Catalyst palladium

Name is (2,2¡ä-Bipyridine)dichloropalladium(II), as a common heterocyclic compound, it belongs to catalyst-palladium compound, and cas is 14871-92-2, its synthesis route is as follows.,14871-92-2

Solid [Pd(bpy)Cl2] (0.166 g, 0.5 mmol) was added to dl-H2pa (0.064 g, 0.5 mmol) in ethanol (8 mL) containing triethyl amine (0.05 g, 0.5 mmol). The mixture was stirred for 72 h. The yellow-beige precipitate was filtered off, washed with ethanol and air-dried. Yield: 45%. Anal. Calcd. for C16ClH22N3O4Pd: C, 41.6; H, 4.8; N, 9.1; Cl, 7.7; Pd, 23.0%, Found: C, 41.5; H, 4.4; N, 9.0; Cl, 7.6; Pd, 23.1%. Conductivity data (10-3 M in DMF):LambdaM = 97.0 ohm-1. IR (cm-1): nu(NH) 3106; nuas(COO-) 1659; nus(COO-) 1411; nu(Pd-O) 521; nu(Pd-N) 471 cm-1. Raman: nuas(COO-) 1598; nus(COO-) 1402; delta(NH) 1560; nu(Pd-O) 529; nu(Pd-N) 450 cm-1; 1H NMR (d6-DMSO/TMS, ppm), 3.73 (d, H, Halpha); 2.50 (m, 2H, Hbeta); 2.07 (m, 2H, Hgamma); 1.30 (m, 2H, Hdelta); 3.45, 3.10 (m, 2H, Hepsilon); 13.19 (s, H, NH), ESI-MS: m/z, 816.7 {Pd(Hpa)(bpy)]2Cl}+, 780.7 {[Pd(bpy)(Hpa)]2}+, 390.0 [Pd(bpy)(Hpa)]+, 263.0 [Pd(bpy)]+.

With the complex challenges of chemical substances, we look forward to future research findings about (2,2¡ä-Bipyridine)dichloropalladium(II)

Reference£º
Article; Alie El-Deen, Afaf A.; El-Askalany, Abd El-Monem E.; Halaoui, Ruba; Jean-Claude, Bertrand J.; Butler, Ian S.; Mostafa, Sahar I.; Journal of Molecular Structure; vol. 1036; (2013); p. 161 – 167;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belongs to catalyst-palladium compound, name is Tris(dibenzylideneacetone)dipalladium-chloroform, and cas is 52522-40-4, its synthesis route is as follows.,52522-40-4

A mixture of 38 mg (0.37 mmol) Pd2(dba)3CHCl3, 100 mg (0.74mmol) of [Mo3S4Cl3(dbbpy)3]Cl and 56 mg (0.74 mmol) of thioureain 20 ml of dichloromethane was refluxed for 5 hours. An excess ofhexane was layered onto the resulting brown solution to givegreenish-brown crystals of 2. Yield: 80 mg (71percent). Anal. Calcd forC55H76N8Cl4Mo3S5Pd: C 42.7, H 5.0, N 7.2, S 10.4. Found: C 42.8,H 5.1, N 7.0, S 10.4. 1H NMR (500.13 MHz, CDCl3): delta = 9.74 (d, J =6.11 Hz, 3H), 9.03 (d, J = 5.95 Hz, 3H), 8.49 (d, J = 1.22 Hz, 3H);8.39 (d, J = 1.22 Hz, 3H); 7.58 (p, J = 4.65, J = 1.75 Hz, 6H), 6.37 (s,4H), 1.46 (s, 27H) 1.41 (s, 27H) ppm. IR (KBr, cm1): 3397 (w,sh), 3156 (m), 3127 (m), 2962 (vs), 2907 (s), 2870 (s), 1615 (vs),1545 (m), 1481 (m), 1464 (m), 1410 (s), 1367 (m), 1310 (w),1294 (w), 1255 (m), 1203 (w), 1157 (w), 1127 (w), 1079 (w),1024 (m), 901 (m), 883 (w), 852 (w), 836 (m), 744 (w), 719 (w),605 (w), 551 (w), 485 (w), 427 (w). ESI-MS (+; CH2Cl2/CH3CN):m/z = 1611 [Mo3S4(Pdtu)Cl3(dbbpy)]+, 1436 [Mo3S4(Pd)Cl3(dbbpy)]+,1327 [Mo3S4Cl3(dbbpy)]+.

With the rapid development of chemical substances, we look forward to future research findings about Tris(dibenzylideneacetone)dipalladium-chloroform

Reference£º
Article; Laricheva, Yuliya A.; Gushchin, Artem L.; Abramov, Pavel A.; Sokolov, Maxim N.; Polyhedron; vol. 154; (2018); p. 202 – 208;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

[1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium(II), cas is 72287-26-4, it is a common heterocyclic compound, the catalyst-palladium compound, its synthesis route is as follows.,72287-26-4

c) N1-[2-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-phenyl]-1-benzenesulfonamide. A mixture of the N1-(4-bromo-2-phenylbenzene)-1-benzenesulfonamide (0.388 g, 1.00 mmol), bis(pinacolato)diboron (0.305 g, 1.20 mmol), potassium acetate (0.294 g, 3.00 mmol) and [1,1′-bis(diphenylphosphino) ferrocene]dichloropalladium(II) (25 mg, 0.030 mmol) in DMF (10 ml) was heated under an atmosphere of nitrogen at 100¡ã C. for 16.5 hours. The DMF was evaporated in vacuo and the residue purified by silica gel flash chromatography using methylene chloride/heptane 7:3 plus 2percent triethyl amine to provide N1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-phenylbenzene]-1-benzenesulfonamide (0.135 g) as an oil. tR=23.13 min (RP-HPLC, 25-100percent acetonitrile-0.1percent TFA, 25 min); low resolution MS m/e 434 (M-H+)

72287-26-4 is used more and more widely, we look forward to future research findings about [1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium(II)

Reference£º
Patent; CALDERWOOD, DAVID; ARNOLD, LEE; MAZDIYASNI, HORMOZ; HIRST, GAVIN C.; DENG, BOJUAN B.; JOHNSTON, DAVID N.; RAFFERTY, PAUL; TOMETZKI, GERALD B.; TWIGGER, HELEN L.; MUNSCHAUER, RAINER; US2003/187001; (2003); A1;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO10,mainly used in chemical industry, its synthesis route is as follows.,14871-92-2

General procedure: Palladium(II) chloride (PdCl2), 2,2?-bipyridine (bipy), 1,10-phenanthroline (phen), thiourea (TU, 1), N-methylthiourea (meTU, 2), N-buthylthiourea (buTU, 3), N,N?-diethylthiourea (dietTU, 4) and N,N?-dibuthylthiourea (dibuTU, 5) were purchased as pure reagents at AG, from Sigma Aldrich. Potassium tetrachloropalladate(II) was prepared by the reaction of palladium chloride with a slight excess of potassium chloride. The complexes [Pd(bipy)Cl2] and [Pd(phen)Cl2], were obtained by adding 1 mmol of the respective ligand to 0.326 g (1 mmol) of K2[PdCl4] suspended/dissolved in 40 mL of wet methanol under reflux for about 1 h. The precipitated crystalline powders were recovered by filtration and dried under vacuum for 2 h. 0.25 mmol of these complexes (83 and 89 mg, respectively) were then suspended again in a water/methanol mixture, whereupon 0.5 mmol of the respective thiourea (1-5) was added under reflux. After 1 h, clear yellow to orange solutions were obtained. These solutions were filtrated and the filtrates were kept for 3-5 days at room temperature for crystallization. As a result yellow-red crystals were obtained. The experimental yield of the products, based on Pd, was more than 50%. All the solvents, of analytical grade, were dried and deoxygenated before being used. Elemental analyses were performed at the Microanalytical Laboratory of Redox snc (Milano). Characterization details are extensively quoted in the supplementary material.

With the synthetic route has been constantly updated, we look forward to future research findings about (2,2¡ä-Bipyridine)dichloropalladium(II),belong catalyst-palladium compound

Reference£º
Article; Rotondo, Archimede; Barresi, Salvatore; Cusumano, Matteo; Rotondo, Enrico; Polyhedron; vol. 45; 1; (2012); p. 23 – 29;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belong catalyst-palladium compound,(2,2¡ä-Bipyridine)dichloropalladium(II),14871-92-2,Molecular formula: C10H8Cl2N2Pd,mainly used in chemical industry, its synthesis route is as follows.,14871-92-2

To a yellow suspension containing 0.20 g (0.60 mmol) of [Pd(bpy)Cl2] in water (20 mL)was added 0.08 g (0.60 mmol) of HaptHCl. After the mixture was stirred at 50 C for 7 h, theresulting yellow solution was filtered. To the yellow filtrate was added an aqueous solution ofNaClO4 (2 M, 10 mL), followed by standing at room temperature for 1 d. The resulting yellowcrystals of [1](ClO4)4 suitable for X-ray analysis were collected by filtration. Yield: 0.32 g (87%).

With the synthetic route has been constantly updated, we look forward to future research findings about (2,2¡ä-Bipyridine)dichloropalladium(II),belong catalyst-palladium compound

Reference£º
Article; Kouno, Masahiro; Miyashita, Yoshitaro; Yoshinari, Nobuto; Konno, Takumi; Chemistry Letters; vol. 44; 11; (2015); p. 1512 – 1514;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belong catalyst-palladium compound,(2,2¡ä-Bipyridine)dichloropalladium(II),14871-92-2,Molecular formula: C10H8Cl2N2Pd,mainly used in chemical industry, its synthesis route is as follows.,14871-92-2

General procedure: To a vigorously stirred solution of BzpheH2 (32.32 mg, 0.12 mmol) in 8 mL CH3OH/H2O (V:V 1:1), [Pd(bipy)Cl2] (20 mg, 0.06 mmol) was added. The mixture was heated to 50C and adjusted to pH 8-9 by NaOH solution, and then stirred for 2 h. The solution was concentrated to about 80% of the original volume. The complex I-a was separated from the solution after a few days.

With the synthetic route has been constantly updated, we look forward to future research findings about (2,2¡ä-Bipyridine)dichloropalladium(II),belong catalyst-palladium compound

Reference£º
Article; Wang, Li-Wei; Liu, Si-Yuan; Wang, Jin-Jie; Peng, Wen; Li, Sheng-Hui; Zhou, Guo-Qiang; Qin, Xin-Ying; Wang, Shu-Xiang; Zhang, Jin-Chao; Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry; vol. 45; 7; (2015); p. 1049 – 1056;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belong catalyst-palladium compound,(2,2¡ä-Bipyridine)dichloropalladium(II),14871-92-2,Molecular formula: C10H8Cl2N2Pd,mainly used in chemical industry, its synthesis route is as follows.,14871-92-2

[(bpy)PdCl2] (0.332 g, 1 mmol) and Tl+L (0.475 g, 1 mmol) in 10 mL of dichloromethane were stirred for 18 h at room temperature. The resulting solution was filtered and evaporated to about 1 mL in volume. Then hexane (10 mL) was added to precipitate as a red-orange solid. The solid was repeatedly washed with diethyl ether (3 ¡Á 10 mL) and dried under vacuum to give the pure complex (0.297 g, 52.31% yield, and 1 mmol). Anal. Calc. (%) for C23H16ClN5O2PdS (568.9752): C, 48.61; H, 2.84; N, 12.32; Found (%): C, 48.59; H, 2.82; N, 12.29. TOF-MS: 532.0060 [M – Cl] +. FT-IR: 2152 (m, NCN) cm-1. 1H NMR (DMSO-d6): delta 7.16-7.20 (m, 2H, H-Ar), 7.49-7.51 (m, 2H, H-Ar), 7.65 (t, 1H, H-5, 3J 7.2), 7.74 (t, 1H, H-5′, 3J 7.2), 7.91-7.99 (m, 4H, H-Ar), 8.34-8.40 (m, 4H, H-Ar), 8.76 (d, 1H, H-6, 3J 7.2), 9.09 (d, 1H, H-6′, 3J 7.2). 13C NMR (DMSO-d6): delta 114.0 (NCN), 119.9, 121.9, 124.0, 125.9, 128.9, 133.1, 137.8, 143.0, 147.0, 149.0, 150.7, 157.9.

With the synthetic route has been constantly updated, we look forward to future research findings about (2,2¡ä-Bipyridine)dichloropalladium(II),belong catalyst-palladium compound

Reference£º
Article; Tabrizi, Leila; Zouchoune, Bachir; Zaiter, Abdallah; Inorganica Chimica Acta; vol. 499; (2020);,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO324,mainly used in chemical industry, its synthesis route is as follows.,887919-35-9

Step 3-4, Preparation of tert-butyl (3R)-4-[4-(2-ethoxypyridin-3-yl)-3-fluoro-2-(methoxycarbonyl)phenyl]-3-ethylpiperazine-1-carboxylate To a mixture of tert-butyl (3R)-4-[4-bromo-3-fluoro-2-(methoxycarbonyl)phenyl]-3-ethylpiperazine-1-carboxylate (267 mg, 0.600 mmol), (2-ethoxypyridin-3-yl)boronic acid (150 mg, 0.900 mmol), Pd[t-Bu2P(4-NMe2C6H4)]2Cl2) (42.5 mg, 0.0600 mmol), and K2CO3 (249 mg, 1.80 mmol) in a sealed tube was added dioxane (4 mL) and H2O (0.4 mL). The resulting solution was degassed with N2 (g) for 10 min, sealed, and stirred at 100 C. for 30 min. The reaction was treated with additional (2-ethoxypyridin-3-yl)boronic acid (37.8 mg, 0.226 mmol), Pd[t-Bu2P(4-NMe2C6H4)]2Cl2) (13.4 mg, 0.0189 mmol), and K2CO3 (78.3 mg, 0.567 mmol) and stirred at 100 C. for additional 30 min. The mixture was concentrated and purified by C18 reversed phase column chromatography to give the title compound (255 mg, 87% yield) as a brown gum. LCMS (M+H)+: 488.4.

With the synthetic route has been constantly updated, we look forward to future research findings about Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II),belong catalyst-palladium compound

Reference£º
Patent; Crinetics Pharmaceuticals, Inc.; HAN, Sangdon; ZHU, Yunfei; KIM, Sun Hee; ZHAO, Jian; WANG, Shimiao; (146 pag.)US2019/367481; (2019); A1;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belong catalyst-palladium compound,Tris(dibenzylideneacetone)dipalladium-chloroform,52522-40-4,Molecular formula: C52H43Cl3O3Pd2,mainly used in chemical industry, its synthesis route is as follows.,52522-40-4

To 64.3 mg (0.278 mmol) of TTbQ-Me dissolved in anhydrous acetone (20 ml) in a two necked flask, 30 mg (0.278 mmol) of p-benzoquinone and 120 mg (0.116 mmol) of Pd2DBA3CHCl3 were added in sequence under inert atmosphere (Ar). The resulting mixture was stirred in the dark for 30 min, filtered on a celite filter and evaporated under vacuum to a small volume. Addition of Et2O induces the precipitation of the complex which was filtered off and dried in a desiccator for 5 h. 82.2 mg of the title compound as a red solid were obtained (yield 80percent). 1H NMR (CDCl3, T 298 K, ppm) d: 1.37 (s, 9H, tBu), 2.99 (s, 3H,CH3 quinoline), 5.62 (broad AB system, 4H, CH]CH), 7.51 (d, 1H,J 8.4 Hz, H3), 7.58 (dd, 1H, J 8.1, 7.3 Hz, H6), 7.93 (dd, 1H, J 8.1,1.3 Hz, H5), 8.02 (dd, 1H, J 7.3, 1.3 Hz, H7), 8.22 (d, 1H, J 8.4 Hz,H4).13C{1H} NMR (CDCl3, T 298 K, ppm) d: 29.6 (CH3, CH3 quinoline),30.9 (CH3, CMe3), 54.6 (C, CMe3), 100.5 (bs, CH, CH]CH), 123.8 (CH, C3), 125.9 (CH, C6), 128.0 (C, C10), 130.3 (C, C8), 130.6 (CH, C5),138.3 (CH, C4), 138.8 (CH, C7), 149.4 (C, C9), 165.0 (C, C2), 186.9 (C,CO), 188.4 (C, CO).1H NMR (CD2Cl2, T 193 K, ppm) d: 1.26 (s, 9H, tBu), 2.87 (s, 3H,CH3 quinoline), 4.71 (d, 1H, J 5.8 Hz, CH]CH), 4.92 (d, 1H, J 5.8 Hz,CH]CH), 6.10 (d, 1H, J 9.8 Hz, CH]CH), 6.22 (d, 1H, J 9.8 Hz,CH]CH), 7.51 (d, 1H, J 8.4 Hz, H3), 7.58 (dd, 1H, J 8.1, 7.3 Hz, H6),7.96 (dd, 1H, J 8.1, 1.3 Hz, H5), 8.01 (dd, 1H, J 7.3, 1.3 Hz, H7), 8.26(d, 1H, J 8.4 Hz, H4).13C{1H} NMR (CD2Cl2, T 193 K, ppm) d: 29.0 (CH3, eCH3 quinoline),30.3 (CH3, CMe3), 54.9 (C, CMe3), 63.5 (s, CH, CH]CH), 67.6 (s,CH, CH]CH), 124.2 (CH, C3), 126.2 (CH, C6), 127.9 (C, C10), 128.9 (C,C8), 131.1 (CH, C5), 134.5 (s, CH, CH]CH), 135.3 (s, CH, CH]CH),138.8 (CH, C4), 139.2 (CH, C7), 149.2 (C, C9), 165.0 (C, C2), 186.6 (C,CO), 188.3 (C, CO). IR (KBr pellets): -CN 1575, nCO 1613; 1636 cm1. Anal calc. for C20H21NO2PdS: C, 53.88; H, 4.75; N, 3.14. Found C,53.71; H, 4.79; N, 3.01percent.

With the synthetic route has been constantly updated, we look forward to future research findings about Tris(dibenzylideneacetone)dipalladium-chloroform,belong catalyst-palladium compound

Reference£º
Article; Canovese, Luciano; Visentin, Fabiano; Santo, Claudio; Bertolasi, Valerio; Journal of Organometallic Chemistry; vol. 749; (2014); p. 379 – 386;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

As a common heterocyclic compound, it belong catalyst-palladium compound,Tris(dibenzylideneacetone)dipalladium-chloroform,52522-40-4,Molecular formula: C52H43Cl3O3Pd2,mainly used in chemical industry, its synthesis route is as follows.,52522-40-4

General procedure: 0.1127g (0.4871mmol) of Me-TtBQ, 0.1755g (1.218mmol) of dmfu and 0.2101g (0.2030mmol) of [Pd2(DBA)3¡¤CHCl3] were dissolved under inert atmosphere (Ar) in 30ml of anhydrous acetone. The mixture was stirred for 60min and eventually treated with active charcoal for 5/10min and filtered on Celite filter. The resulting yellow solution was dried under vacuum and the residual treated with diethyl ether, filtered off, washed with diethyl ether in excess and dried under vacuum. 0.1452g (yield 75%) of the title compound was obtained as pale yellow microcrystals.

With the synthetic route has been constantly updated, we look forward to future research findings about Tris(dibenzylideneacetone)dipalladium-chloroform,belong catalyst-palladium compound

Reference£º
Article; Canovese, Luciano; Visentin, Fabiano; Biz, Chiara; Scattolin, Thomas; Santo, Claudio; Bertolasi, Valerio; Polyhedron; vol. 102; (2015); p. 94 – 102;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method