Category: 1796-84-5

Adding a certain compound to certain chemical reactions, such as: 1796-84-5, 4-Ethoxy-3-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, SDS of cas: 1796-84-5, blongs to pyridine-derivatives compound. SDS of cas: 1796-84-5

Step 7: 3-[(4-(N-3-Nitropyrid-4-yl)aminomethyl)phenylsulfonyl]indole. A solution of 1-phenylsulfonyl-3-[(4-aminomethyl)phenylsulfonyl]indole (2.10 g, 4.79 mmol), prepared in step 6, and 4-ethoxy-3-nitropyridine (0.894 g, 5.31 mmol) in ethanol (20 mL) and triethylamine (1 mL) was heated at reflux for 70 hours. The reaction mixture was cooled to ambient temperature and diluted with ethyl acetate (250 mL). The organic phase was washed twice with H2 O and once with brine. The combined aqueous washings were extracted with ethyl acetate. The combined organic as layers were dried over Na2 SO4, filtered, and concentrated in vacuo. Chromatography on silica gel (ethyl acetate, then 0.2% ethanol/ethyl acetate) followed by recrystallization from ethyl acetate/ether gave 3-[(4-(N-3-nitropyrid-4-yl)aminomethyl)phenylsulfonyl]indole (350 mg, 23% yield). mp 97-102 C.

The synthetic route of 1796-84-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Abbott Laboratories; US5486525; (1996); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 1796-84-5, 4-Ethoxy-3-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, 1796-84-5, blongs to pyridine-derivatives compound. Computed Properties of C7H8N2O3

Step 4: 1-N,N-Dimethylcarbamoyl-4-bromo-3-(4-(N-3-nitropyridin-4-yl)aminomethylbenzoyl)indole. A mixture of the 1-N,N-dimethylcarbamoyl-4-bromo-3-(4-aminomethylbenzoyl)indole prepared in step 3 (13.65 g) and 4-ethoxy-3-nitropyridine (5.10 g, 30.3 mmol) in CH3 CN (50 mL) was heated at reflux for 50 hours during which time 46 mL of solvent distilled out. To the thick residue was added toluene (50 mL) and the mixture was heated at a rate such that 21 mL of solvent distilled off over 2 hours. The reaction mixture was cooled to ambient temperature and diluted with ethyl acetate (30 mL). The solution was placed directly on a silica gel column and eluted with 50%, then 80% ethyl acetate/toluene to give 1-N,N-dimethylcarbamoyl-4-bromo-3-(4-(N-3-nitropyridin-4-yl)aminomethylbenzoyl)indole (6.76 g), mp 173.5-174.5 C. after crystallization from ethyl acetate/ether.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1796-84-5, its application will become more common.

Reference:
Patent; Abbott Laboratories; US5486525; (1996); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Electric Literature of 1796-84-5 ,Some common heterocyclic compound, 1796-84-5, molecular formula is C7H8N2O3, 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.

Step 1: 3-nitro-4-[2-(piperazine-1-yl)ethyl]aminopyridine. A mixture of 1-(2-aminoethyl)piperazine and 4-ethoxy-3-nitropyridine in CH3 CN was heated at reflux for 40 hours. The reaction mixture was cooled to ambient temperature and concentrated to give 3-nitro-4-[2-(piperazine-1-yl)ethyl]aminopyridine which was used without further purification.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,1796-84-5, its application will become more common.

Reference:
Patent; Abbott Laboratories; US5654305; (1997); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1796-84-5, name is 4-Ethoxy-3-nitropyridine, molecular formula is C7H8N2O3, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. name: 4-Ethoxy-3-nitropyridine

Example 6 Preparation of 2-amino-4-ethoxy-5-nitropyridine: 2-Amino-4-ethoxy-5-nitropyridine with a melting point of 215 to 217 C. is obtained from 0.34 g of 4-ethoxy-3-nitropyridine, 0.33 g of N,N-tetramethylenethiocarbamoylsulphenamide and 0.6 g of potassium tert.-butylate following the same procedure as in Example 2; the yield is 0.28 g (75%).

With the rapid development of chemical substances, we look forward to future research findings about 1796-84-5.

Reference:
Patent; Bayer Aktiengesellschaft; US5262539; (1993); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.1796-84-5, name is 4-Ethoxy-3-nitropyridine, molecular formula is C7H8N2O3, molecular weight is 168.15, as common compound, the synthetic route is as follows.Computed Properties of C7H8N2O3

A solution consisting of 4-ethoxy-3-nitropyridine (15.0 g, 97.3 MMOL) and EtNH2 (46.5 mL, 70% aq. solution, 584 MMOL) in ETOH (30 mL) was stirred at 85 C in a pressure vessel for 2 h. Removal of all VOLATILES IN VACUO afforded the title compound (16.2 g, 99 %). MS (ES+) m/z 168 (M+H) +.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,1796-84-5, 4-Ethoxy-3-nitropyridine, and friends who are interested can also refer to it.

Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2005/11700; (2005); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 1796-84-5, 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 1796-84-5 as follows.

Compound 3c (3.0 g, 13.2 mmol), 4-ethoxy-3-nitropyridine (2.7 g, 13.2 mmol) and DIPEA (1.89 g, 14.6 mmol) were dissolved in N-methylpyrrolidinone (5 ml). The reaction mixture was heated to 120 C. for 18 hours. The reaction solution was cooled, extracted with ethyl acetate, washed with water, dried over magnesium sulfate, and concentrated. Then ether was added to precipitate solids, and compound 3d (1.5 g, 33%) was obtained by suction filtration. MS: 347.2 [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,1796-84-5, its application will become more common.

Reference:
Patent; SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES; LIU, Hong; WU, Beili; ZHENG, Yongtang; XIE, Xin; JIANG, Hualiang; PENG, Panfeng; LUO, Ronghua; LI, Jing; LI, Jian; ZHU, Ya; CHEN, Ying; ZHANG, Haonan; YANG, Liumeng; ZHOU, Yu; CHEN, Kaixian; (94 pag.)US2017/44187; (2017); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1796-84-5, name is 4-Ethoxy-3-nitropyridine, molecular formula is C7H8N2O3, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. Recommanded Product: 1796-84-5

Into a 1 L flask containing 250 mL of dry THF cooled to -780C was condensed NH3 (100-150 mL). Neat t-BuOK (182 mmol, 20.5 g) was added to the THF which completely dissolved after 10 min of vigorous stirring. In a separate 500 mL flask, 10OmL of dry THF containing 4-(ethyloxy)-3-nitropyridine (12.3 g, 72.9 mmol) was cooled to 0C. To this solution was added t-BuOOH (80.2 mmole, 14 mL). The t-BuOOH/THF solution was then added to the -780C ammonia solution over 20 min via dropping funnel. The reaction solution was allowed to warm to – 40C and then stirred at this temperature for 1 h. The reaction was quenched with saturated NH4CI solution (20 mL) and the cooling bath removed. The reaction solution was allowed to stir overnight at RT. The precipitate was filtered and dried under vacuum using a toluene azeotrope: LCMS: m/z 185 [M+H]+.

With the rapid development of chemical substances, we look forward to future research findings about 1796-84-5.

Reference:
Patent; SMITHKLINE BEECHAM CORPORATION; WO2006/113837; (2006); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem