2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid

Base Information

• Chemical Name: 2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid
• CAS No.: 917569-72-3
• Molecular Formula: C₇H₉BrN₂O₂
• Molecular Weight: 233.065
• Hs Code.: 2933199090
• Mol file: 917569-72-3.mol

Synonyms:2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid

Chemical Property of 2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid

Chemical Property:

• Boiling Point: 350.4±22.0 °C (760 mmHg)
• PSA: 55.12000
• Density: 1.63±0.1 g/cm3 (20 °C, 760 mmHg)
• LogP: 1.46530

Purity/Quality:

97% ^*data from raw suppliers

2-(4-Bromo-1H-pyrazol-1-yl)-2-methylpropanoic acid 95% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid

There total 2 articles about 2-(4-bromopyrazol-1-yl)-2-methylpropanoic 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: 75.3%

methyl 2-(4-bromo-1H-pyrazol-1-yl)-2-methylpropanoate (877401-10-0) → 2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid (917569-72-3)

Guidance literature:

With water; sodium hydroxide; In methanol; at 20 ℃; for 4h;

Reference yield:

2-methyl-2-(1H-pyrazol-1-yl)propanoic acid (851975-10-5) → 2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid (917569-72-3)

Guidance literature:

With 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; In ethyl acetate; at 20 ℃; for 1h; Large scale;

DOI:10.1021/acs.oprd.9b00050

Reference yield:

2-(4-bromopyrazol-1-yl)-2-methylpropanoic acid (917569-72-3) → 2-[4-[[8-[bis[(2,4-dimethoxyphenyl)methyl]amino]-6-(4-methyl-3-pyridyl)-2,7-naphthyridin-3-yl]amino]pyrazol-1-yl]-N,N,2-trimethylpropanamide

Guidance literature:

Multi-step reaction with 2 steps

1: trichlorophosphate / tetrahydrofuran; dichloromethane / 0 - 20 °C

2: sodium t-butanolate; tert-butyl XPhos; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾ / 1,4-dioxane / 7 h / 130 °C / Inert atmosphere

With tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; sodium t-butanolate; tert-butyl XPhos; trichlorophosphate; In tetrahydrofuran; 1,4-dioxane; dichloromethane;

upstream raw materials:

methyl 2-(4-bromo-1H-pyrazol-1-yl)-2-methylpropanoate

2-methyl-2-(1H-pyrazol-1-yl)propanoic acid

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