Author: Jessica.F

Application of 2302-25-2, 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 2302-25-2 as follows.

Palladium on carbon (2 g, 10% Pd)Stirring in hydrogen for one hour,And then dissolved in pure heavy water (50 g, 2.5 mol) Of 4-bromoimidazole (10 g, 69 mmol) was added,After hydrogen addition, the mixture was stirred at 100 C for 1 h,The reaction solution was filtered to remove the catalyst,Rotate the solvent to give compound 11 (9.2 g, yield 91%),

According to the analysis of related databases, 2302-25-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Hinova Pharmaceuticals Inc.; Fan, Lei; Chen, Ke; Li, Xinghai; Chen, Yuanwei; (24 pag.)CN106256830; (2016); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthetic Route of 137049-00-4, A common heterocyclic compound, 137049-00-4, name is 1-Methyl-1H-imidazole-4-sulfonyl chloride, molecular formula is C4H5ClN2O2S, 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 4A: To a stirred solution of (3i?)-l-[4-fluoro-2-(trifluoromethyl)phenyl]-3- methylpiperazine (1.038 g, 3.96 mmol) and diisopropylethylamine (1.38 rnL, 7.92 mmol) in anhydrous dichloromethane (15 rnL) was added 1 -methyl- lEta-imidazole-4-sulfonyl chloride (0.715 g, 3.96 mmol) at O0C. The mixture was stirred at O0C for 30 min, then stirred at room temperature for o/n. The reaction mixture was washed with H2O, extracted with DCM. The organic layer was dried over Na2SO4 and concentrated. The crude product was purified via flash column chromatography, eluting with 2-4% MeOH/DCM to yield (2i?)-4-[4-fluoro-2-(trifluoromethyl)phenyl]-2-methyl-l-[(l- methyl-lH-imidazol-4-yl)sulfonyl]piperazine as a light yellow solid (1.22 g, 75.8% yield).

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

Reference:
Patent; WYETH LLC; WAN, Zhao-Kui; CHENAIL, Eva; IPEK, Manus; LI, Huan-Qiu; MANSOUR, Tarek, Suhayl; SURI, Vipin; XIANG, Jason, Shaoyun; SAIAH, Eddine; WO2010/141550; (2010); A2;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 4887-80-3, 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 4887-80-3 as follows.

5 g of methoxybenzimidazole (44.5 mg, 0.3 mmol), NaHCO3 (12.6 mg, 50 mol%), NFSI (142 mg, 1.5 equiv.) Were added to 2.0 mL of acetonitrile and the reaction was stopped for 12 h at 70 C , Column chromatography (silica gel column; eluent: petroleum ether / ethyl acetate = 25/2) to give 2 g of sulfonylated 5-methoxybenzimidazole. The product was a white solid in 67% yield

According to the analysis of related databases, 4887-80-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Nanchang University; Guo Shengmei; Jie Kun; Cai Hu; (12 pag.)CN107501194; (2017); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 288-32-4, 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. 288-32-4, name is 1H-Imidazole belongs to imidazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.

General procedure: Compounds 1-18 were synthesized using the following generalprocedure reported by Salvio et al. [41]. A mixture of potassium carbonate(2.0 g, 14.4 mmol), imidazole derivatives 27-28 (32.9 mmol)and compounds 29-37 (4.7 mmol) in dry acetonitrile (50 ml) was heatedunder reflux and the progress of the reaction was monitored byTLC. Then the solvent was evaporated under the vacuum and the residuewas dissolved in DCM (100 ml) *. The organic layer was washedwith saturated sodium bicarbonate aqueous solution (2×50 ml),passed through diatomaceous earth, dried over sodium sulfate, evaporatedunder the vacuum, and purified by flash column chromatography(ethyl acetate-hexane 0-100%)** to give the products 1-18.*Note 1: Ethyl acetate (200 ml) was used for compounds 17 and 18.**Note 2: Compounds 17 and 18 (ethyl acetate-methanol 0-100%).

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

Reference:
Article; Khalili Arjomandi, Omid; Kavoosi, Mahboubeh; Adibi, Hadi; Bioorganic Chemistry; vol. 92; (2019);,
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. 37148-86-0, name is 4-(4-(Trifluoromethyl)phenyl)-1H-imidazole, A new synthetic method of this compound is introduced below., Application In Synthesis of 4-(4-(Trifluoromethyl)phenyl)-1H-imidazole

Example 11 : Preparation of 4-[4-(4-trifluoromethylphenyl)-lH-imidazol-l-yl]-benzonitrile.4-Trifluoromethylphenyl imidazole (4.0 g, 19 mmol), 4-fluorobenzonitrile (1.2 g, 8.5 mmol) and potassium carbonate (1.5 g, 10.9 mmol) were combined in DMSO (15 mL) and heated at 100 0C for 6 h. The cooled solution was then poured onto water (100 mL), and the resulting solid was filtered and air-dried to give the imidazole nitrile (4.65 g) as a white solid: mp 252 0C; 1H NMR (300 MHz, CDCl3) delta 8.05 (s, IH), 7.95 (d, J= 8 Hz, 2H), 7.85 (d, 2 H), 7.72 (s, IH), 7.72 (d, J= 8 Hz, 2 H), 7.62 (d, J= 8 Hz, 2H); ESIMS m/z 314.1 (M+H). Anal. Calcd. for Ci6Hi0F3N3O2: C, 65.18; H, 3.22; N, 13.41. Found: C, 64.49; H, 3.23; N, 13.08.

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; DOW AGROSCIENCES LLC; LAMBERT, William; CROUSE, Gary; SPARKS, Thomas; CUDWORTH, Denise; WO2011/17513; (2011); 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. 934-32-7, name is 1H-Benzo[d]imidazol-2-amine, A new synthetic method of this compound is introduced below., SDS of cas: 934-32-7

General procedure: A mixture of ethyl acetoacetate and/or acetylacetone (1 mmol) or malononitrile(1.1 mmol), 2-aminobenzimidazole (1 mmol), aldehyde (1 mmol) and [PVPH]ClO (30 mg, 6.84 mol %) was heated at 100 C in an oil bath for the appropriate time.After completion of the reaction [monitored by thin layer chromatography (TLC): nhexane:ethyl acetate (3:1)], the reaction mixture was cooled to room temperatureand EtOH (5 mL) was added to it and filtered to separate the catalyst. Afterevaporation of the solvent from the filtrate, the crude solid product wasrecrystallized from ethanol to obtain pure A or B products.The spectral [IR, proton ( 1H) NMR and 13C NMR] data of new compounds arepresented below.

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:
Article; Abedini, Masoumeh; Shirini, Farhad; Mousapour, Maryam; Goli Jolodar, Omid; Research on Chemical Intermediates; vol. 42; 7; (2016); p. 6221 – 6229;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 41716-18-1,Some common heterocyclic compound, 41716-18-1, name is 1-Methyl-1H-imidazole-4-carboxylic acid, molecular formula is C5H6N2O2, 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.

The complex 1 was obtained during attempted 1:2CuSO4.5H2O and L1H in methanol/water (2:1 v/v) solution atroom temperature under continuous stirring. After stirring for20 min, the solution that resulted from the mixture was filteredoff and allowed to evaporate at room temperature. Blue blockcrystals of 1 formed in about 5 days. Elemental analysis for 1,Anal. Calcd. (percent): C, 31.13; H, 4.70; N, 14.52. Found: C, 31.17;H, 4.73; N, 14.59.

The synthetic route of 41716-18-1 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Yang, Li-Jing; Song, Wen-Tao; Luo, Yang-Hui; Sun, Bai-Wang; Inorganic and Nano-Metal Chemistry; vol. 47; 4; (2017); p. 493 – 499;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Application of 16681-56-4, 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. 16681-56-4, name is 2-Bromo-1H-imidazole belongs to imidazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.

To 7.3 g (50 mmol) of 2-bromo-1H-imidazole, 11.1 g of 9-anthracene boronic acid(50 mmol) and 3.5 g (5 mmol) of bistriphenylphosphine palladium dichloride were added 130 ml of 2M aqueous sodium carbonate solution, 260 ml of methylBenzene and 86 ml of ethanol at 100 C for 12 hours. After the system had cooled down, extract with methylene chloride and wash with distilled waterThe organic phase is then washed with anhydrous magnesium sulfate and the solvent is evaporated to dryness. Column chromatography (n-hexane: dichloromethane = 20: 1)Purification gave 8.43 g of intermediate A-1.

The synthetic route of 2-Bromo-1H-imidazole has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Changchun Hai Purunsi Technology Co., Ltd.; Zhou Wenting; Cai Hui; (17 pag.)CN107383071; (2017); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 36947-68-9,Some common heterocyclic compound, 36947-68-9, name is 2-Isopropyl-1H-imidazole, molecular formula is C6H10N2, 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.

Preparation 20; 4-(2-isoPropyl-1H-imidazol-1-yl)piperidine; Methanesulphonyl chloride (0.27 mL, 3.4 mmol) was added dropwise to a stirring mixture of 1-tertbutoxycarbonyl-4-hydroxypiperidine (457 mg, 2.27 mmol) and triethylamine (0.95mL, 6.8 mmol) in dichloromethane (10 mL) at 0 C. under nitrogen. After 20 mins, the mixture was allowed to warm to room temperature and stirred for a further 30 mins. Water (10 mL) was added and the organic layer was separated and the solvent evaporated under reduced pressure. The residue was taken up in acetonitrile (10 mL) and 2-isopropylimidazole (250 mg, 2.27 mmol) and cesium carbonate (880 mg, 22.7 mmol) were added. The mixture was refluxed for 3 days and then allowed to cool. The mixture was filtered and the solvent was removed in vacuo. The residue was filtered through a silica plug using ethyl acetate and the solvent was removed under reduced pressure. The residue was dissolved in methanol (5 mL) and ethereal hydrogen chloride (5 mL of a 2N solution) was added. The mixture was stirred overnight, the solvent was removed in vacuo and the residue was chromatographed on silica gel using an elution gradient of dichloromethane to 94:6:0.6 dichloromethane:methanol:0.88 ammonia as eluant to afford the title compound as a white solid, 28 mg.LRMS: m/z APCI 194 [MH]+

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2-Isopropyl-1H-imidazole, its application will become more common.

Reference:
Patent; PFIZER INC; US2009/209578; (2009); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthetic Route of 25676-75-9, A common heterocyclic compound, 25676-75-9, name is 4-Bromo-1-methylimidazole, molecular formula is C4H5BrN2, 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.

Intrmdiate Example 11.5-(I-Methyl-1H-imidazol-4-yl)-1H-benzo[d]imidazolea) 4-(1-Methyl-1H-imidazol-4-yl)-2-nitroanilineA solution, of 2-nitro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline(1.45 g, 5.55 mmol, 1.1 eq) in 1 ,2-dimethoxyethane (15 ml) was degassed by N2bubbling for 5 mi 4-Bromo-1-methyi-1H-imidazole (0.81 g, 5 mmol, 1 eq) was added and the mixture was degassed for another 5 mm. Pd(dppf)Cl2 (0.4 g, 0.5 mmol, 0.1 eq) and aqueous sodiumcarbonate (1.59 g, 15 mmol, 3 eq) were added, sequentially using the procedure of Intermediate Example 1 and then heated at 100 C for 4 h. The reactionmixture was then quenched and extracted as in Intermediate Example 1. The solvent was distilled off to afford the crude residue which was purified by columnchromatography (60-120 silica gel, 50 % ethyl acetate in hexane) to afford the title product in 60 % yield (0.6 g). LC-MS (ESI): Calculated mass: 218.08; Observed mass:219.2 [M+HJ (rt: 0.09 mm).

The synthetic route of 25676-75-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; ORION CORPORATION; RAJAGOPALAN, Srinivasan; APPUKUTTAN, Prasad; NARASINGAPURAM ARUMUGAM, Karthikeyan; UJJINAMATADA, Ravi Kotrabasaiah; GEORGE, Shyla; LINNANEN, Tero; WO2014/162039; (2014); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem