Category: 22353-40-8

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. 22353-40-8, name is 2,3-Dichloro-5-nitropyridine. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 22353-40-8

2,3-Dichloro-5-nitropyridine (100 g, 0.518 mol, 1.0 equiv.) was dissolved in acetic acid (1000 mL) and iron (metallic, chips) (115.7 g, 2.07 mol, 4.0 equiv.) added in portions, keeping the temperature below 50 C. and the mixture was stirred at 25 C overnight. The solid was filtered and washed with MeOH. The organic phase was evaporated in vacuo, and the residue was dissolved in EtOAc and washed with water, dried (Na2SO4), evaporated in vacuo to afford a gray yellow solid.

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, 22353-40-8, 2,3-Dichloro-5-nitropyridine.

Reference:
Article; Duplessis, Martin; Morency, Louis; James, Clint; Minville, Joannie; Deroy, Patrick; Morin, Sebastien; Thavonekham, Bounkham; Tremblay, Martin; Halmos, Ted; Simoneau, Bruno; Bousquet, Yves; Sturino, Claudio; Tetrahedron Letters; vol. 54; 19; (2013); p. 2303 – 2307;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 22353-40-8 , The common heterocyclic compound, 22353-40-8, name is 2,3-Dichloro-5-nitropyridine, molecular formula is C5H2Cl2N2O2, 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.

Example 2C 5-amino-2,3-dichloropyridine Anhydrous SnCl2 (300 g, 1.58 mol) and concentrated HCl (350 mL) were charged to a 5 L flask with mechanical stirrer and thermocouple. The flask was cooled in ice and the product of Example 2B (100 g, 0.518 mol) was added in portions maintaining the temperature below 65 C. After the addition was complete, the cold bath was removed, and the mixture was stirred for 2 hours at ambient temperature. The mixture was cooled in ice as 25% aqueous NaOH (1000 mL) was added to bring the mixture to pH>10. The mixture was extracted with CH2Cl2 (1*600 mL, 2*400 mL) and the combined extracts were washed with brine (200 mL), dried (MgSO4), and concentrated under vacuum. The residual solid was crystallized from a mixture of water (500 mL) and ethanol (100 mL) to provide the title compound as a solid. 1H NMR (CDCl3, 300 MHz) delta 3.80 (br s, 2H), 7.10 (d, J=3 Hz, 1H), 7.77 (d, J=3 Hz, 1H); MS (DCI/NH3) m/Z 180/182/184 (M+NH4)+163/165/167 (M+H)+.

The synthetic route of 22353-40-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Buckley, Michael J.; Ji, Jianguo; US2005/261348; (2005); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 22353-40-8, 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 compound 22353-40-8, name is 2,3-Dichloro-5-nitropyridine. This compound has unique chemical properties. The synthetic route is as follows.

EXAMPLE 2C 5-amino-2,3-dichloropyridine Anhydrous SnCl2 (300 g, 1.58 mol) and concentrated HCl (350 mL) were charged to a 5 L flask with mechanical stirrer and thermocouple. The flask was cooled in ice and the product of Example 2B (100 g, 0.518 mol) was added in portions maintaining the temperature below 65 C. After the addition was complete, the cold bath was removed, and the mixture was stirred for 2 hours at ambient temperature. The mixture was cooled in ice as 25% aqueous NaOH (1000 mL) was added to bring the mixture to pH >10. The mixture was extracted with CH2Cl2 (1*600 mL, 2*400 mL) and the combined extracts were washed with brine (200 mL), dried (MgSO4), and concentrated under vacuum. The residual solid was crystallized from a mixture of water (500 mL) and ethanol (100 mL) to provide the title compound as a solid. 1H NMR (CDCl3, 300 MHz) delta 3.80 (br s, 2H), 7.10 (d, J=3 Hz, 1H), 7.77 (d, J=3 Hz, 1H); MS (DCI/NH3) m/z 180/182/184 (M+NH4)+163/165/167 (M+H)+.

According to the analysis of related databases, 22353-40-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Buckley, Michael J.; Ji, Jianguo; US2004/242641; (2004); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 22353-40-8, 2,3-Dichloro-5-nitropyridine, 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, name: 2,3-Dichloro-5-nitropyridine, blongs to pyridine-derivatives compound. name: 2,3-Dichloro-5-nitropyridine

2,3-Dichloro-5-nitropyridine (3.9 g) and iron powder (3.0 g) were added to isopropyl alcohol (40 ml) and water (8 ml) and the mixture refluxed for 4 hours. The mixture was then cooled to room temperature and filtered (celite). The filtrate was evaporated under reduced pressure and chromatographed ?SiO2; hexane:ethyl acetate (80:20) to[(50:50)] to give 5-amino-2,3-dichloropyridine (1.71 g).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,22353-40-8, 2,3-Dichloro-5-nitropyridine, and friends who are interested can also refer to it.

Reference:
Patent; Zeneca Limited; US5922732; (1999); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 22353-40-8, 2,3-Dichloro-5-nitropyridine, 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, name: 2,3-Dichloro-5-nitropyridine, blongs to pyridine-derivatives compound. name: 2,3-Dichloro-5-nitropyridine

2,3-Dichloro-5-nitropyridine (3.9 g) and iron powder (3.0 g) were added to isopropyl alcohol (40 ml) and water (8 ml) and the mixture refluxed for 4 hours. The mixture was then cooled to room temperature and filtered (celite). The filtrate was evaporated under reduced pressure and chromatographed ?SiO2; hexane:ethyl acetate (80:20) to[(50:50)] to give 5-amino-2,3-dichloropyridine (1.71 g).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,22353-40-8, 2,3-Dichloro-5-nitropyridine, and friends who are interested can also refer to it.

Reference:
Patent; Zeneca Limited; US5922732; (1999); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 22353-40-8, 2,3-Dichloro-5-nitropyridine, 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, name: 2,3-Dichloro-5-nitropyridine, blongs to pyridine-derivatives compound. name: 2,3-Dichloro-5-nitropyridine

2,3-Dichloro-5-nitropyridine (3.9 g) and iron powder (3.0 g) were added to isopropyl alcohol (40 ml) and water (8 ml) and the mixture refluxed for 4 hours. The mixture was then cooled to room temperature and filtered (celite). The filtrate was evaporated under reduced pressure and chromatographed ?SiO2; hexane:ethyl acetate (80:20) to[(50:50)] to give 5-amino-2,3-dichloropyridine (1.71 g).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,22353-40-8, 2,3-Dichloro-5-nitropyridine, and friends who are interested can also refer to it.

Reference:
Patent; Zeneca Limited; US5922732; (1999); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 22353-40-8, 2,3-Dichloro-5-nitropyridine, 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, 22353-40-8, blongs to pyridine-derivatives compound. Recommanded Product: 22353-40-8

Anhydrous SnCl2 (300 g, 1.58 mol) and concentrated HCl (350 mL) were charged to a 5L flask with mechanical stirrer and thermocouple. The flask was cooled in ice and the product of Example 2B (100 g, 0.518 mol) was added in portions maintaining the temperature below 65 C. After the addition was complete, the cold bath was removed, and the mixture was stirred for 2 hours at ambient temperature. The mixture was cooled in ice as 25% aqueous NaOH (1000 mL) was added to bring the mixture to pH>10. The mixture was extracted with CH2Cl2 (1*600 mL, 2*400 mL) and the combined extracts were washed with brine (200 mL), dried (MgSO4), and concentrated under vacuum. The residual solid was crystallized from a mixture of water (500 mL) and ethanol (100 mL) to provide the title compound as a solid. 1H NMR (CDCl3, 300 MHz) delta 3.80 (br s, 2H), 7.10 (d, J=3 Hz, 1H), 7.77 (d, J=3 Hz, 1H); MS (DCI/NH3) m/z 180/182/184 (M+NH4)+163/165/167 (M+H)+.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,22353-40-8, its application will become more common.

Reference:
Patent; Buckley, Michael J.; Ji, Jianguo; US2004/242644; (2004); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 22353-40-8, 2,3-Dichloro-5-nitropyridine, 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, 22353-40-8, blongs to pyridine-derivatives compound. Recommanded Product: 22353-40-8

Anhydrous SnCl2 (300 g, 1.58 mol) and concentrated HCl (350 mL) were charged to a 5L flask with mechanical stirrer and thermocouple. The flask was cooled in ice and the product of Example 2B (100 g, 0.518 mol) was added in portions maintaining the temperature below 65 C. After the addition was complete, the cold bath was removed, and the mixture was stirred for 2 hours at ambient temperature. The mixture was cooled in ice as 25% aqueous NaOH (1000 mL) was added to bring the mixture to pH>10. The mixture was extracted with CH2Cl2 (1*600 mL, 2*400 mL) and the combined extracts were washed with brine (200 mL), dried (MgSO4), and concentrated under vacuum. The residual solid was crystallized from a mixture of water (500 mL) and ethanol (100 mL) to provide the title compound as a solid. 1H NMR (CDCl3, 300 MHz) delta 3.80 (br s, 2H), 7.10 (d, J=3 Hz, 1H), 7.77 (d, J=3 Hz, 1H); MS (DCI/NH3) m/z 180/182/184 (M+NH4)+163/165/167 (M+H)+.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,22353-40-8, its application will become more common.

Reference:
Patent; Buckley, Michael J.; Ji, Jianguo; US2004/242644; (2004); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 22353-40-8, Adding some certain compound to certain chemical reactions, such as: 22353-40-8, name is 2,3-Dichloro-5-nitropyridine,molecular formula is C5H2Cl2N2O2, 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 22353-40-8.

EXAMPLE 10 3-amino-5,6-dichloropyridine 77.2 g (0.4 mol) of 2,3-dichloro-5-nitropyridine were dissolved in 135 ml of glacial acetic acid, and 800 ml of water were added with stirring. 111.7 g (2 mol) of iron powder were introduced in portions into the mixture (temperature?50 C.). After completion of the reaction, the mixture is filtered under suction and the product extracted using ethyl acetate. The organic phase was washed with water until neutral, dried using MgSO4 and concentrated by evaporation. The product was recrystallized from toluene. Yield 85% Melting point 107 C.

According to the analysis of related databases, 22353-40-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Hoechst Aktiengesellschaft; US4756739; (1988); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem