Category: 500011-84-7

Synthetic Route of 500011-84-7, These common heterocyclic compound, 500011-84-7, name is 3-Bromo-1-(dimethylsulfamoyl)pyrazole, 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 3: Preparation of 3-bromo-lff-pyrazole; To 3-bromo-pyrazole-l-sulfonic acid dimethylamide (21.3 g) was slowly added trifluoroacetic acid (30 mL) and stirred at room temperature for 2 h. Hexane was added and the formed precipitate was filtered off and washed with hexane. The filtrate was diluted with MTB-ether, washed with sat. NaHC03-solution, water and brine, dried over MgSO4 and concentrated in vacuum to afford 10.7 g of a colorless oil containing 80% of the title compound of the formulaBrH The residue was used for the next step without further purification .1H-NMR (CDCl3, TMS) 8 (ppm) : 6.37 (IH, d, J = 3 Hz), 7.55 (IH, d, J = 3 Hz), 12.6 (IH, br s).

The synthetic route of 500011-84-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SUMITOMO CHEMICAL COMPANY, LIMITED; WO2008/130021; (2008); A2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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 500011-84-7 as follows. category: pyrazoles-derivatives

To trifluoroacetic acid (70 mL) was slowly added [3-BROMO N, N DIMETHYL-1H] [PYRAZOLE-L-SULFONAMIDE] (i. e. the bromopyrazole product of Step B) (57.04 g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl acetate/dichloromethane (10: 90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with dichloromethane [(3X),] dried over magnesium sulfate and concentrated to afford the title product as a white solid (25.9 g), m. p. [61-64 C.] 1H NMR (CDC13) 8 6.37 (d, 1H), 7.59 (d, 1H), 12.4 (br s, 1H).

According to the analysis of related databases, 500011-84-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; E.I. DU PONT DE NEMOURS AND COMPANY; WO2004/11447; (2004); A2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Related Products of 500011-84-7,Some common heterocyclic compound, 500011-84-7, name is 3-Bromo-1-(dimethylsulfamoyl)pyrazole, molecular formula is C5H8BrN3O2S, 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.

To trifluoroacetic acid (70 mL) was slowly added [3-BROMO-N, N-DIMETHYL-LH-] [PYRAZOLE-1-SULFONAMIDE] (i. e. the bromopyrazole product of Step A) (57.04 g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl [ACETATE/DICHLOROMETHANE] (10: 90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with methylene chloride (3x), dried over magnesium sulfate and concentrated to afford the title product as a white solid (25.9 g), m. p. [61-64 C.] [1H] NMR (CDC13) [8] 6.37 (d, 1H), 7.59 (d, 1H), 12.4 (br s, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3-Bromo-1-(dimethylsulfamoyl)pyrazole, its application will become more common.

Reference:
Patent; E.I. DU PONT DE NEMOURS AND COMPANY; STEVENSON, Thomas, Martin; WO2003/106427; (2003); A2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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 500011-84-7 as follows. SDS of cas: 500011-84-7

Step B: Preparation of 3-BromopyrazoleTo trifluoroacetic acid (70 mL) was slowly added the bromopyrazole product (57.04 g) from Step A. The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl acetate/dichloromethane (10:90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with methylene chloride (3×), dried over magnesium sulfate and concentrated to afford the title product as a white solid (25.9 g), m.p. 61-64 C. 1H NMR (CDCl3) delta 6.37 (d, 1H), 7.59 (d, 1H), 12.4 (br s, 1H).

According to the analysis of related databases, 500011-84-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; E I DU PONT DE NEMOURS AND COMPANY; Lahm, George Philip; McCann, Stephen Frederick; Patel, Kanu Maganbhai; Selby, Thomas Paul; Stevenson, Thomas Martin; US9113630; (2015); B2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

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 500011-84-7 as follows. COA of Formula: C5H8BrN3O2S

To trifluoroacetic acid (70 mL) was slowly added [3-BROMO N, N DIMETHYL-1H] [PYRAZOLE-L-SULFONAMIDE] (i. e. the bromopyrazole product of Step B) (57.04 g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl acetate/dichloromethane (10: 90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with dichloromethane [(3X),] dried over magnesium sulfate and concentrated to afford the title product as a white solid (25.9 g), m. p. [61-64 C.] 1H NMR (CDC13) 8 6.37 (d, 1H), 7.59 (d, 1H), 12.4 (br s, 1H).

According to the analysis of related databases, 500011-84-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; E.I. DU PONT DE NEMOURS AND COMPANY; WO2004/11447; (2004); A2;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Related Products of 500011-84-7, The chemical industry reduces the impact on the environment during synthesis 500011-84-7, name is 3-Bromo-1-(dimethylsulfamoyl)pyrazole, I believe this compound will play a more active role in future production and life.

To trifluoroacetic acid (70 mL) was slowly added [3-BROMO N, N DIMETHYL-1H] [PYRAZOLE-L-SULFONAMIDE] (i. e. the bromopyrazole product of Step B) (57.04 g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl acetate/dichloromethane (10: 90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with dichloromethane [(3X),] dried over magnesium sulfate and concentrated to afford the title product as a white solid (25.9 g), m. p. [61-64 C.] 1H NMR (CDC13) 8 6.37 (d, 1H), 7.59 (d, 1H), 12.4 (br s, 1H).

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, 3-Bromo-1-(dimethylsulfamoyl)pyrazole, other downstream synthetic routes, hurry up and to see.

Application of 500011-84-7, The chemical industry reduces the impact on the environment during synthesis 500011-84-7, name is 3-Bromo-1-(dimethylsulfamoyl)pyrazole, I believe this compound will play a more active role in future production and life.

Step B: Preparation of 3-bromopyrazole;To trifluoroacetic acid (70 mL) was slowly added 3-bromo-iV,N-dimethyl-lH- pyrazole-1 -sulfonamide (i.e. the bromopyrazole product of Step A) (57.04 g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl acetate/dichloromethane (10:90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with methylene chloride (3x), dried over magnesium sulfate and concentrated to afford 25.9 g of the title product as a white solid, m.p. 61-64 C. 1H NuMR (CDCl3): delta 12.4 (br s,lH), 7.59 (d,lH), 6.37 (d,lH).

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, 3-Bromo-1-(dimethylsulfamoyl)pyrazole, other downstream synthetic routes, hurry up and to see.

Synthetic Route of 500011-84-7,Some common heterocyclic compound, 500011-84-7, name is 3-Bromo-1-(dimethylsulfamoyl)pyrazole, molecular formula is C5H8BrN3O2S, 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 B: Preparation of 3-bromopyrazole;To trifluoroacetic acid (70 mL) was slowly added 3-bromo-iV,N-dimethyl-lH- pyrazole-1 -sulfonamide (i.e. the bromopyrazole product of Step A) (57.04 g). The reaction mixture was stirred at room temperature for 30 minutes and then concentrated at reduced pressure. The residue was taken up in hexane, insoluble solids were filtered off, and the hexane was evaporated to afford the crude product as an oil. The crude product was further purified by chromatography on silica gel using ethyl acetate/dichloromethane (10:90) as eluent to afford an oil. The oil was taken up in dichloromethane, neutralized with aqueous sodium bicarbonate solution, extracted with methylene chloride (3x), dried over magnesium sulfate and concentrated to afford 25.9 g of the title product as a white solid, m.p. 61-64 C. 1H NuMR (CDCl3): delta 12.4 (br s,lH), 7.59 (d,lH), 6.37 (d,lH).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3-Bromo-1-(dimethylsulfamoyl)pyrazole, its application will become more common.

Reference of 500011-84-7, These common heterocyclic compound, 500011-84-7, name is 3-Bromo-1-(dimethylsulfamoyl)pyrazole, 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 3: Preparation of 3-bromo-lff-pyrazole; To 3-bromo-pyrazole-l-sulfonic acid dimethylamide (21.3 g) was slowly added trifluoroacetic acid (30 mL) and stirred at room temperature for 2 h. Hexane was added and the formed precipitate was filtered off and washed with hexane. The filtrate was diluted with MTB-ether, washed with sat. NaHC03-solution, water and brine, dried over MgSO4 and concentrated in vacuum to afford 10.7 g of a colorless oil containing 80% of the title compound of the formulaBrH The residue was used for the next step without further purification .1H-NMR (CDCl3, TMS) 8 (ppm) : 6.37 (IH, d, J = 3 Hz), 7.55 (IH, d, J = 3 Hz), 12.6 (IH, br s).

The synthetic route of 500011-84-7 has been constantly updated, and we look forward to future research findings.