3,5-Dibromo-2-hydroxypyrazine

Base Information

• Chemical Name: 3,5-Dibromo-2-hydroxypyrazine
• CAS No.: 21943-15-7
• Molecular Formula: C₄H₂Br₂N₂O
• Molecular Weight: 253.881
• Hs Code.: 29339900
• European Community (EC) Number: 640-192-9
• DSSTox Substance ID: DTXSID80587728
• Wikidata: Q72464441
• Mol file: 21943-15-7.mol

Synonyms:3,5-Dibromo-2-hydroxypyrazine;21943-15-7;3,5-dibromopyrazin-2-ol;3,5-Dibromo-pyrazin-2-ol;3,5-dibromo-1H-pyrazin-2-one;3,5-Dibromopyrazin-2(1H)-one;3,5-dibromo-2(1H)-Pyrazinone;MFCD07371406;2(1H)-Pyrazinone, 3,5-dibromo-;3,5-dibromo-1,2-dihydropyrazin-2-one;3,5-Dibromo-2-pyrazinone;3,5-dibromo-pyrazin-2-one;SCHEMBL376389;3,5-dibromo-2-hydroxylpyrazine;DTXSID80587728;NHVGHXUOFWEOSN-UHFFFAOYSA-N;BCP23373;BBL101174;FD9128;STL554970;AKOS005257123;AKOS016015485;3,5-Dibromo-2-hydroxypyrazine, 97%;AC-5185;CS-W003394;MCULE-4939904531;PS-5655;SY017456;DB-006293;A4700;AM20070328;EN300-6486258;Q-103295

Chemical Property of 3,5-Dibromo-2-hydroxypyrazine

Chemical Property:

• Melting Point: 174-178°C
• Boiling Point: 430.487 °C at 760 mmHg
• PKA: 8.35±0.60(Predicted)
• Flash Point: 214.151 °C
• PSA: 46.01000
• Density: 2.38 g/cm³
• LogP: 1.70720
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• XLogP3: 1.3
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 253.85134
• Heavy Atom Count: 9
• Complexity: 209

Purity/Quality:

99% ^*data from raw suppliers

3,5-Dibromo-2-pyrazinone ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 22-41
• Safety Statements: 26-39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C(N=C(C(=O)N1)Br)Br
• Uses: 3,5-Dibromo-pyrazinol ,is a pyrazine derivative that can be used as a potential building block in chemical synthesis. It can also be used in SRN1 mechanism in heteroaromatic nucleophilic substitution.

Technology Process of 3,5-Dibromo-2-hydroxypyrazine

There total 2 articles about 3,5-Dibromo-2-hydroxypyrazine 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: 79.4%

2-amino-3,5-dibromopyrazine (24241-18-7) → 3,5-dibromo-2-hydroxylpyrazine (21943-15-7)

Guidance literature:

2-amino-3,5-dibromopyrazine; With sulfuric acid; acetic acid; at 15 - 25 ℃;

With sodium nitrite; In water; at 10 - 15 ℃; for 2.5h;

Reference yield:

→ 3,5-dibromo-2-hydroxylpyrazine (21943-15-7)

Guidance literature:

2-Amino-3,5-dibrom-pyrazin, HBr, Br2, NaNO2;

Reference yield: 32.6%

diazomethane (186581-53-3,908094-01-9,334-88-3) + 3,5-dibromo-2-hydroxylpyrazine (21943-15-7) → 3,5-dibromo-2-methoxypyrazine (1207853-31-3)

Guidance literature:

In tetrahydrofuran; diethyl ether; at 0 - 20 ℃;

upstream raw materials:

2-amino-3,5-dibromopyrazine

Downstream raw materials:

3,5-dibromo-2-methoxypyrazine

C₁₂H₁₂BrN₃O

Refernces

• 1、 -. "6 SUBSTITUTED 2-HETEROCYCLYLAMINO PYRAZINE COMPOUNDS AS CHK-1 INHIBITORS". Page/Page column 144. . Retrieved 2010/04/03.