2,3-Dibromo-5,6-diphenylpyrazine

Base Information

• Chemical Name: 2,3-Dibromo-5,6-diphenylpyrazine
• CAS No.: 75163-71-2
• Molecular Formula: C16H10 Br2 N2
• Molecular Weight: 390.077
• NSC Number: 105561
• DSSTox Substance ID: DTXSID20295794
• Wikidata: Q82035956

Synonyms:2,3-dibromo-5,6-diphenylpyrazine;75163-71-2;Pyrazine, 2,3-dibromo-5,6-diphenyl-;NSC105561;SCHEMBL24501024;DTXSID20295794;NSC-105561

Chemical Property of 2,3-Dibromo-5,6-diphenylpyrazine

Chemical Property:

• Vapor Pressure: 5.89E-06mmHg at 25°C
• Boiling Point: 390.6°Cat760mmHg
• Flash Point: 190°C
• Density: 1.633g/cm³
• XLogP3: 5.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 2
• Exact Mass: 389.91902
• Heavy Atom Count: 20
• Complexity: 271

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC=C(C=C1)C2=C(N=C(C(=N2)Br)Br)C3=CC=CC=C3

Technology Process of 2,3-Dibromo-5,6-diphenylpyrazine

There total 5 articles about 2,3-Dibromo-5,6-diphenylpyrazine 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:

3-bromo-5,6-diphenyl-1H-pyrazin-2-one (25468-60-4) → 2,3-dibromo-5,6-diphenylpyrazine (75163-71-2)

Guidance literature:

With phosphorus tribromide;

DOI:10.1021/ja01597a057

Reference yield:

2,3-Diphenyl-6-hydroxypyrazine (18591-57-6) → 2,3-dibromo-5,6-diphenylpyrazine (75163-71-2)

Guidance literature:

Multi-step reaction with 2 steps

1: pyridine; acetic acid; bromine

2: PBr₃

With pyridine; bromine; phosphorus tribromide; acetic acid;

DOI:10.1021/ja01597a057

Reference yield:

3-nitro-5,6-diphenyl-1H-pyrazin-2-one (25468-58-0) → 2,3-dibromo-5,6-diphenylpyrazine (75163-71-2)

Guidance literature:

With phosphorus tribromide;

upstream raw materials:

5,6-Dichloro-2,3-diphenylpyrazine

3-bromo-5,6-diphenyl-1H-pyrazin-2-one

3-nitro-5,6-diphenyl-1H-pyrazin-2-one

2,3-Diphenyl-6-hydroxypyrazine

Downstream raw materials:

2-bromo-3-methoxy-5,6-diphenyl-pyrazine

5,6-diphenyl-pyrazine-2,3-diamine

2,3-bisphenylethynyl-5,6-diphenylpyrazine

2,3-dimethyl-6,7-diphenylpyrazino<2,3-b>pyrazine

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