1H-Benzimidazole,5-chloro-4-nitro-(9CI)

Base Information

• Chemical Name: 1H-Benzimidazole,5-chloro-4-nitro-(9CI)
• CAS No.: 32046-86-9
• Molecular Formula: C₇H₄ClN₃O₂
• Molecular Weight: 197.581
• Mol file: 32046-86-9.mol

Synonyms:1H-Benzimidazole,5-chloro-4-nitro- (9CI); Benzimidazole, 5-chloro-4-nitro- (7CI,8CI)

Chemical Property of 1H-Benzimidazole,5-chloro-4-nitro-(9CI)

Chemical Property:

• PSA: 74.50000
• LogP: 2.64770

Purity/Quality:

99% ^*data from raw suppliers

6-Chloro-7-nitro-1H-benzo[d]imidazole 95% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1H-Benzimidazole,5-chloro-4-nitro-(9CI)

There total 5 articles about 1H-Benzimidazole,5-chloro-4-nitro-(9CI) 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: 72.0%

4-chloro-3-nitro-1,2-phenylenediamine (144729-44-2) + orthoformic acid triethyl ester (122-51-0) → 5-chloro-4-nitro-1(3)H-benzoimidazole (32046-86-9)

Guidance literature:

With toluene-4-sulfonic acid; In tetrahydrofuran; at 50 ℃; for 2h; Inert atmosphere;

DOI:10.1021/jm301847z

Reference yield:

4-Chloro-1,2-phenylenediamine (95-83-0) → 5-chloro-4-nitro-1(3)H-benzoimidazole (32046-86-9)

Guidance literature:

Multi-step reaction with 4 steps

1: selenium(IV) oxide / ethanol; water / 0.5 h / Inert atmosphere; Reflux

2: nitric acid; sulfuric acid / 0.83 h / Inert atmosphere; Cooling with ice

3: hydrogenchloride; hydrogen iodide; sodium hydroxide / water / pH 8 / Inert atmosphere; Cooling with ice

4: toluene-4-sulfonic acid / tetrahydrofuran / 2 h / 50 °C / Inert atmosphere

With hydrogenchloride; selenium(IV) oxide; sulfuric acid; hydrogen iodide; nitric acid; toluene-4-sulfonic acid; sodium hydroxide; In tetrahydrofuran; ethanol; water;

DOI:10.1021/jm301847z

Reference yield:

5-chloro-benzo[1,2,5]selenadiazole (1123-92-8,6343-86-8) → 5-chloro-4-nitro-1(3)H-benzoimidazole (32046-86-9)

Guidance literature:

Multi-step reaction with 3 steps

1: nitric acid; sulfuric acid / 0.83 h / Inert atmosphere; Cooling with ice

2: hydrogenchloride; hydrogen iodide; sodium hydroxide / water / pH 8 / Inert atmosphere; Cooling with ice

3: toluene-4-sulfonic acid / tetrahydrofuran / 2 h / 50 °C / Inert atmosphere

With hydrogenchloride; sulfuric acid; hydrogen iodide; nitric acid; toluene-4-sulfonic acid; sodium hydroxide; In tetrahydrofuran; water;

DOI:10.1021/jm301847z

upstream raw materials:

4-chloro-3-nitro-1,2-phenylenediamine

orthoformic acid triethyl ester

4-Chloro-1,2-phenylenediamine

5-chloro-benzo[1,2,5]selenadiazole

Downstream raw materials:

C₁₃H₈ClFN₄O₂

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