Category: 121643-44-5

Adding a certain compound to certain chemical reactions, such as: 121643-44-5, 2-Methoxy-3-(trifluoromethyl)pyridine, 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, Recommanded Product: 121643-44-5, blongs to pyridine-derivatives compound. Recommanded Product: 121643-44-5

2. 3-Trifluoromethyl-pyridin-2-ol EPO Heat a mixture of 2-methoxy-3-trifluoromethyl-pyridine (1.0 g, 5.6 mmol) and 30% HBr in acetic acid (5 mL) at reflux for 1 hour. Cool the mixture and remove the volatiles by rotary evaporation. Add ether and collect the precipitate by filtration. Air-dry to give the title compound as the hydrogen bromide salt.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,121643-44-5, 2-Methoxy-3-(trifluoromethyl)pyridine, and friends who are interested can also refer to it.

Reference:
Patent; NEUROGEN CORPORATION; WO2006/42289; (2006); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 121643-44-5, 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.121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine, molecular formula is C7H6F3NO, molecular weight is 177.1239, as common compound, the synthetic route is as follows.

Intermediate 1 : 5-Bromo-2-methoxy-3-trifluoromethyl-pyridineTo 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 1 13.0 mmol) and 1 ,3-dibromo-5,5- dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 mL) and the resulting mixture stirred at rt for 18h under argon. The TFA was removed in vacuo (50 mbar, 45C) and the residue suspended in tert-butyl methyl ether (200 mL). The resulting colourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL).The filtrate was concentrated in vacuo, diluted with heptane/ tert-butyl methyl ether (5/1 , 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane / EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHC03 (20g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5g, 74% yield). 1H-NMR (400 MHz, DMSO-d6, 298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

The chemical industry reduces the impact on the environment during synthesis 121643-44-5, I believe this compound will play a more active role in future production and life.

Reference:
Patent; NOVARTIS AG; FERNANDES GOMES DOS SANTOS, Paulo Antonio; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; SOLDERMANN, Nicolas; STOWASSER, Frank; TUFILLI, Nicola; ZECRI, Frederic; WO2013/1445; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 121643-44-5, 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.121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine, molecular formula is C7H6F3NO, molecular weight is 177.1239, as common compound, the synthetic route is as follows.

Intermediate 1 : 5-Bromo-2-methoxy-3-trifluoromethyl-pyridineTo 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 1 13.0 mmol) and 1 ,3-dibromo-5,5- dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 mL) and the resulting mixture stirred at rt for 18h under argon. The TFA was removed in vacuo (50 mbar, 45C) and the residue suspended in tert-butyl methyl ether (200 mL). The resulting colourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL).The filtrate was concentrated in vacuo, diluted with heptane/ tert-butyl methyl ether (5/1 , 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane / EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHC03 (20g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5g, 74% yield). 1H-NMR (400 MHz, DMSO-d6, 298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

The chemical industry reduces the impact on the environment during synthesis 121643-44-5, I believe this compound will play a more active role in future production and life.

Reference:
Patent; NOVARTIS AG; FERNANDES GOMES DOS SANTOS, Paulo Antonio; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; SOLDERMANN, Nicolas; STOWASSER, Frank; TUFILLI, Nicola; ZECRI, Frederic; WO2013/1445; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 121643-44-5, 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. 121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine, molecular formula is C7H6F3NO, 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.

To 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 1 13.0 mmol) and 1 ,3-dibromo-5,5-dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 ml_) and the resulting mixture stirred at rt for 8h under argon. The TFA was removed in vacuo (50 mbar, 45C) and the residue suspended in tert-butyl methyl ether (200 ml_). The resultingcolourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL).The filtrate was concentrated in vacuo, diluted with heptane/ tert-butyl methyl ether (5/1 , 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane / EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHC03 (20g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5g, 74% yield).1H-NMR (400 MHz, DMSO-d6,298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

According to the analysis of related databases, 121643-44-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo Antonio; FURET, Pascal; HEBACH, Christina; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; KALIS, Christoph; LEWIS, Ian; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; STRANG, Ross; STOWASSER, Frank; TUFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; WO2013/88404; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 121643-44-5, 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. 121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine, molecular formula is C7H6F3NO, 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.

To 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 1 13.0 mmol) and 1 ,3-dibromo-5,5-dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 ml_) and the resulting mixture stirred at rt for 8h under argon. The TFA was removed in vacuo (50 mbar, 45C) and the residue suspended in tert-butyl methyl ether (200 ml_). The resultingcolourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL).The filtrate was concentrated in vacuo, diluted with heptane/ tert-butyl methyl ether (5/1 , 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane / EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHC03 (20g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5g, 74% yield).1H-NMR (400 MHz, DMSO-d6,298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

According to the analysis of related databases, 121643-44-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo Antonio; FURET, Pascal; HEBACH, Christina; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; KALIS, Christoph; LEWIS, Ian; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; STRANG, Ross; STOWASSER, Frank; TUFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; WO2013/88404; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 121643-44-5, 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. 121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine, molecular formula is C7H6F3NO, 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.

To 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 1 13.0 mmol) and 1 ,3-dibromo-5,5-dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 ml_) and the resulting mixture stirred at rt for 8h under argon. The TFA was removed in vacuo (50 mbar, 45C) and the residue suspended in tert-butyl methyl ether (200 ml_). The resultingcolourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL).The filtrate was concentrated in vacuo, diluted with heptane/ tert-butyl methyl ether (5/1 , 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane / EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHC03 (20g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5g, 74% yield).1H-NMR (400 MHz, DMSO-d6,298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

According to the analysis of related databases, 121643-44-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo Antonio; FURET, Pascal; HEBACH, Christina; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; KALIS, Christoph; LEWIS, Ian; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; STRANG, Ross; STOWASSER, Frank; TUFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; WO2013/88404; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 121643-44-5, 2-Methoxy-3-(trifluoromethyl)pyridine, 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, 121643-44-5, blongs to pyridine-derivatives compound. COA of Formula: C7H6F3NO

Intermediate 1 5-Bromo-2-methoxy-3-trifluoromethyl-pyridine To 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 113.0 mmol) and 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 mL) and the resulting mixture stirred at rt for 18 h under argon. The TFA was removed in vacuo (50 mbar, 45 C.) and the residue suspended in tert-butyl methyl ether (200 mL). The resulting colourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL). The filtrate was concentrated in vacuo, diluted with heptane/tert-butyl methyl ether (5/1, 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane/EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHCO3 (20 g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5 g, 74% yield). 1H-NMR (400 MHz, DMSO-d6, 298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1H) 8.4 (d, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,121643-44-5, its application will become more common.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo Antonio; FURET, Pascal; HEBACH, Christina; HOGENAUER, Klemens; HOLLINGWORTH, Gregory; KALIS, Christoph; LEWIS, Ian; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; STRANG, Ross; STOWASSER, Frank; TUFFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; US2015/342951; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Application of 121643-44-5, Adding some certain compound to certain chemical reactions, such as: 121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine,molecular formula is C7H6F3NO, 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 121643-44-5.

2-Methoxy-3-trifluoromethyl-pyridine (2.7 g, 14.79 mmol) and 1 ,3-dibromo-5,5- dimethylhydantoin (5.28g, 18.48 mmol) were placed in a round-bottom flask. To this mixture was slowly added 40ml TFA. The mixture was stirred overnight at ambient temperature (16h). After completion of the reaction, TFA solvent was evaporated in vacuo and the resulting residue was neutralized to pH6-7 by the addition of saturated NaHC03. The aqueous layer was extracted with DCM two times and the combined extract was washed with brine, dried over magnesium sulfate and concentrated in vacuo to give a mixture of oil and white solid. The residue was redissolved into 20% Ethylacetate/Heptane (50ml) and the insoluble white solid was filtered off. The filtrate was concentrated and then purified by Flash- chromatography on silica gel (EtOAc/Heptane 5/95) to give 5-Bromo-2-methoxy-3- trifluoromethyl-pyridine as a colorless liquid (2.08 g, 52% yield).1 H-NMR (400 MHz, DMSO-d6, 298 K): ? ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

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. 121643-44-5, 2-Methoxy-3-(trifluoromethyl)pyridine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; NOVARTIS AG; FURET, Pascal; HEBACH, Christina; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; LEWIS, Ian; SMITH, Alexander, Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; WOLF, Romain; ZECRI, Frederic; WO2013/57711; (2013); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Adding a certain compound to certain chemical reactions, such as: 121643-44-5, 2-Methoxy-3-(trifluoromethyl)pyridine, 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, 121643-44-5, blongs to pyridine-derivatives compound. Application In Synthesis of 2-Methoxy-3-(trifluoromethyl)pyridine

Intermediate 1 5-Bromo-2-methoxy-3-trifluoromethyl-pyridine To 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 113.0 mmol) and 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 mL) and the resulting mixture stirred at rt for 18 h under argon. The TFA was removed in vacuo (50 mbar, 45 C.) and the residue suspended in tert-butyl methyl ether (200 mL). The resulting colourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL). The filtrate was concentrated in vacuo, diluted with heptane/tert-butyl methyl ether (5/1, 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane/EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHCO3 (20 g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5 g, 74% yield). 1H-NMR (400 MHz, DMSO-d6, 298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1H) 8.4 (d, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,121643-44-5, its application will become more common.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo Antonio; FURET, Pascal; HEBACH, Christina; HOGENAUER, Klemens; HOLLINGWORTH, Gregory; KALIS, Christoph; LEWIS, Ian; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STAUFFER, Frederic; STRANG, Ross; STOWASSER, Frank; TUFFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; US2015/342951; (2015); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 121643-44-5 , The common heterocyclic compound, 121643-44-5, name is 2-Methoxy-3-(trifluoromethyl)pyridine, molecular formula is C7H6F3NO, 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.

Intermediate 1 : 5-Bromo-2-methoxy-3-trifluoromethyl-pyridine To 2-methoxy-3-(trifluoromethyl)pyridine (20.0 g, 1 13.0 mmol) and 1 ,3-dibromo-5,5- dimethylimidazolidine-2,4-dione (43.6 g, 152.0 mmol) was added TFA (80 mL) and the resulting mixture stirred at rt for 18h under argon. The TFA was removed in vacuo (50 mbar, 45C) and the residue suspended in tert-butyl methyl ether (200 mL). The resulting colourless solid was removed by filtration and washed with tert-butyl methyl ether (50 mL). The filtrate was concentrated in vacuo and suspended in EtOAc (50 mL) The insoluble colourless solid was removed by filtration and washed with EtOAc (50 mL).The filtrate was concentrated in vacuo, diluted with heptane/ tert-butyl methyl ether (5/1 , 20 mL) and the insoluble colourless solid was removed by filtration. The filtrate was purified by column chromatography on silica gel with heptane / EtOAc, 100/0 to 90/10. The crude product was filtered through a plug of NaHC03 (20g) and the filtrate evaporated in vacuo to give a golden oil (27.9 g). The oil was dissolved in heptanes (20 mL) and purified by filtered through a plug of silica gel (80 g), eluting with heptane to give 5-bromo-2-methoxy-3-(trifluoromethyl)pyridine as a colourless oil (22.5g, 74% yield). 1 H-NMR (400 MHz, DMSO-d6, 298 K): delta ppm 4.03 (s, 3H) 7.95 (d, 1 H) 8.4 (d, 1 H).

The synthetic route of 121643-44-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; NOVARTIS AG; COOKE, Nigel Graham; FERNANDES GOMES DOS SANTOS, Paulo; GRAVELEAU, Nadege; HEBACH, Christina; HOeGENAUER, Klemens; HOLLINGWORTH, Gregory; SMITH, Alexander Baxter; SOLDERMANN, Nicolas; STOWASSER, Frank; STRANG, Ross; TUFILLI, Nicola; VON MATT, Anette; WOLF, Romain; ZECRI, Frederic; WO2012/4299; (2012); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem