3-BROMO-5-FLUORO (1H)INDAZOLE

Base Information

• Chemical Name: 3-BROMO-5-FLUORO (1H)INDAZOLE
• CAS No.: 885519-08-4
• Molecular Formula: C₇H₄BrFN₂
• Molecular Weight: 215.025
• Hs Code.: 2933998090
• Mol file: 885519-08-4.mol

Synonyms:1H-INDAZOLE,3-BROMO-5-FLUORO;

Chemical Property of 3-BROMO-5-FLUORO (1H)INDAZOLE

Chemical Property:

• Vapor Pressure: 0.000208mmHg at 25°C
• Boiling Point: 337.2°C at 760 mmHg
• Flash Point: 157.7°C
• PSA: 28.68000
• Density: 1.861g/cm³
• LogP: 2.46450
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C

Purity/Quality:

98%min ^*data from raw suppliers

3-Bromo-5-fluoro-1H-indazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3-BROMO-5-FLUORO (1H)INDAZOLE

There total 3 articles about 3-BROMO-5-FLUORO (1H)INDAZOLE 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: 59.3%

5-fluoro-1H-indazole (348-26-5) → 3-bromo-5-fluoro-1H-indazole (885519-08-4)

Guidance literature:

With N-Bromosuccinimide; at 0 - 20 ℃; for 2h;

Reference yield:

1-Acetyl-5-fluorindazol (141071-11-6) → 3-bromo-5-fluoro-1H-indazole (885519-08-4)

Guidance literature:

Multi-step reaction with 2 steps

1: hydrogenchloride / methanol / 2 h / 50 °C

2: N-Bromosuccinimide / 2 h / 0 - 20 °C

With hydrogenchloride; N-Bromosuccinimide; In methanol;

Reference yield:

4-fluor-2-methylaniline (452-71-1) → 3-bromo-5-fluoro-1H-indazole (885519-08-4)

Guidance literature:

Multi-step reaction with 3 steps

1.1: potassium acetate / chloroform / 1 h / 60 °C

1.2: 20 - 75 °C

2.1: hydrogenchloride / methanol / 2 h / 50 °C

3.1: N-Bromosuccinimide / 2 h / 0 - 20 °C

With hydrogenchloride; N-Bromosuccinimide; potassium acetate; In methanol; chloroform;

upstream raw materials:

1-Acetyl-5-fluorindazol

5-fluoro-1H-indazole

4-fluor-2-methylaniline

Refernces