Category: 13275-42-8

Application of 13275-42-8, The chemical industry reduces the impact on the environment during synthesis 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, I believe this compound will play a more active role in future production and life.

General procedure: An oven-dried Schlenk tube equipped with a Teflon valve was charged with a magnetic stir bar, Cu(OAc)2 (18 mg, 0.1 mmol, 20 mol%), NaOEt (68 mg, 1.0 mmol), 1,10-phenanthroline monohydrate (40 mg, 0.2 mmol, 40 mol%), 2-(2-bromophenyl)-1H-benzo[d]imidazole 4 (0.5 mmol), and N-heterocycle 2 (0.5 mmol). The Schlenk tube was evacuated and backfilled with O2 (this procedure was repeated three times). Under a counter flow of O2, DMF (2.0 mL) was added using a syringe. The reaction mixture was stirred at 140 C for 24 h. After the reaction was completed, the mixture was extracted with dichloromethane (3 × 15 mL), and then the organic layer was washed with brine (3 × 10 mL) and dried over anhydrous Na2SO4. Subsequently, the solvent was removed, and the product was purified by column chromatography on silica gel using a mixture of dichloromethane and methanol as the eluent, affording the pure products

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, 2-(2-Bromophenyl)-1H-benzo[d]imidazole, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Chen, Dingben; Huang, Ling; Yang, Jianguo; Ma, Junna; Zheng, Yingying; Luo, Yi; Shen, Yang; Wu, Jiashou; Feng, Chao; Lv, Xin; Tetrahedron Letters; vol. 59; 21; (2018); p. 2005 – 2009;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 13275-42-8, 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. 13275-42-8 name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, This 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.

General procedure: 2-(2-Bromophenyl)benzimidazole (1 mmol), substituted aldehyde (1.2 mmol), NaN3 (1.8 mmol), Cu (10mol%), L-proline (20 mol%), and Cs2CO3 (1 mmol) were added to DMF in a 50 mL round bottom flask, and then the mixture was refluxed at 80 C for 16 h under nitrogen atmosphere. TLC was monitored the reaction till completed, and then the reaction mixture was cooled to room temperature. The mixture was poured into the dichloromethane, washed with brine and water. The organic layer was concentrated with evaporator, and the residue was purified by column chromatography on silica gel to give the target compound (A-4 to A-37).

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-(2-Bromophenyl)-1H-benzo[d]imidazole, and friends who are interested can also refer to it.

Reference:
Article; Li, Jun-cai; Wang, Ren-xuan; Sun, Yu; Zhu, Jia-kai; Hu, Guan-fang; Wang, Yu-ling; Zhou, Rui; Zhao, Zhong-min; Liu, Ying-qian; Peng, Jing-wen; Yan, Yin-fang; Shang, Xiao-fei; Bioorganic Chemistry; vol. 92; (2019);,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adding a certain compound to certain chemical reactions, such as: 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]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 13275-42-8, Quality Control of 2-(2-Bromophenyl)-1H-benzo[d]imidazole

Take a quartz reaction tube, add a magnetic stirrer thereto, and then add 0.3 mmol of 2-(2-bromophenyl)benzimidazole (CAS No. 13275-42-8).0.9 mmol of lithium t-butoxide (t-BuOLi), 20 mmol% of cuprous iodide (CuI), N,N-dimethylformamide (DMF) 1 mL, acetonitrile (CH3CN) 1 mL, and finally 0.6 mmol of benzyl amine. Then add a three-way air guide head with a balloon above the quartz reaction tube.First, the reaction liquid is frozen with liquid nitrogen, and then the quartz reaction tube is evacuated by an oil pump, and then the balloon is filled with nitrogen;Under the stirring of magnetic stirrer, the reaction was carried out under nitrogen conditions and ultraviolet light of 254 nm for 12 hours.Then, it was reacted under air conditions and ultraviolet light of 254 nm for 24 hours, and the reaction was completed.The final product was detected by TLC, and finally the final product, 6-phenylbenzimidazole [1,2-c]quinazoline, was isolated by column chromatography, yield 90%.

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; Henan University; Xu Hao; Liu Yawei; Xu Jing; Wang Yanpeng; Ren Yanrong; Liu Baoying; Zhang Wenkai; Xu Yuanqing; Fang Xiaomin; Ding Tao; (10 pag.)CN108610345; (2018); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 13275-42-8, A common heterocyclic compound, 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, molecular formula is C13H9BrN2, 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: Equimolar quantity of 2-(2-bromophenyl)-1H-benzo[d] imidazole (2) and aniline derivatives in 45 ml of 1,4-dioxan was refluxed for 14 hr with continuous stirring at 80. The completion of reaction was checked by TLC. The reaction mixture was kept overnight in a refrigerator. The solvent was evaporated and a gummy solid mass was obtained. The gummy solid was then washed with cold water and recrystallized from ethanol and water (4:6) to obtain the compounds (3a-3h).

The synthetic route of 13275-42-8 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Singh, Aruna Chandra; Mittal, Nitin; Pathak, Devender; Indian Journal of Heterocyclic Chemistry; vol. 23; 3; (2014); p. 225 – 232;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 13275-42-8, A common heterocyclic compound, 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, molecular formula is C13H9BrN2, 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: Equimolar quantity of 2-(2-bromophenyl)-1H-benzo[d] imidazole (2) and aniline derivatives in 45 ml of 1,4-dioxan was refluxed for 14 hr with continuous stirring at 80. The completion of reaction was checked by TLC. The reaction mixture was kept overnight in a refrigerator. The solvent was evaporated and a gummy solid mass was obtained. The gummy solid was then washed with cold water and recrystallized from ethanol and water (4:6) to obtain the compounds (3a-3h).

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.

Some common heterocyclic compound, 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, molecular formula is C13H9BrN2, 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. SDS of cas: 13275-42-8

General procedure: 2-(2-Bromophenyl)benzimidazole (2 mmol), guanidine hydrochloride (3 mmol), CuI (5 mol%) and potassium phosphate (6 mmol) were added to DMF in a 50 mL round bottom flask, and refluxed at 100 C for 16 h under nitrogen atmosphere. The reaction was detected by TLC. After the reaction was completed, cooled to room temperature. Then 50 mL of dichloromethane was added and washed by brine. The organic layer was concentrated with evaporator, and the residue was purified by column chromatography on silica gel to give the target compound (A-1 to A-3).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 13275-42-8, its application will become more common.

Synthetic Route of 13275-42-8, 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. 13275-42-8 name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, This 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.

General procedure: To a 5mL screw-capped vial was added 1 (0.3mmol) and 1,3-diketone 2 (0.45mmol), together with CuI (0.006g, 0.03mmol), K3PO4 (0.127g, 0.6mmol), and DMF (3mL). The mixture was stirred at 130C for 24h. The mixture was then cooled to room temperature, and filtered through a short column of silica gel (ethyl acetate) to remove inorganic salts. Removal of the solvent left a crude mixture, which was separated by TLC [silica gel 60 GF254 (Merck), ethyl acetate-hexane (the reaction with acyclic ketones) or dichloromethane-methanol (the reaction with cyclic ketones)] to give desired products 3. Except for known 3o [11h], 3q [11c], 3s [11b] and 3t [10a], all new products prepared by the above procedure were characterized spectroscopically as shown below. Similar treatment of 6 with 2a and work-up (TLC, CH2Cl2/MeOH=99/1) shown above gives 7 in 56% yield.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-(2-Bromophenyl)-1H-benzo[d]imidazole, and friends who are interested can also refer to it.

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 13275-42-8 as follows. Recommanded Product: 2-(2-Bromophenyl)-1H-benzo[d]imidazole

General procedure: Equimolar quantity of 2-(2-bromophenyl)-1H-benzo[d] imidazole (2) and aniline derivatives in 45 ml of 1,4-dioxan was refluxed for 14 hr with continuous stirring at 80. The completion of reaction was checked by TLC. The reaction mixture was kept overnight in a refrigerator. The solvent was evaporated and a gummy solid mass was obtained. The gummy solid was then washed with cold water and recrystallized from ethanol and water (4:6) to obtain the compounds (3a-3h).

According to the analysis of related databases, 13275-42-8, the application of this compound in the production field has become more and more popular.

Reference:
Article; Singh, Aruna Chandra; Mittal, Nitin; Pathak, Devender; Indian Journal of Heterocyclic Chemistry; vol. 23; 3; (2014); p. 225 – 232;,
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. 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, A new synthetic method of this compound is introduced below., Safety of 2-(2-Bromophenyl)-1H-benzo[d]imidazole

General procedure: First, 100 mmol of 2-(2-bromophenyl)imidazole derivatives introduced into 300 ml of triethylamine and 200 ml of DMF. And stirring continuously added to 200 ml alkyne, 5 mmol triphenylphosphine and 5 mmol of copper iodide (I) and 2 mmol palladium(II) acetate. The reaction mixture was then stirred for 20 hours at 80 . After cooling, the reaction mixture was diluted with 400 ml of methylene chloride, to separate a solid, by filtration through a bed of salt C and the filtrate was evaporated to dryness. The residue was dissolved in 300 ml of methylene chloride, 100 ml of concentrated aqueous ammonia with individual cleaning solution three times, and then washed three times with 100 ml of water, and dried over magnesium sulfate. With spherical fractionating tube distillation or sublimation, resulting in the manipulation of the vacuum pump oil / solids release low-boiling components and trace metals.

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; MERCK PATENT GMBH; STOESSEL, PHILIPP; HEIL, HOLGER; JOOSTEN, DOMINIK; PFLUMM, CHRISTOF; GERHARD, ANJA; BREUNING, ESTHER; (214 pag.)TWI520958; (2016); B;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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. 13275-42-8, name is 2-(2-Bromophenyl)-1H-benzo[d]imidazole, This compound has unique chemical properties. The synthetic route is as follows., HPLC of Formula: C13H9BrN2

General procedure: 2-(2-Bromophenyl)benzimidazole (1 mmol), substituted aldehyde (1.2 mmol), NaN3 (1.8 mmol), Cu (10mol%), L-proline (20 mol%), and Cs2CO3 (1 mmol) were added to DMF in a 50 mL round bottom flask, and then the mixture was refluxed at 80 C for 16 h under nitrogen atmosphere. TLC was monitored the reaction till completed, and then the reaction mixture was cooled to room temperature. The mixture was poured into the dichloromethane, washed with brine and water. The organic layer was concentrated with evaporator, and the residue was purified by column chromatography on silica gel to give the target compound (A-4 to A-37).

According to the analysis of related databases, 13275-42-8, the application of this compound in the production field has become more and more popular.

Reference:
Article; Li, Jun-cai; Wang, Ren-xuan; Sun, Yu; Zhu, Jia-kai; Hu, Guan-fang; Wang, Yu-ling; Zhou, Rui; Zhao, Zhong-min; Liu, Ying-qian; Peng, Jing-wen; Yan, Yin-fang; Shang, Xiao-fei; Bioorganic Chemistry; vol. 92; (2019);,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem