4,5-DIBROMO-1H-1,2,3-TRIAZOLE

Base Information

• Chemical Name: 4,5-DIBROMO-1H-1,2,3-TRIAZOLE
• CAS No.: 15294-81-2
• Molecular Formula: C2HBr2N3
• Molecular Weight: 226.858
• Hs Code.: 2933990090
• Mol file: 15294-81-2.mol

Synonyms:v-Triazole,4,5-dibromo- (8CI);4,5-Dibromo-1H-[1,2,3]triazole;NSC 222414;

Chemical Property of 4,5-DIBROMO-1H-1,2,3-TRIAZOLE

Chemical Property:

• Appearance/Colour: off-white solid
• Vapor Pressure: 0.000108mmHg at 25°C
• Melting Point: 194 °C (decomp)
• Refractive Index: 1.667
• Boiling Point: 347.475 °C at 760 mmHg
• PKA: 5.22±0.70(Predicted)
• Flash Point: 163.947 °C
• PSA: 41.57000
• Density: 2.62 g/cm³
• LogP: 1.32970
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Solubility.: soluble in Methanol

Purity/Quality:

98% ^*data from raw suppliers

4,5-Dibromo-1H-1,2,3-triazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 4,5-Dibromo-1H-1,2,3-triazole is an intermediate used in preparation of isoxazole derivative herbicides.

Technology Process of 4,5-DIBROMO-1H-1,2,3-TRIAZOLE

There total 3 articles about 4,5-DIBROMO-1H-1,2,3-TRIAZOLE 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: 98.7%

1,2,3-triazole (288-36-8) → 4,5-Dibromo-1H-1,2,3-triazole (15294-81-2)

Guidance literature:

With bromine; In water; at 50 ℃; for 3.33333h; Inert atmosphere; Schlenk technique;

DOI:10.1055/s-0040-1707163

Reference yield: 95.0%

1H-1,2,3-triazole-4-carboxylic acid (16681-70-2) → 4,5-Dibromo-1H-1,2,3-triazole (15294-81-2)

Guidance literature:

With bromine; In water; at 40 - 45 ℃; for 5h;

DOI:10.1039/p19960001341

Reference yield:

1,2,3-triazole (288-36-8) → 4,5-Dibromo-1H-1,2,3-triazole (15294-81-2) + 1,4,5-tribromo-1H-[1,2,3]triazole

Guidance literature:

With sodium hypobromide; acetic acid;

upstream raw materials:

1,2,3-triazole

1H-1,2,3-triazole-4-carboxylic acid

Downstream raw materials:

2-methyl-4,5-dibromo-2H-1,2,3-triazole

1-methyl-4,5-dibromo-1H-1,2,3-triazole

N,N-diformyltrifluoromethanesulfonamide