Category: imidazoles-derivatives

Related Products of 872-49-1, 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. 872-49-1, name is 5-Chloro-1-methylimidazole belongs to imidazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.

EXAMPLE IV 4-Chloro-1,3-dimethyl-2-[(2-oxopropyl)thio]-1H-imidazolium chloride STR60 The starting material, 4-chloro-1,3-dimethylimidazoline-2-thione was first prepared by adding dropwise and intimately admixing 5.68 grams (0.04 mol) of methyl iodide to a solution of 4.0 grams (0.0343 mol) of 5-chloro-1-methylimidazole in 25 milliliters of methylene chloride. The resulting mixture was stirred overnight at room temperature whereupon a crystalline product was found to have formed.

The synthetic route of 5-Chloro-1-methylimidazole has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Merck & Co., Inc.; US5030644; (1991); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application of 96797-15-8, 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 96797-15-8 as follows.

A. 5-imidazol-4-yl-2-methoxypyridine. To a solution of 4-IODO-1- TRITYL-LH-IMIDAZOLE (25 g, 57.2 mmoles) in THF (150 ml) at room temperature was added ethylmagnesium bromide (69 ml, 68.7 mmoles) under dry conditions. After stirring for 90 minutes, zinc chloride (9.4 g, 68.6 mmoles) was added to the reaction mixture. After stirring for another 90 minutes, tetrakis (triphenylphosphine) palladium (6.6 g, 5.72 mmoles) and 5-BROMO-2-METHOXYPYRIDINE (8.9 ml, 68.7 mmoles) were added to the reaction mixture. Following that, the reaction mixture was heated in a 70C oil bath overnight. Upon cooling, the reaction was diluted with dichloromethane (500 ml) and washed with a 30% NaOH solution containing an added 20 g of EDTA (3x 200 ml), with NACI (sat. ) (200 ml), dried over MGS04, filtered, and concentrated. To the crude material was added dichloromethane (200 ml) and trifluoroactetic acid (40 ml, 410 mmoles). After standing for 6 hours, the reaction was concentrated and pumped on overnight. The crude material was purified by flash chromatography using 0-5% MEOH/CH2CL2 with 0.1% triethylamine yielding 5-imidazol-4-yl-2- methoxypyridine (7. 0g, 70%). MH+ (176)

According to the analysis of related databases, 96797-15-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; CHIRON CORPORATION; WO2004/96822; (2004); A2;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adding a certain compound to certain chemical reactions, such as: 57090-88-7, name is 1H-Imidazole-4-carbonitrile, 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 57090-88-7, Safety of 1H-Imidazole-4-carbonitrile

General procedure: A solution of 4-cyano-1H-imidazole (1000 mg, 10.74 mmol), 4-iodo -2-(trifluoromethyl)pyridine (3800 mg,14 mmol), (1R,2R)-N1,N2-dimethyl cyclohexane -1,2-diamine (150 mg, 1.07 mmol), CuI (200 mg, 1.07 mmol) and Cs2CO3 (7000 mg, 21.5 mmol) in 20 mL anhydrous DMF was stirred at 100 oC for 2 hours. The reaction mixture was cooled to room temperature and poured into 200 mL water. The mixture was extracted with ethyl acetate (80 mL*3). The organic layer were combined, washed by brine, dried by Na2SO4 and evaporated. The crude product was purified by silica flash column to afford compound 2 as white solid(1.5 g, 59percent yield).

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1H-Imidazole-4-carbonitrile, and friends who are interested can also refer to it.

Reference:
Article; Zheng, Qiangang; Chen, Ziqi; Wan, Huixin; Tang, Shuai; Ye, Yan; Xu, Yuan; Jiang, Lei; Ding, Jian; Geng, Meiyu; Huang, Min; Huang, Ying; Bioorganic and Medicinal Chemistry Letters; vol. 28; 23-24; (2018); p. 3808 – 3812;,
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 6160-65-2 as follows. name: 1,1′-Thiocarbonyldiimidazole

To a stirred solution of 1-Z-piperazine (8.5 g, 38.5 mmol) in dry THE (100 mL), 1,1- thiocarbonyldimidazole (12.37 g, 69.4 mmol) was added and the mixture was stirred at 60C for 5 h. It was concentrated under vacuum and NH3 in EtCH (2 N, 300 mL) was added at 0C. The resulting mixture was stirred at 55C for 8 h in an autoclave. It was diluted withwater (100 mL) and extracted with DCM (2 x 100 mL). The DCM layer was washed with water (100 mL), dried over in anhydrous Na2SO4 and concentrated. The resulting crude product was purified by flash chromatography to afford the title product. Yield: 87% (7 g, white solid). 1H NMR (400 MHz, DMSO-d6): 6 7.51 (5, 2H), 7.38-7.31 (m, 5H), 5.1 (5, 2H), 3.78 (m, 4H), 3.43-3.33 (m, 4H). LCMS: (Method A) 280.2 (M+H), Rt. 2.33 mm, 95.4% (Max).

According to the analysis of related databases, 6160-65-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ASCENEURON S. A.; QUATTROPANI, Anna; KULKARNI, Santosh, S.; GIRI, Awadut, Gajendra; (280 pag.)WO2017/144633; (2017); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adding a certain compound to certain chemical reactions, such as: 96797-15-8, name is 4-Iodo-1-trityl-1H-imidazole, 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 96797-15-8, Recommanded Product: 4-Iodo-1-trityl-1H-imidazole

4-iodo-1-trityl-1H-imidazole (38.7 g, 88.8 mmol), (2-formylphenyl)boronic acid (20.0 g, 133 mmol)And K3PO4 (56.4 g, 266 mmol) was dissolved in 1,4-dioxane (300 mL) and water (60 mL).Nitrogen gas was bubbled through the reaction solution for 5 min, then Pd(PPh3)4 (5.12 g, 4.44 mmol) was added, and the reaction mixture was bubbled with nitrogen for 5 min.The reaction was heated at 90 C for 16 h under nitrogen.After the reaction was completed, the temperature was lowered, and the celite was filtered, and the filtrate was diluted with water (100 mL) and EA (300 mL), and the mixture was allowed to stand for separation. The aqueous phase was extracted with EA (300 mL×2; combined organic phase, water (100 mL) and saturated brine (100 mL × 3) washing.The organic phase was concentrated under reduced pressure to give a residue.Purified with PE/EA=3/1 column,Obtained a light brown viscous oil 2-(1-Trityl-1H-imidazol-4-yl)benzaldehyde (15.0 g, 40.8%).

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; Shenzhen Weixin Biological Technology Co., Ltd.; Yu Jindi; Lu Xianping; Li Zhibin; Xin Lijun; Zhu Jiangfei; Fu Chao; (67 pag.)CN108203438; (2018); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Electric Literature of 15965-31-8,Some common heterocyclic compound, 15965-31-8, name is 5-Chloro-1H-imidazole, molecular formula is C3H3ClN2, 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.

Synthesis of 4-chloro-1-(2-methoxy-4-nitrophenyl)-1H-imidazole To a stirred solution of 1-chloro-2-methoxy-4-nitrobenzene (4 g, 39.21 mmol) in DMSO (40 mL) under an argon atmosphere were added 4-chloro-1H-imidazole (7.3 g, 39.21 mmol) and potassium hydroxide (2.2 g, 39.21 mmol) at RT. The reaction mixture was stirred at 80 C. for 20 h. After consumption of the starting material (monitored by TLC), the reaction was diluted with water (600 mL), filtered, washed with water (2*50 mL) and dried in vacuo to afford 4-chloro-1-(2-methoxy-4-nitrophenyl)-1H-imidazole (3.8 g, 70%) as a brown solid which was used without further purification. 1H-NMR (CDCl3, 400 MHz): delta 7.98-7.94 (m, 2H), 7.75 (s, 1H), 7.44 (d, 1H), 7.19 (s, 1H), 4.01 (s, 3H); LC-MS: 254.1 (M+1); (column; X-Bridge C-18 (50*3.0 mm, 3.5 lam); RT 3.05 min. 0.05% aq TFA: ACN; 0.80 mL/min); TLC: 30% EtOAc:hexanes (Rf: 0.5).

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

Reference:
Patent; FORUM Pharmaceuticals Inc.; Burnett, Duane A.; Bursavich, Matthew Gregory; McRiner, Andrew J.; (484 pag.)US2017/44182; (2017); 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. 39513-26-3, name is 5-Bromo-1,3-dihydrobenzoimidazol-2-one belongs to imidazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Safety of 5-Bromo-1,3-dihydrobenzoimidazol-2-one

General procedure: To a solution of 5-bromo-lH-benzo[d]imidazol-2(3H)-one80 (50 mg) in dioxane (1 ml) were added pyridin-3-ylboronic acid 81 (43.3 mg), [l,l-bis(diphenyl- phosphino)ferrocene]dichloropalladium(II) (17.2 mg) and 2 M aq. sodium carbonate solution (235 mu). The reaction mixture was heated at 100 C for 18 hours. The reaction mixture was then cooled to room temperature, diluted with water (50 ml), and extracted twice with ethyl acetate (2 x 30ml). The combined organic layers were dried over Na2S04, filtered and concentrated in vacuo. The residue was purified by chromatography (silica gel; 12 g; eluent: dichloromethane/methanol = 100/0 to 95/05 in 10 minutes) to afford 5-(pyridin-3-yl)-lH- benzo[d]imidazol-2(3H)-one (12 mg, 23%) as a red solid. MS (ISP): 212.1 ([M+H]+).

The synthetic route of 39513-26-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; GOERGLER, Annick; NORCROSS, Roger; DEY, Fabian; KUSZNIR, Eric Andre; (206 pag.)WO2019/43217; (2019); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 41806-40-0, name is 1-Methylimidazole-5-carboxylic Acid, A new synthetic method of this compound is introduced below., Computed Properties of C5H6N2O2

EXAMPLE 14 3-Methyl-3H-imidazole-4-carboxylic acid (7-[1,4]dioxepan-6-yl-4-methoxy-benzothiazol-2-yl)-amide Using 7-[1,4]dioxepan-6-yl-4-methoxy-benzothiazol-2-ylamine and 3-methyl-3H-imidazole-4-carboxylic acid, the title compound was prepared. MS: m/e=389(M+H+).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; Flohr, Alexander; Jakob-Roetne, Roland; Norcross, Roger David; Riemer, Claus; US2004/235915; (2004); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application of 137049-00-4, These common heterocyclic compound, 137049-00-4, name is 1-Methyl-1H-imidazole-4-sulfonyl chloride, 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.

General procedure: To an 93 (R)-N-methyl-N-(pyrrolidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine 5aa (70.0mg, 0.322mmol) solution in 1.00mL of 119 dichloromethane in a 5mL round-bottom flask, 151 methanesulfonyl chloride (36.9mg, 0.322mmol) and 121 N,N-diisopropylethylamine (0.0590mL, 0.339mmol) were added. Then, the reaction solution was stirred at room temperature overnight before being concentrated under reduced pressure. The residue was purified by flash column chromatography (methanol: dichloromethane=2:98).

The synthetic route of 137049-00-4 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Chough, Chieyeon; Joung, Misuk; Lee, Sunmin; Lee, Jaemin; Kim, Jong Hoon; Kim, B. Moon; Bioorganic and Medicinal Chemistry; vol. 26; 8; (2018); p. 1495 – 1510;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adding a certain compound to certain chemical reactions, such as: 2302-25-2, name is 4-Bromo-1H-imidazole, 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 2302-25-2, HPLC of Formula: C3H3BrN2

To a solution of 4-bromo- l /-imidazole (1.00 g, 6.80 mol) in dry DMF (10 mL) was added solid potassium carbonate (1.13 g; 8.16 mmol; 1.20 eq). After stirring 40min at room temperature, a solution of allyl bromide (882 mg; 7.14 mmol; 1.05 eq) in dry DMF (10 mL) was added dropwise. The resulting mixture was stirred at room temperature for 6h. Thereafter the reaction mixture was diluted with water, extracted with ethyl _ _ acetate, the combined organic layers were dried (MgSO i) and concentrated in vacuo. The oily residue was purified by chromatography over silica gel, eluted with a mixture of w-heptane/ethyl acetate (100:0 to 80:20). After evaporation of the solvent 892 mg (63%) of a mixture comprising 90 mol% l-allyl-4-bromo-imidazole and 10 mol% of its 5-bromo regioisomer were obtained as pale yellow oil. MS (EI): 187.0 ([M]+)

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; BAYER CROPSCIENCE AKTIENGESELLSCHAFT; BAYER AKTIENGESELLSCHAFT; COQUERON, Pierre-Yves; BERNIER, David; GENIX, Pierre; MILLER, Ricarda; NAUD, Sebastien; WITTROCK, Sven; BRUNET, Stephane; KENNEL, Philippe; MEISSNER, Ruth; WACHENDORFF-NEUMANN, Ulrike; GOeRTZ, Andreas; (104 pag.)WO2018/60088; (2018); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem