Tag: M.W:300-400

14871-92-2,The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a downstream synthesis route of the compound 14871-92-2

General procedure: Silver tetrafluoroborate (AgBF4) (0.6 mmol) was dissolvedin methanol (7 mL); (2,2?-bipyridine) dichloropalladium(II)(Pd(Bpy)Cl2) (0.3 mmol) was dissolved in DMSO (1 mL),and then, the solutions were stirred together at ambient temperature0.5 h. Following gravity filtration, solid 3-hydroxyflavonederivative (0.3 mmol) and triethylamine (0.7 mL)were added to the filtrate. The reaction mixture was stirredfor 0.5 h (2 h for the Fla-OMe). The corresponding bipyridinepalladium flavonolato salt was then recovered usingvacuum filtration and recrystallized in CH3OH/CH3CN solvent;remaining solvent was removed in a vacuum desiccatorovernight.[(PdII(Bpy)(3-Hydroxy-4?-methoxyFla)][BF4] complex1 Yield: 129 mg, 70% (orange crystals) Found: C, 50.51;H, 3.01; N, 4.52; Calcd for C26H19BF4N2O4Pd:C, 50.64;H, 3.11; N, 4.54. UV-Vis lambdamax (CH3CN/nm)(epsilon/M-1 cm-1) (444 (25 200); 1H NMR (CD3CN, 400 MHz): delta 7.92 (d,J = 6.5 Hz, 2H), 7.85 (m, J = 21.9 Hz, 4H), 7.65 (t, J = 18.7,2H), 7.47 (d, J = 7.3 Hz, 2H), 7.28 (t, J = 11.4 Hz, 1 H),7.19 (d, J = 6.5 Hz, 2 H), 7.13 (t, J = 13.9 Hz, 1 H), 6.66 (d,J = 8.1 Hz, 2 H); 13C NMR (CD3CN, 400 MHz): delta = 181.44,161.13, 153.96, 153.65, 152.62, 151.82, 150.65, 148.54,148.20, 140.94, 140.67, 138.01, 133.05, 129.37, 129.14,127.34, 127.27, 125.04, 124.44, 124.03, 123.10, 123.01,121.96, 121.73, 117.45, 115.53, 54.91 ppm. ESI MS: m/z(pos.) 529.04.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about (2,2¡ä-Bipyridine)dichloropalladium(II).

Reference£º
Article; Han, Xiaozhen; Whitfield, Sarah; Cotten, Jacob; Transition Metal Chemistry; (2019);,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

Adding a certain compound to certain chemical reactions, such as: 14871-92-2,(2,2¡ä-Bipyridine)dichloropalladium(II), can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 14871-92-2,14871-92-2

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., 14871-92-2

According to the analysis of related databases, 14871-92-2, the application of this compound in the production field has become more and more popular.

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

In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 14871-92-2,(2,2¡ä-Bipyridine)dichloropalladium(II), 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.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. 14871-92-2, We look forward to the emergence of more reaction modes in the future.

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

The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a downstream synthesis route of the compound 14871-92-2,14871-92-2

General procedure: Solid [Pd(L)Cl2] (L = bpy, phen) (0.2 mmol) was added to methanolic solution H2mesc (0.039 g, 0.2 mmol) containing KOH (0.0224 g, 0.4 mmol;; 15 mL). The mixture was stirred for 24 h. The yellow precipitate was filtered off, washed with methanol and air-dried. For [Pd(bpy)(mesc)]: Anal. Calc. For C20H15N2O4.5Pd: C, 52.0; H, 3.3; N, 6.1; Pd, 23.1%, Found: C, 52.1, H, 3.2; N, 6.0; Pd, 23.0%. Conductivity data (10-3 M in DMSO): LambdaM = 2.0 Ohm-1 cm2 mol-1. IR (cm-1); nu(C=O) 1664; nu(C-C) 1486; nu(C-O) 1254; nu(Pd-O) 521; nu(Pd-N) 427. 1H NMR (d6-DMSO/TMS, ppm), delta: CH3, 3.36; H(3), 6.66; H(8), 5.90; H(5), 6.50. ESI-MS: m/z: 905 (Calcd 904.8) [Pd(bpy)(mesc)]2+, 453 (Calcd 452.4) [Pd(bpy)(mesc)]+., 14871-92-2

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 14871-92-2.

Reference£º
Article; Butler, Ian S.; Gilson, Denis F.R.; Jean-Claude, Bertrand J.; Mostafa, Sahar I.; Inorganica Chimica Acta; vol. 423; PB; (2014); p. 132 – 143;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

14871-92-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact.14871-92-2,(2,2¡ä-Bipyridine)dichloropalladium(II), it is a common compound, a new synthetic route is introduced below.

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.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 14871-92-2, other downstream synthetic routes, hurry up and to see.

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

In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 14871-92-2,(2,2¡ä-Bipyridine)dichloropalladium(II), as follows.14871-92-2

[Pd(bpy)Cl2] (0.10 g, 0.30 mmol) was suspended in water (4 mL). Lactic acid (0.03 g, 0.28 mmol) and 1 M NaOH (0.60 mL) were dissolved in water (10 mL) and then added to the mixture, which was heated under reflux at 150 C with continuous stirring until a clear yellow solution was obtained. The solution was filtered and acetone (10 mL) was added to the solution. The reaction mixture was cooled to 4 C for a long time (2 months), resulting yellow crystals of complex 5. Yield: 33%. m.p.: 250 C. Elemental Anal. Calc. for C13H13ClN2OPd (355.10): C, 44.0; H, 3.7; N, 7.9. Found: C, 44.1; H, 3.6; N, 7.8%. IR (KBr, numax/cm-1): 1634 s, nu(CO); 1621 s, nu(CC); 1496 m, 1443 s, nu(CC,CN). Far-IR (Nujol, numax/cm-1): 333 m, nu(Pd-Cl); 285 m, nu(Pd-C); 243 m, nu(Pd-N). 1H NMR (CDCl3, delta/ppm): 2.40 (s, 3H, c), 3.01 (s, 2H, a), 7.61 (m, 2H, 5,5?), 8.02 (m, 4H, 3,3? and 4,4?), 9.31, 9.51 (2d, 2H, 6,6?).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. 14871-92-2, We look forward to the emergence of more reaction modes in the future.

Reference£º
Article; Balboa, Susana; Carballo, Rosa; Castineiras, Alfonso; Gonzalez-Perez, Josefa Maria; Niclos-Gutierrez, Juan; Polyhedron; vol. 50; 1; (2013); p. 512 – 523;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. (2,2¡ä-Bipyridine)dichloropalladium(II),14871-92-2, This compound has unique chemical properties. The synthetic 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., 14871-92-2

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 14871-92-2.

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

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials.14871-92-2,A new synthetic method of this compound is introduced below.14871-92-2

Solid [Pd(bpy)Cl2] (0.085 g, 0.25 mmol) was added to Hdahmp(0.04 g, 0.25 mmol) in ethanol (10 mL). Et3N (0.02 cm3, 0.20 mmol)was then added and the reaction mixture was refluxed for 48 h. Abrown precipitate was obtained which was filtered off, washedwith methanol and air-dried. Yield: 81%. Anal. Calc. for C14H13ClN6-OPdS: C, 36.9; Cl, 7.8; H, 2.9; N, 18.5; S, 7.0; Pd, 23.4. Found: C,37.1; Cl, 7.8; H, 2.8; N, 18.6; S, 7.2; Pd, 23.3%. Conductivity data(103 M in DMF): KM = 88.0 ohm1 cm2 mol1., 14871-92-2

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, (2,2¡ä-Bipyridine)dichloropalladium(II).

Reference£º
Article; El-Morsy, Fatema A.; Jean-Claude, Bertrand J.; Butler, Ian S.; El-Sayed, Shadia A.; Mostafa, Sahar I.; Inorganica Chimica Acta; vol. 423; PB; (2014); p. 144 – 155;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method

In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 14871-92-2,(2,2¡ä-Bipyridine)dichloropalladium(II), 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., 14871-92-2

According to the analysis of related databases, (2,2¡ä-Bipyridine)dichloropalladium(II), the application of this compound in the production field has become more and more popular.

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

14871-92-2 A common heterocyclic compound, 14871-92-2,(2,2¡ä-Bipyridine)dichloropalladium(II), its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.

The new bimetallic dinuclear complex, [{PdCl(bipy)}{l-(NH2(CH2)6H2N)}{PtCl(bipy)}]Cl(ClO4), was synthesized by modificationof the procedure reported in the literature [25]. The complex[PtCl2(bipy)] (100.0 mg, 0.236 mmol) was dissolved in DMF(10 cm3) and a solution of AgClO4 (49.1 mg, 0.236 mmol) in DMF(5 cm3) was added. The mixture was stirred overnight in the dark,at room temperature. The precipitate AgCl was removed by filtrationand the resulting pale yellow solution of [PtCl(bipy)(DMF)]ClO4 was kept in a refrigerator to cool down. A suspension of[PdCl2(bipy)] complex (73.5 mg, 0.220 mmol) in 10 cm3 of DMFwas heated with stirring at 303-313 K for about 30 min. After that,the solution of 1,6-diaminohexane (25.5 mg, 0.220 mmol) in 5 cm3DMF was added dropwise. The mixture was stirred at room temperaturefor 5 h in the dark. The filtrate [PtCl(bipy)(DMF)]ClO4was added to the resulting mixture. The clear yellow solutionwas stirred for 3 h at 323 K and then for 24 h at room temperature.The solution was then evaporated and the residue washed withether. A light yellow powder was obtained and left to dry in theair. Yield (63.8 mg, 62%). Anal. Calc. for PtPdCl4O4N6C26H32(FW = 935.88): C, 33.37; H, 3.45; N, 8.98. Found: C, 33.07; H,3.80; N, 8.73%. 1H NMR characterization (D2O, 200 MHz). 1H NMR(d, ppm): 1.35-1.50 (m, CH2 C3, C4), 1.60-1.80 (m, CH2 C2, C5),2.95-3.06 (m, CH2 C1, C6), 7.30-7.42 (d, CH H5/H50(1)), 7.45-7.60 (d, CH H5/H50(2)), 7.65-7.84 (m, CH H4/H40(1)), 8.05-8.15(m CH H4/H40(2)), 8.17-8.28 m, CH H3/H30(1)), 8.32-8.40 (m, CHH3/H30(2)), 8.42-8.48 (d CH H6/H60(1)), 8.50-8.58 (d CH H6/H60(2)). IR (KBr, 4000-300 cm1): 3438 (N-H stretch); 2853, 2927(CH2 stretch); 1610 (CN stretch); 1089 (perchlorate counterion); 765, 812 (N-H wagging) (Fig. S1).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand (2,2¡ä-Bipyridine)dichloropalladium(II) reaction routes.

Reference£º
Article; Jovanovi?, Sne?ana; Petrovi?, Biljana; Petkovi?, Marijana; Bugar?i?, ?ivadin D.; Polyhedron; vol. 101; (2015); p. 206 – 214;,
Chapter 1 An introduction to palladium catalysis
Palladium/carbon catalyst regeneration and mechanical application method