4-Bromo-1,3-dihydro-benzoimidazol-2-one

Base Information

• Chemical Name: 4-Bromo-1,3-dihydro-benzoimidazol-2-one
• CAS No.: 40644-16-4
• Molecular Formula: C7H5BrN2O
• Molecular Weight: 213.033
• Mol file: 40644-16-4.mol

Synonyms:4-bromo-1,2-dimethyl-5-quinoxalin-6-yl-1,2-dihydro-pyrazol-3-one;4-bromo-1,3-dihydro-benzoimidazol-2-one;

Chemical Property of 4-Bromo-1,3-dihydro-benzoimidazol-2-one

Chemical Property:

• Boiling Point: 179.5±19.0 °C(Predicted)
• PKA: 11.12±0.30(Predicted)
• PSA: 48.91000
• Density: 1.728±0.06 g/cm3(Predicted)
• LogP: 2.03100
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature

Purity/Quality:

97% ^*data from raw suppliers

4-bromo-1,3-dihydro-2H-benzimidazol-2-one ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 4-Bromo-1,3-dihydro-benzoimidazol-2-one

There total 5 articles about 4-Bromo-1,3-dihydro-benzoimidazol-2-one 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: 76.0%

bis(trichloromethyl) carbonate (32315-10-9) + 3-bromobenzene-1,2-diamine (1575-36-6) → 4‐bromo‐1,3‐dihydrobenzoimidazol‐2‐one (40644-16-4)

Guidance literature:

With triethylamine; In tetrahydrofuran; at 50 ℃;

Reference yield: 71.0%

3-bromobenzene-1,2-diamine (1575-36-6) + 1,1'-carbonyldiimidazole (530-62-1) → 4‐bromo‐1,3‐dihydrobenzoimidazol‐2‐one (40644-16-4)

Guidance literature:

In tetrahydrofuran; at 50 ℃;

DOI:10.3390/molecules26020391

Reference yield:

3-bromo-2-nitrophenylamine (7138-15-0) → 4‐bromo‐1,3‐dihydrobenzoimidazol‐2‐one (40644-16-4)

Guidance literature:

Multi-step reaction with 2 steps

1: iron; acetic acid / methanol / 0 - 20 °C

2: tetrahydrofuran / 20 °C

With iron; acetic acid; In tetrahydrofuran; methanol;

upstream raw materials:

bis(trichloromethyl) carbonate

3-bromobenzene-1,2-diamine

1,1'-carbonyldiimidazole

3-bromo-2-nitrophenylamine

Downstream raw materials:

4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3-dihydro-benzoimidazol-2-one

N,N-dimethyl-3-(3-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-4-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidin-7-yl)benzenesulfonamide