1H-imidazo[1,2-b]pyrazole-6-carboxylic acid

Base Information

• Chemical Name: 1H-imidazo[1,2-b]pyrazole-6-carboxylic acid
• CAS No.: 159181-78-9
• Molecular Formula: C₆H₅N₃O₂
• Molecular Weight: 151.125
• DSSTox Substance ID: DTXSID90434057
• Wikidata: Q82248367
• Mol file: 159181-78-9.mol

Synonyms:1H-imidazo[1,2-b]pyrazole-6-carboxylic acid;159181-78-9;5H-imidazo[1,2-b]pyrazole-6-carboxylic acid;1H-PYRAZOLO[1,5-A]IMIDAZOLE-6-CARBOXYLIC ACID;1H-Imidazo[1,2-b]pyrazole-6-carboxylicacid(9CI);1H-Imidazo[1,2-b]pyrazole-6-carboxylicacid;SCHEMBL1898513;SCHEMBL2267926;DTXSID90434057;AKOS022175993;AB55663;CS-0447487;EN300-88114;J-504664;F8887-5188

Chemical Property of 1H-imidazo[1,2-b]pyrazole-6-carboxylic acid

Chemical Property:

• Refractive Index: 1.793
• PSA: 70.39000
• Density: 1.741g/cm³
• LogP: 0.36060
• XLogP3: 0.6
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 151.038176411
• Heavy Atom Count: 11
• Complexity: 185

Purity/Quality:

97% ^*data from raw suppliers

1H-Imidazo[1,2-b]pyrazole-6-carboxylicacid 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CN2C(=N1)C=C(N2)C(=O)O

Technology Process of 1H-imidazo[1,2-b]pyrazole-6-carboxylic acid

There total 3 articles about 1H-imidazo[1,2-b]pyrazole-6-carboxylic acid 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: 58.5%

ethyl imidazo<1,2-b>pyrazole-6-carboxylate (159181-77-8) → 6-carboxy-1H-imidazo<1,2-b>pyrazole (159181-78-9)

Guidance literature:

With sodium hydroxide; for 1h; Ambient temperature;

DOI:10.1002/jhet.5570310408

Reference yield:

ethyl 1-(2,2-diethoxyethyl)-5-aminopyrazole-3-carboxylate (222056-28-2) → 6-carboxy-1H-imidazo<1,2-b>pyrazole (159181-78-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 43.5 percent / HCl*Et₂O / tetrahydrofuran / 2 h / Ambient temperature

2: 58.5 percent / 4N NaOH / 1 h / Ambient temperature

With sodium hydroxide; hydrochloric acid diethyl ether; In tetrahydrofuran;

DOI:10.1080/00397919908085772

Reference yield:

→ 6-carboxy-1H-imidazo<1,2-b>pyrazole (159181-78-9)

Guidance literature:

upstream raw materials:

ethyl imidazo<1,2-b>pyrazole-6-carboxylate

ethyl 1-(2,2-diethoxyethyl)-5-aminopyrazole-3-carboxylate