5-FLUORO-1H-BENZIMIDAZOLE

Base Information

• Chemical Name: 5-FLUORO-1H-BENZIMIDAZOLE
• CAS No.: 1977-72-6
• Molecular Formula: C7H5FN2
• Molecular Weight: 136.129
• Hs Code.: 2933990090
• Mol file: 1977-72-6.mol

Synonyms:1H-Benzimidazole,5-fluoro- (9CI);Benzimidazole, 5(or 6)-fluoro- (6CI,7CI);Benzimidazole,5-fluoro- (8CI);5-Fluoro-1H-benzimidazole;5-Fluorobenzimidazole;NSC 37361;

Chemical Property of 5-FLUORO-1H-BENZIMIDAZOLE

Chemical Property:

• Vapor Pressure: 3.68E-05mmHg at 25°C
• Melting Point: 132 °C
• Refractive Index: 1.658
• Boiling Point: 363.8 °C at 760 mmHg
• PKA: 11.69±0.30(Predicted)
• Flash Point: 173.8 °C
• PSA: 28.68000
• Density: 1.37 g/cm³
• LogP: 1.70200
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

99% ^*data from raw suppliers

5-Fluoro-1H-benzimidazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 41
• Safety Statements: 26-39

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 5-FLUORO-1H-BENZIMIDAZOLE

There total 33 articles about 5-FLUORO-1H-BENZIMIDAZOLE which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 94.0%

N-formylbenzamide (4252-31-7) + 4-fluoro-1,2-phenylenediamine (367-31-7) → 6-fluoro-1H-benzo[d]imidazole (1977-72-6)

Guidance literature:

With pyridinium p-toluenesulfonate; In tetrahydrofuran; at 50 ℃; for 9h; Inert atmosphere; Green chemistry;

DOI:10.1039/d0ob01080d

Reference yield: 93.0%

5-fluoro-2-nitroaniline (2369-11-1) + orthoformic acid triethyl ester (122-51-0) → 6-fluoro-1H-benzo[d]imidazole (1977-72-6)

Guidance literature:

With 10% Pd/C; hydrogen; acetic acid; In methanol; at 20 ℃; under 760.051 Torr;

DOI:10.3987/COM-08-11384

Reference yield: 91.0%

carbon dioxide (124-38-9,18923-20-1) + 4-fluoro-1,2-phenylenediamine (367-31-7) → 5-fluoro-1H-benzoimidazole (1977-72-6)

Guidance literature:

With bis[1,2-bis(diphenylphosphine)ethane]ruthenium dichloride; hydrogen; at 120 ℃; for 40h; under 112511 Torr; Green chemistry;

DOI:10.1039/c2gc36517k

upstream raw materials:

formic acid

4-fluoro-1,2-phenylenediamine

2-nitro-4-fluoroaniline

Ethoxymethylenemalononitrile

Downstream raw materials:

(5-fluoro-1H-benzimidazol-2-yl)-(4-trifluoromethoxyphenyl)methanol

5-fluoro-2-[isopropoxy(4-trifluoromethoxyphenyl)methyl]-1H-benzimidazole

2-[ethanesulfonyl(4-trifluoromethoxyphenyl)methyl]-5-fluoro-1H-benzimidazole

5-fluoro-2-[pyridin-3-yloxy(4-trifluoromethoxyphenyl)methyl]-1H-benzimidazole

Refernces

• 1、 Pu, Shuai,Liang, Qiuxiang,Luo, Xi,Luo, Juan. "Convenient two-step one-pot synthesis of benzimidazoles using 2-nitroanilines and thiourea dioxide". . p. 118 - 120. Retrieved 2014.
• 2、 Guo, Tao,He, Jianghua,Liu, Tianwei,Zhang, Yuetao. "One-Pot Transformation of Lignin and Lignin Model Compounds into Benzimidazoles". supporting information. . Retrieved 2022/02/07.
• 3、 Li, Hu,Li, Zhengyi,Wu, Hongguo,Yang, Song,Yu, Zhaozhuo,Zhang, Lilong,Zhu, Kaixun. "A substituent- And temperature-controllable NHC-derived zwitterionic catalyst enables CO2upgrading for high-efficiency construction of formamides and benzimidazoles". supporting information. p. 5759 - 5765. Retrieved 2021/08/23.