Category: 51605-32-4

Related Products of 51605-32-4, 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. 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, This compound has unique chemical properties. The synthetic route is as follows.

To a solution of 24-1 (0.5g, 2.4mmol) in EtOH (2ml) was added 3N LiOH (2.2ml, 6.5mmol). The reaction mixture was heated at 800C for Ih. The heat was reduced to 400C and the mixture was stirred overnight. The mixture was then heated at 800C for an additional 5.5h. The reaction was neutralized with 12N HCl and was concentrated in vacuo. The residue was dried azeotropically with toluene to afford the desired product 24-2 as a solid. MS calculated M+H: 127.1, found 127.1

The chemical industry reduces the impact on the environment during synthesis Ethyl 5-methyl-1H-imidazole-4-carboxylate. I believe this compound will play a more active role in future production and life.

Reference:
Patent; MERCK & CO., INC.; WO2006/135627; (2006); A2;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthetic Route of 51605-32-4, These common heterocyclic compound, 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, 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.

A. To a stirred suspension of ethyl 4-methyl-1H-imidazole-5-carboxylate (2.00 g, 13.0 mmol) in acetonitrile (25 mL) and chloroform (25 mL) was added N-bromosuccinimide (2.31 g, 13.0 mmol). The reaction mixture was stirred under nitrogen atmosphere for 20 h, then concentrated in vacuo. The residue was dissolved in ethyl acetate (100 mL) and washed with saturated aqueous sodium bicarbonate (50 mL). The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography eluding with 50percent ethyl acetate in hexanes to afford ethyl 2-bromo-4-methyl-1H-imidazole-5-carboxylate as a light yellow solid (1.88 g, 62percent): 1H NMR (300 MHz, CDCl3) delta 4.35 (q, J=7.1 Hz, 2H), 2.51 (s, 3H), 1.37 (t, J=7.1 Hz, 3H); MS (ES+) m/z 233.1 (M+1), 235.1 (M+1).

The synthetic route of 51605-32-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Dales, Natalie; Fonarev, Julia; Fu, Jianmin; Hou, Duanjie; Kamboj, Rajender; Kodumuru, Vishnumurthy; Pokrovskaia, Natalia; Raina, Vandna; Sun, Shaoyi; Zhang, Zaihui; US2009/156615; (2009); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application of 51605-32-4, The chemical industry reduces the impact on the environment during synthesis 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, I believe this compound will play a more active role in future production and life.

(1) Ethyl 4-methyl-1H-imidazole-5-carboxylate (7.5 g, 48.7mmol) was dissolved in acetonitrile (120 mE), N-bromosuccinimide (10.4 g, 58.4 mmol) was added thereto, and then themixture was stirred at room temperature for 3 hours. Afier thereaction, saturated aqueous sodium hydrogen carbonate wasadded and the mixture was extracted twice with ethyl acetate.Afier washing with saturated aqueous sodium chloride, theorganic layer was dried over anhydrous sodium sulfate. Afterconcentrating the organic layer, the residue was purified bycolunm chromatography to obtain ethyl 2-bromo-4-methyl-1 H-imidazole-5-carboxylate (3.6 g):(3H, s), 1.37 (3H, t, J=7.i Hz);j0127] iH.NMR (CDC13) oe: 4.35 (2H, q, J=7.i Hz), 2.51j0128] ESI-MS mlz=233 (M+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, Ethyl 5-methyl-1H-imidazole-4-carboxylate, other downstream synthetic routes, hurry up and to see.

Application of 51605-32-4, The chemical industry reduces the impact on the environment during synthesis 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, I believe this compound will play a more active role in future production and life.

To a suspension of 60percent sodium hydride (3.12 g) which had been washed before with hexane in DMF (100 ml), ethyl 4-methylimidazole-5-carbonate (10.0 g) was added by portions at 0¡ãC. The mixture was allowed to be at room temperature and stirred for 1 hour under nitrogen atmosphere, and then, 1-iodopropane (13.9 g) was added dropwise to the mixture. After the mixture was stirred for 1 hour, water was added to the mixture, and the mixture was extracted with ethyl acetate twice. The organic layer was dried over magnesium sulfate, and the solvent was distilled off under reduced pressure. The obtained residue was separated and separated and purified by basic silica gel column chromatography (hexane-ethyl acetate = 3:1), to give ethyl 4-methyl-1-propylimidazole-5-carbonate (4.31 g) and ethyl 5-methyl-1-propylimidazole-4-carbonate (8.25 g). ethyl 4-methyl-1-propylimidazole-5-carbonate 1H-NMR (200 MHz, CDCl3) delta 0.91 (3H, t, J = 7.4 Hz), 1.39 (3H, t, J = 7.2 Hz), 1.69 to 1.87 (2H, m), 2.49 (3H, s), 4.19 (2H, t, J = 7.4 Hz), 4.33 (2H, q, J = 7.2 Hz), 7.44 (1H, s). ethyl 5-methyl-1-propylimidazole-4-carbonate 1H-NMR (200 MHz, CDCl3) delta 0.95 (3H, t, J = 7.4 Hz), 1.40 (3H, t, J = 7.4 Hz), 1.67 to 1.86 (2H, m), 2.54 (3H, s), 3.84 (2H, t, J = 7.4 Hz), 4.38 (2H, q, J = 7.4 Hz), 7.40 (1H, s).

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, Ethyl 5-methyl-1H-imidazole-4-carboxylate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Takeda Chemical Industries, Ltd.; EP1422228; (2004); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

These common heterocyclic compound, 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, 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. Formula: C7H10N2O2

(1) Ethyl 4-methyl-1H-imidazole-5-carboxylate (7.5 g, 48.7mmol) was dissolved in acetonitrile (120 mE), N-bromosuccinimide (10.4 g, 58.4 mmol) was added thereto, and then themixture was stirred at room temperature for 3 hours. Afier thereaction, saturated aqueous sodium hydrogen carbonate wasadded and the mixture was extracted twice with ethyl acetate.Afier washing with saturated aqueous sodium chloride, theorganic layer was dried over anhydrous sodium sulfate. Afterconcentrating the organic layer, the residue was purified bycolunm chromatography to obtain ethyl 2-bromo-4-methyl-1 H-imidazole-5-carboxylate (3.6 g):(3H, s), 1.37 (3H, t, J=7.i Hz);j0127] iH.NMR (CDC13) oe: 4.35 (2H, q, J=7.i Hz), 2.51j0128] ESI-MS mlz=233 (M+H).

The synthetic route of Ethyl 5-methyl-1H-imidazole-4-carboxylate has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Teijin Pharma Limited; Maruyama, Akinobu; Kamada, Hirofumi; Fujinuma, Mika; Takeuchi, Susumu; Saitoh, Hiroshi; Takahashi, Yoshimasa; US2015/284358; (2015); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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. 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate belongs to imidazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of Ethyl 5-methyl-1H-imidazole-4-carboxylate

Add DIAD (2.01 g, 9.74 mmol) dropwise at 0-5 ¡ãC under nitrogen followed by 2,2-difluoroethanol (0.64 g, 7.79 mmol) to a stirring solution of ethyl 4-methyl-1H-imidazole-5-carboxylate (1.00 g, 6.49 mmol) and triphenylphosphine (2.60 g, 9.71 mmol)THF (20 mL). Stir the mixture at 10-15 ¡ãC for 16 hrs. Concentrate the mixture and purify by silica gel combi-flash chromatography eluting with EtOAc in PE from 10percent to 35percent to give the title compound (0. 47 g, 33.2percent) as yellow oil. LC/MS (mlz): 219 (M+H).

The synthetic route of 51605-32-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ELI LILLY AND COMPANY; LILLY CHINA RESEARCH AND DEVELOPMENT CO., LTD.; HU, Zhilong; LIU, Lianzhu; MA, Tianwei; ZENG, Mi; ZHANG, Haizhen; (37 pag.)WO2018/14800; (2018); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adding a certain compound to certain chemical reactions, such as: 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, belongs to imidazoles-derivatives compound, 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 51605-32-4, HPLC of Formula: C7H10N2O2

(1) Ethyl 4-methyl-1H-imidazole-5-carboxylate (7.5 g, 48.7 mmol) was dissolved in acetonitrile (120 mL), N-bromosuccinimide (10.4 g, 58.4 mmol) was added thereto, and the mixture was stirred at room temperature for 3 hours. After the reaction, saturated aqueous sodium hydrogen carbonate was added and the mixture was extracted twice with ethyl acetate. After washing the organic layer with saturated aqueous sodium chloride, it was dried over anhydrous sodium sulfate. After concentrating the organic layer, the residue was purified by column chromatography to obtain ethyl 2-bromo-4-methyl-1H-imidazole-5-carboxylate (3.6 g): 1H-NMR (CDCl3) delta: 4.35 (2H, q, J=7.1 Hz), 2.51 (3H, s), 1.37 (3H, t, J=7.1 Hz).

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.

Reference:
Patent; TEIJIN PHARMA LIMITED; MIYAMOTO, Hidetoshi; NOZATO, Hisae; MARUYAMA, Akinobu; (16 pag.)US2017/144987; (2017); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application of 51605-32-4, 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. 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, This compound has unique chemical properties. The synthetic route is as follows.

To a mixture of ethyl 4-methyl-1H-imidazole-5-carboxylate (7.30 g, 45.9 mmol) in THF (60 mL) is added MeOH (2.23 mL, 55.1 mmol) and triphenylphosphine (14.8 g, 55.1 mmol). The reaction is cooled to 0¡ã C. under N2 and diethyl azodicarboxylate (9.0 mL, 17.6 mmol) is added dropwise. The mixture is warmed to room temperature and stirred overnight. The volatiles are evaporated in vacuo. Ether (50 mL) is added. The mixture is stirred at room temperature for 30 minutes, filtered, the filter cake is washed with ether (50 mL). The filtrate and ether washings are combined and are sequentially washed with water (30 mL) and brine (30 mL). The organic phase is dried over Na2SO4, evaporated in vacuo to provide the crude product. The crude product is subjected to silica gel flash column eluting with 30percent EtOAc in hexanes to EtOAc to give the title compound (5.13 g, 59.8percent) as a yellow oil. LC/MS (m/z): 169 (M+H).

The chemical industry reduces the impact on the environment during synthesis Ethyl 5-methyl-1H-imidazole-4-carboxylate. I believe this compound will play a more active role in future production and life.

Reference:
Patent; Eli Lilly and Company; Hu, Zhi Long; Liu, Lian Zhu; Ma, Tianwei; Zhang, Haizhen; Zhou, Jingye; (25 pag.)US2018/194755; (2018); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Related Products of 51605-32-4,Some common heterocyclic compound, 51605-32-4, name is Ethyl 5-methyl-1H-imidazole-4-carboxylate, molecular formula is C7H10N2O2, 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.

[2793] To a stirred solution of 994 (3.08 g, 20 mmol) in 15 ml of DMF at 0¡ã C. was added NaH (60percent in mineral oil, 0.80 g) portionwise. After stirring for several minutes, SEM-CI (3.54 ml, 20 mmol) was added and let the reaction stir overnight. Brine was added to the reaction and extracted with EtOAc. The organic layer was washed with water and brine, dried with MgSO4, filtered and concentrated under vacuum. Purified by flash elute column chromatography (CH2Cl2/MeOH, 50:1 to 20:1) to afford 4.54 g of yellow oil, compound 995.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route Ethyl 5-methyl-1H-imidazole-4-carboxylate, its application will become more common.

Reference:
Patent; Schering Corporation; US2004/122018; (2004); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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 51605-32-4 as follows. Recommanded Product: Ethyl 5-methyl-1H-imidazole-4-carboxylate

A. To a stirred suspension of ethyl 4-methyl-1H-imidazole-5-carboxylate (2.00 g, 13.0 mmol) in acetonitrile (25 mL) and chloroform (25 mL) was added N-bromosuccinimide (2.31 g, 13.0 mmol). The reaction mixture was stirred under nitrogen atmosphere for 20 h, then concentrated in vacuo. The residue was dissolved in ethyl acetate (100 mL) and washed with saturated aqueous sodium bicarbonate (50 mL). The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by column chromatography eluding with 50percent ethyl acetate in hexanes to afford ethyl 2-bromo-4-methyl-1H-imidazole-5-carboxylate as a light yellow solid (1.88 g, 62percent): 1H NMR (300 MHz, CDCl3) delta 4.35 (q, J=7.1 Hz, 2H), 2.51 (s, 3H), 1.37 (t, J=7.1 Hz, 3H); MS (ES+) m/z 233.1 (M+1), 235.1 (M+1).

According to the analysis of related databases, 51605-32-4, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Dales, Natalie; Fonarev, Julia; Fu, Jianmin; Hou, Duanjie; Kamboj, Rajender; Kodumuru, Vishnumurthy; Pokrovskaia, Natalia; Raina, Vandna; Sun, Shaoyi; Zhang, Zaihui; US2009/156615; (2009); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem