3,6-Dibromopyrazine-2-carboxylic acid

Base Information

• Chemical Name: 3,6-Dibromopyrazine-2-carboxylic acid
• CAS No.: 957230-68-1
• Molecular Formula: C₅H₂Br₂N₂O₂
• Molecular Weight: 281.891
• Hs Code.: 2933990090
• DSSTox Substance ID: DTXSID50693365
• Wikidata: Q82622414
• Mol file: 957230-68-1.mol

Synonyms:3,6-Dibromopyrazine-2-carboxylic acid;957230-68-1;3,6-dibromo-2-Pyrazinecarboxylic acid;MFCD13193674;SCHEMBL275483;AMY7762;DTXSID50693365;MJOLIBQBOIULPY-UHFFFAOYSA-N;3,6-dibromo-2-Pyrazinecarboxylicacid;AKOS015834150;3,6-dibromo-pyrazin-2-carboxylic acid;AS-18910;SY021153;CS-0051596;FT-0702571;EN300-383817;A847801;Z1269199236

Chemical Property of 3,6-Dibromopyrazine-2-carboxylic acid

Chemical Property:

• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.663
• Boiling Point: 368.724°C at 760 mmHg
• Flash Point: 176.798°C
• PSA: 63.08000
• Density: 2.334g/cm³
• LogP: 1.69980
• Storage Temp.: Sealed in dry,Room Temperature
• XLogP3: 1.7
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 1
• Exact Mass: 281.84625
• Heavy Atom Count: 11
• Complexity: 167

Purity/Quality:

97% ^*data from raw suppliers

3,6-Dibromopyrazine-2-carboxylicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C(N=C(C(=N1)Br)C(=O)O)Br

Technology Process of 3,6-Dibromopyrazine-2-carboxylic acid

There total 4 articles about 3,6-Dibromopyrazine-2-carboxylic acid 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: 74.0%

3,6-dibromopyrazine-2-carboxylic acid methyl ester (13301-04-7) → 3,6-dibromo-pyrazine-2-carboxylic Acid (957230-68-1)

Guidance literature:

3,6-dibromopyrazine-2-carboxylic acid methyl ester; With water; lithium hydroxide; In tetrahydrofuran; at 0 ℃; for 0.75h;

With hydrogenchloride; In dichloromethane; water;

Reference yield:

methyl 3-amino-6-bromopyrazine-2-carboxylate (6966-01-4) → 3,6-dibromo-pyrazine-2-carboxylic Acid (957230-68-1)

Guidance literature:

Multi-step reaction with 2 steps

1.1: bromine; hydrogen bromide; acetic acid / water / 0.75 h / 0 °C

1.2: 0.5 h / 0 °C

2.1: water; lithium hydroxide / tetrahydrofuran / 0.75 h / 0 °C

With water; hydrogen bromide; bromine; acetic acid; lithium hydroxide; In tetrahydrofuran; water;

Reference yield:

Methyl 3-amino-2-pyrazinecarboxylate (16298-03-6) → 3,6-dibromo-pyrazine-2-carboxylic Acid (957230-68-1)

Guidance literature:

Multi-step reaction with 3 steps

1.1: bromine; acetic acid / water / 1 h / 25 - 45 °C

2.1: bromine; hydrogen bromide; acetic acid / water / 0.75 h / 0 °C

2.2: 0.5 h / 0 °C

3.1: water; lithium hydroxide / tetrahydrofuran / 0.75 h / 0 °C

With water; hydrogen bromide; bromine; acetic acid; lithium hydroxide; In tetrahydrofuran; water;

upstream raw materials:

3,6-dibromopyrazine-2-carboxylic acid methyl ester

methyl 3-amino-6-bromopyrazine-2-carboxylate

Methyl 3-amino-2-pyrazinecarboxylate

3-aminopyrazinoic acid

Downstream raw materials:

3,6-dibromopyrazin-2-amine