-J. Wu, Y. Li, L.-X. Gao, F.-S. Han, Chem. Eur. J. 2012, 18, 9622.

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

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.6372-42-5,Cyclohexyldiphenylphosphine,as a common compound, the synthetic route is as follows.,6372-42-5

An acetonitrile solution (5 mL) of Me3NO¡¤2H2O (0.011 g, 0.10 mmol) was slowly added to a dichloromethane solution (5 mL) of cyclohexyldiphenylphosphine (0.027 g, 0.10 mmol) and compound 1 (0.040 g, 0.10 mmol). The resulting mixture was immediately turned from red to dark brown. After 1 h, the solvent was concentrated on an evaporator. The brown residue was purified by TLC (petroleum ether: CH2Cl2 = 4: 1) to give compound 2 (0.046 g, yield 72%) from the main red band. IR (KBr disc, cm-1): nuC?O 2044 (vs), 1983 (vs), 1973 (vs), 1925 (m). 1H NMR (500 MHz, CDCl3): 7.71 (s, 2H, PhH), 7.62 (s, 2H, PhH), 7.47, 7.45 (2s, 6H, PhH), 2.31 (s, 2H, CyH), 2.18 (s, 2H, CyH), 1.84 (s, 2H, SCH2), 1.70 (s, 1H, SCH), 1.39 (s, 2H, CyH), 1.28 (m, 2H, CyH), 1.14-1.03 (m, 3H, CyH), 0.79 (s, 3H, CH3) ppm. 31P{1H} NMR (200 MHz, CDCl3, 85% H3PO4): 65.14 (s) ppm. 13C{1H} NMR (125 MHz, CDCl3): 216.18 (d, JP-C = 9 Hz, PFeCO), 215.94 (d, JP-C = 8.5 Hz, PFeCO), 210.45 (FeCO), 135.29 (d, JP-C = 33.9Hz, i-PhC), 133.40 (d, JP-C = 9.6Hz, o-PhC), 132.86 (d, JP-C = 10 Hz, o-PhC), 130.08 (s, p-PhC), 128.20 (t, JP-C = 8.9 Hz, m-PhC), 54.32 (SCH), 41.12 (SCH2), 40.95, 40.85, 28.90, 27.43, 27.35, 25.99 (CyC), 29.58 (CH2CH3), 14.05 (CH3) ppm. Anal. Calcd. for C27H29Fe2O5PS2: C, 50.65; H, 4.57. Found:C, 50.79; H, 4.34%.

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

Reference£º
Article; Jiang, Zhong-Qing; Li, Yu-Long; Liu, Xing-Hai; Liu, Xu-Feng; Yan, Lin; Yang, Jun; Journal of Sulfur Chemistry; (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

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

General procedure: To a mixture of (S)-3,3′-Dibenzyl-5,5′,6,6′-tetramethyl-1,1′-biphenyl-2,2′-diol24 (0.42 g, 1.00 mmol) in toluene (5 mL) was added hexamethylphosphorous triamide (248 mg, 1.50 mmol) under nitrogen. The resulting mixture was stirred at 80 C for 17 h. The solvent was evaporated under reduced pressure to afford a gel-like product, which was further purified by column chromatography on silica gel (pretreated with 1% NEt3 in hexanes) using hexanes/EtOAc (19/1) as the eluent to give (R)-MPN-Lf (0.32 g, 65%) as a white solid., 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; Chien, Chih-Wei; Shi, Ce; Lin, Chi-Feng; Ojima, Iwao; Tetrahedron; vol. 67; 35; (2011); p. 6513 – 6523;,
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.

To a solution of P(3-Me-C6H4)3 (1.98 g, 6.50 mmol) in toluene (20 mL), a solution of 3c (1.51gm, 5.90 mmol) in toluene (10 mL) was added via cannula. After 4 hours, the clear yellow solution was evaporated to afford a yellow residue. The yellow residue was washed with a mixture of 1:3 toluene-hexanes (4 x 12 mL), yielding a yellow oil. The yellow oil was washed with ether (10 mL) to give white solid 8 (1.8 g, 60percent). 1H NMR (CDCl3): delta 7.71 (s, 1H, 6-CH of -C6H3SO3-), 7.68 (s, 3H, 2-CH of (3-CH3-C6H4)3P=NH-), 7.55 (m, 3H, 5-CH of (3-CH3-C6H4)3P=NH-), 7.32 (s, 3H, 4-CH and 6-CH of (3-CH3-C6H4)3P=NH-), 6.85 (d, J = 8.4, 1H, 4-CH of -C6H3SO3-), 6.39 (d, J = 8.4, 1H, 3-CH of -C6H3SO3-), 3.90 (t, 2H, CH of CH2CH2CH3), 2.35 (s, 9H, 3-CH3 of (3-CH3-C6H4)3P=NH-), 2.19 (s, 3H, J = 6.8, 5-CH3 of – CH3C6H3SO3-), 1.52 (m, 2H, CH of CH2CH2CH3), 0.78 (t, 3H, J = 7.4, CH of CH2CH2CH3). 31P NMR (CDCl3): delta 2.7. 13C NMR (CDCl3): delta 148.9, 138.4 (d, JPC = 11.6), 134.6, 133.1 (d, JPC = 9.3), 132.5 (d, JPC = 3.1), 131.5 (d, JPC = 2.3), 130.5 (d, JPC = 10.0), 129.8 (d, JPC = 2.3), 128.4 (d, JPC = 13.2), 126.5 (d, JPC = 24), 124.6, 122.5 (d, JPC = 10.8), 71.1, 22.4, 21.5, 20.2, 10.1. Anal. Calcd for C31H34NO3PS: C, 70.03; H, 6.45; N, 2.63. Found: C, 69.89; H, 6.32; N, 2.52., 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; Burns, Christopher T.; Shang, Suisheng; Thapa, Rajesh; Mashuta, Mark S.; Tetrahedron Letters; vol. 53; 36; (2012); p. 4832 – 4835;,
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, Pt(tht)2Cl2 (synthesized according to a method disclosed in J. Chem. Soc., Dalton Trans. 1980, 888-894; 100 mg, 1 eq, ?tht? represents tetrahydrothiophene), benzyldiphenylphosphine purchased from Alfa Aesar (68 mg, 1.1 eq), and sodium acetate (94 mg, 5 eq) were added in a 50 mL round-bottomed flask, and degassed xylene (purchased from ECHOChemical; Product no: XA2101-000000-72EC; 6 mL) was then added therein with mixing to obtain a mixture, followed by heating to 100 C. and reacting for 12 hours. The mixture was then cooled to room temperature, and a precursor solution (PS1) of a phosphorescent four-coordinated platinum (II) complex was obtained. 4-(tert-butyl)-2-(3-(tert-butyl)-1H-pyrazol-5-yl)pyridine (59 mg, 1 eq) was added into the PS1 obtained from Synthesis Example 1 to obtain a mixture, and the mixture was heated to 100 C. and reacted for 6 hours, followed by cooling to room temperature and removing the solvent. Silica-gel column chromatography was conducted to purify the mixture using an eluent of dichloromethane and n-hexane (dichloromethane:hexane=1:1 (by volume)). Recrystallization was then conducted using dichloromethane/n-hexane so as to obtain a light yellow crystalline product, referred to as complex E2 (59.9% yield; 98.9 mg). The reaction scheme for producing the complex E2 is represented as follows: The spectrum analysis for the complex E2 is: 1H NMR (400 MHz, CD2Cl2, 298 K) delta 9.05 (d, J=7.6 Hz, 1H), 7.86-7.91 (m, 3H), 7.62 (d, J=2.0 Hz, 1H), 7.46-7.54 (m, 5H), 7.26-7.31 (m, 2H), 7.17 (d, J=7.0 Hz, 1H), 6.98-7.11 (m, 4H), 6.60 (s, 1H), 3.80 (d, J=11.4 Hz, 2H), 1.44 (s, 9H), 1.28 (s, 9H) ppm, 31P NMR (200 MHz, CD2Cl2, 298 K) delta 36.68 ppm, FAB-MS m/z 727.7 [M+1]+

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

Reference£º
Patent; National Tsing Hua University; Chi, Yun; Huang, Li-Min; US8722885; (2014); B1;,
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

13440-07-8, Di(naphthalen-1-yl)phosphine oxide is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Into a round bottom flask was added (dichloroiodo)benzene (2, 0.15 mmol, 1.02 equiv), DCM (0.25 mL, 0.6M), and to this was added excess ethanol (0.1 mL, 10 equiv), followed by the secondary phosphine oxide (0.15 mmol, 1.0 equiv,). The reaction mixture was stirred at room temperature for the indicated length of time, then concentrated in vacuo and purified by column chromatography., 13440-07-8

13440-07-8 Di(naphthalen-1-yl)phosphine oxide 23110917, achiral-phosphine-ligands compound, is more and more widely used in various fields.

Reference£º
Article; Eljo, Jasmin; Murphy, Graham K.; Tetrahedron Letters; vol. 59; 31; (2018); p. 2965 – 2969;,
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.7650-91-1,Benzyldiphenylphosphine,as a common compound, the synthetic route is as follows.

Pt(tht)2Cl2 (synthesized according to a method disclosed in J. Chem. Soc., Dalton Trans. 1980, 888-894; 100 mg, 1 eq, ?tht? represents tetrahydrothiophene), benzyldiphenylphosphine purchased from Alfa Aesar (68 mg, 1.1 eq), and sodium acetate (94 mg, 5 eq) were added in a 50 mL round-bottomed flask, and degassed xylene (purchased from ECHOChemical; Product no: XA2101-000000-72EC; 6 mL) was then added therein with mixing to obtain a mixture, followed by heating to 100 C. and reacting for 12 hours. The mixture was then cooled to room temperature, and a precursor solution (PS1) of a phosphorescent four-coordinated platinum (II) complex was obtained. 3-(4-(tert-butyl)pyridin-2-yl)-7,8,8-trimethyl-4,5,6,7-tetrahydro-2H-4,7-methanoindazole (70 mg, 1 eq) was added into the PS1 obtained from Synthesis Example 1 to obtain a mixture, and the mixture was heated to 100 C. and reacted for 6 hours, followed by cooling to room temperature and removing the solvent. Silica-gel column chromatography was conducted to purify the mixture using an eluent of ethyl acetate (hereinafter referred as EA) and n-hexane (EA:n-hexane=1:3 (by volume)). Recrystallization was then conducted using dichloromethane/n-hexane so as to obtain a white crystalline product, referred to as complex E1 (77.4% yield; 137 mg). The reaction scheme for producing the complex E1 is represented as follows: The spectrum analysis for the complex E1 is: 1H NMR (400 MHz, CD2Cl2, 298 K) delta 8.97 (d, J=8.1 Hz, 1H), 7.84 (dd, J=10.4, 18.3 Hz, 4H), 7.38-7.51 (m, 8H), 7.06-7.07 (m, 2H), 6.94 (t, J=7.2 Hz, 1H), 6.47 (dd, J=1.8, 6 Hz, 1H), 3.73 (d, J=11.2 Hz, 2H), 2.97 (d, J=3.7 Hz, 1H), 2.08-2.14 (m, 1H), 1.80-1.86 (m, 1H), 1.43-1.47 (m, 1H), 1.41 (s, 3H), 1.25 (s, 9H), 0.97 (s, 3H), 0.84-0.88 (m, 1H), 0.81 (s, 3H) ppm, 31P NMR (200 MHz, CDCl3, 298 K) delta 36.38 ppm, FAB-MS m/z 779.7 [M+1]+, 7650-91-1

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

Reference£º
Patent; National Tsing Hua University; Chi, Yun; Huang, Li-Min; US8722885; (2014); B1;,
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.

General procedure: The synthesis is similar to 2, with PPh3 being replaced by dppf(1.1 g, 2.0 mmol). The residue was purified by column chromatographyon silica gel (eluent: CH2Cl2/CH3OH, 30:1, V/V) to give abrown-yellow solid. Yield: 0.75 g, 72percent. 1H NMR (500 MHz, CDCl3)d 9.18 (d, J 8.2 Hz, 2H, ePhH), 8.63 (d, J 8.5 Hz, 2H, ePhH), 8.08(d, J 8.3 Hz, 2H, ePhH), 7.73e7.60 (m, 10H, ePhH), 7.56 (td, J 7.3,1.2 Hz, 4H, ePhH), 7.49e7.40 (m, 8H, ePhH), 6.29 (d, J 8.4 Hz, 2H,ePhH), 4.49 (s, 4H, eCpH), 4.20 (dd, J 8.2, 6.2 Hz, 8H, eCH2CH2e,eCpH), 1.73 (dt, J 15.2, 7.6 Hz, 4H, eCH2CH2e), 1.52e1.42 (m, 4H,eCH2CH2e), 0.99 (t, J 7.4 Hz, 6H, eCH2CH3). 13C NMR (125 MHz,Scheme 1.CDCl3) d 165.15, 164.40, 157.03, 133.29, 132.50, 131.90, 131.82, 131.31,131.17, 130.58, 129.82, 129.42, 129.23, 128.98, 128.91, 128.81, 124.08,122.48, 115.10, 114.99, 109.74, 74.39, 39.87, 30.39, 29.68, 20.46,13.90. 31P NMR (200 MHz, CDCl3) d 9.40. MS calcd for C66H56Fe-N4O5P2Na [MNa]: 1109.31, found: 1109.4., 12150-46-8

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

Reference£º
Article; Xu, Shou De; Fang, Cheng Hui; Tian, Guang Xuan; Chen, Yi; Dou, Ye Hong; Kou, Jun Feng; Wu, Xiang Hua; Journal of Molecular Structure; vol. 1102; (2015); p. 197 – 202;,
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