2,3,5,6-tetrabromopyridine

Base Information

• Chemical Name: 2,3,5,6-tetrabromopyridine
• CAS No.: 2766-64-5
• Molecular Formula: C₅HBr₄N
• Molecular Weight: 394.686
• Mol file: 2766-64-5.mol

Synonyms:2,3,5,6-tetrabromopyridine

Chemical Property of 2,3,5,6-tetrabromopyridine

Chemical Property:

• Melting Point: 102-103 °C
• Boiling Point: 334.3±37.0 °C(Predicted)
• PKA: -8.36±0.20(Predicted)
• Density: 2.677±0.06 g/cm3(Predicted)

Purity/Quality:

99% ^*data from raw suppliers

2,3,5,6-TETRABROMO-PYRIDINE 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 2,3,5,6-tetrabromopyridine

There total 18 articles about 2,3,5,6-tetrabromopyridine 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: 39.0%

2.6-diaminopyridine (141-86-6) → 2,3,5,6-tetrabromopyridine (2766-64-5)

Guidance literature:

With hydrogen bromide; bromine; sodium nitrite; In water; at 0 ℃; for 6h; Inert atmosphere;

DOI:10.1139/cjc-2014-0348

Reference yield: 20.0%

2,6-diamino-3,5-dibromopyridine (76942-20-6) → 2,3,5,6-tetrabromopyridine (2766-64-5)

Guidance literature:

With hydrogen bromide; sodium nitrite; In water; at -3 - 20 ℃; for 4h;

DOI:10.1002/ejoc.201403035

Reference yield:

2,6-Dibromopyridine (626-05-1) → 2,3,6-tribromopyridine (2402-92-8) + 2,3,5,6-tetrabromopyridine (2766-64-5)

Guidance literature:

With bromine; at 300 ℃; Leiten ueber mit Eisen(II)-bromid impraegnierten Bimsstein;

upstream raw materials:

3,5-dibromopyridine

2,6-Dibromopyridine

piperidine-2,6-dione

3,5,6-tribromopyridin-2-amine

Downstream raw materials:

3,5-dibromo-2,6-diphenoxypyridine