3-BroMo-4-nitropyrazole

Base Information

• Chemical Name: 3-BroMo-4-nitropyrazole
• CAS No.: 784193-37-9
• Molecular Formula: C3H2BrN3O2
• Molecular Weight: 191.972
• Hs Code.: 2933199090
• Mol file: 784193-37-9.mol

Synonyms:5-bromo-4-nitro-1H-pyrazole;

Chemical Property of 3-BroMo-4-nitropyrazole

Chemical Property:

• Boiling Point: 328.3±22.0 °C(Predicted)
• PKA: 6.51±0.50(Predicted)
• PSA: 74.50000
• Density: 2.156±0.06 g/cm3(Predicted)
• LogP: 1.60360
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

3-Bromo-4-nitro-1H-pyrazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3-BroMo-4-nitropyrazole

There total 2 articles about 3-BroMo-4-nitropyrazole 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:

1-bromo-4-nitropyrazole → 4-nitro-1H-pyrazole (2075-46-9) + 3,5-dibromo-4-nitro-1H-pyrazole (104599-36-2) + 5-bromo-4-nitropyrazole (784193-37-9) + 3-bromo-4‐nitro‐1H‐pyrazole (784193-37-9)

Guidance literature:

With sodium hydrogencarbonate; In water; at 20 - 25 ℃; for 72h; Overall yield = 1.26 g;

DOI:10.1007/s11172-012-0030-9

Reference yield:

1-bromo-4-nitropyrazole → 4-nitro-1H-pyrazole (2075-46-9) + 3,5-dibromo-4-nitro-1H-pyrazole (104599-36-2) + 5-bromo-4-nitropyrazole (784193-37-9) + 3-bromo-4‐nitro‐1H‐pyrazole (784193-37-9)

Guidance literature:

With sodium hydrogencarbonate; In water; at 20 - 25 ℃; for 72h; Overall yield = 1.26 g;

DOI:10.1007/s11172-012-0030-9

Reference yield: 79.0%

3-bromo-4‐nitro‐1H‐pyrazole (784193-37-9) + p-methoxybenzyl chloride (824-94-2) → 3-bromo-1‐(4‐methoxybenzyl)‐4‐nitro-1H‐pyrazole

Guidance literature:

3-bromo-4‐nitro‐1H‐pyrazole; With potassium carbonate; In acetonitrile; at 20 ℃; for 0.166667h;

p-methoxybenzyl chloride; In acetonitrile; at 65 ℃; for 48h;

DOI:10.1002/chem.201801313

Downstream raw materials:

3-bromo-1-methyl-4-nitro-1H-pyrazole

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