Piperazine, 1-(1-methyl-1H-benzimidazol-2-yl)-4-(phenylsulfonyl)- (9CI)

Base Information

• Chemical Name: Piperazine, 1-(1-methyl-1H-benzimidazol-2-yl)-4-(phenylsulfonyl)- (9CI)
• CAS No.: 604741-57-3
• Molecular Formula: C18H20N4O2S
• Molecular Weight: 356.448
• Mol file: 604741-57-3.mol

Synonyms:Piperazine, 1-(1-methyl-1H-benzimidazol-2-yl)-4-(phenylsulfonyl)- (9CI)

Chemical Property of Piperazine, 1-(1-methyl-1H-benzimidazol-2-yl)-4-(phenylsulfonyl)- (9CI)

Chemical Property:

• PSA: 66.82000
• LogP: 3.16790

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Piperazine, 1-(1-methyl-1H-benzimidazol-2-yl)-4-(phenylsulfonyl)- (9CI)

There total 4 articles about Piperazine, 1-(1-methyl-1H-benzimidazol-2-yl)-4-(phenylsulfonyl)- (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: 95.0%

1-methyl-2-(1-piperazinyl)-1H-benzimidazole (137898-68-1) + benzenesulfonyl chloride (98-09-9) → 2-[4-(benzenesulfonyl)piperazin-1-yl]-1-methyl-1H-1,3-benzimidazole (604741-57-3)

Guidance literature:

With triethylamine; In dichloromethane; at 0 - 20 ℃;

DOI:10.1016/j.bmcl.2013.07.047

Reference yield:

2-chloro-1-methyl-benzimidazole (1849-02-1) → 2-[4-(benzenesulfonyl)piperazin-1-yl]-1-methyl-1H-1,3-benzimidazole (604741-57-3)

Guidance literature:

Multi-step reaction with 3 steps

1: neat (no solvent) / 1 h / 125 °C

2: hydrogen bromide / water / 24 h / 70 °C

3: triethylamine / dichloromethane / 0 - 20 °C

With hydrogen bromide; triethylamine; In dichloromethane; water;

DOI:10.1016/j.bmcl.2013.07.047

Reference yield:

2-chloro-1H-benzoimidazole (4857-06-1) → 2-[4-(benzenesulfonyl)piperazin-1-yl]-1-methyl-1H-1,3-benzimidazole (604741-57-3)

Guidance literature:

Multi-step reaction with 4 steps

1: sodium hydroxide / 2 h / 20 °C

2: neat (no solvent) / 1 h / 125 °C

3: hydrogen bromide / water / 24 h / 70 °C

4: triethylamine / dichloromethane / 0 - 20 °C

With hydrogen bromide; triethylamine; sodium hydroxide; In dichloromethane; water;

DOI:10.1016/j.bmcl.2013.07.047

upstream raw materials:

2-chloro-1-methyl-benzimidazole

2-chloro-1H-benzoimidazole

1-methyl-2-(1-piperazinyl)-1H-benzimidazole

benzenesulfonyl chloride