3, 5- Bis(benzimidazol-2-yl)pyrazole

Base Information

• Chemical Name: 3, 5- Bis(benzimidazol-2-yl)pyrazole
• CAS No.: 223467-24-1
• Molecular Formula: C17H12N6
• Molecular Weight: 300.322
• Hs Code.: 2933990090
• Mol file: 223467-24-1.mol

Synonyms:3, 5- Bis(benzimidazol-2-yl)pyrazole;2,2'-(1H-Pyrazole-3,5-diyl)-bis(1H-benzo[d]imidazole);2-[5-(1H-benziMidazol-2-yl)-1,2-dihydropyrazol-3-ylidene]benziMidazole

Chemical Property of 3, 5- Bis(benzimidazol-2-yl)pyrazole

Chemical Property:

• PSA: 86.04000
• LogP: 3.49630
• Storage Temp.: 2-8°C

Purity/Quality:

99% ^*data from raw suppliers

2,2'-(1H-Pyrazole-3,5-diyl)-bis(1H-benzo[d]imidazole) 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
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Technology Process of 3, 5- Bis(benzimidazol-2-yl)pyrazole

There total 1 articles about 3, 5- Bis(benzimidazol-2-yl)pyrazole 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: 40.0%

3,5-pyrazoledicarboxylic acid (3112-31-0) + 1,2-diamino-benzene (95-54-5) → 2,2’-(1H-pyrazole-3,5-diyl)bis(1H-benzo[d]imidazole) (223467-24-1)

Guidance literature:

With PPA; at 200 ℃; for 4h;

Reference yield: 70.0%

sodium perchlorate monohydrate (7791-07-3) + cis-[bis(2,2'-bipyridine)dichloridoosmium(II)] (79982-56-2) + 2,2’-(1H-pyrazole-3,5-diyl)bis(1H-benzo[d]imidazole) (223467-24-1) → [bis(2,2'-bipyridine)osmium(II)(pyrazolyl-3,5-bis(benzimidazole))osmium(II)bis(2,2'-bipyridine)] perchlorate dihydrate

Guidance literature:

With Et₃N; In ethanol; water; (N2), mixt. of Os complex, ligand and Et3N (2:1:10 in EtOH/H2O 1:1 refluxed for 72 h, filtered, cooled to 5°C, added to aq. soln. of NaClO4*H2O, stirred for 10 min; filtered, recrystd. twice (CH3OH/H2O 10:1) with a few drops of aq.NaClO4, elem. anal.;

DOI:10.1002/ejic.200900848

Reference yield: 40.0%

cis-[bis(2,2'-bipyridine)dichloridoosmium(II)] (79982-56-2) + sodium perchlorate + 2,2’-(1H-pyrazole-3,5-diyl)bis(1H-benzo[d]imidazole) (223467-24-1) → bis(2,2'-bipyridine)(pyrazolyl-3,5-bis(benzimidazole)osmium) perchlorate dihydrate

Guidance literature:

In ethanol; water; mixt. of metal complex and ligand (0.5:1.2 molar ratio) refluxed for 60 h under nitrogen, filtered, concd., NaClO4 added; crystd., filtered, recrystd. (methanol/H2O), elem. anal.;

DOI:10.1016/S0277-5387(02)01209-3

upstream raw materials:

3,5-pyrazoledicarboxylic acid

1,2-diamino-benzene

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