ChemicalBook--->CAS DataBase List--->957344-74-0

957344-74-0

957344-74-0 Structure

957344-74-0 Structure
IdentificationBack Directory
[Name]

5,8-DibroMoiMidazo[1,2-a]pyrazine
[CAS]

957344-74-0
[Synonyms]

5,8-DibroMoiMidazo[1,2-a]pyrazine
5-bromoimidazo[1,2-a]pyrazin-8-amine
Imidazo[1,2-a]pyrazine, 5,8-dibromo-
[Molecular Formula]

C6H3Br2N3
[MDL Number]

MFCD13193554
[MOL File]

957344-74-0.mol
[Molecular Weight]

276.92
Chemical PropertiesBack Directory
[density ]

2.35±0.1 g/cm3(Predicted)
[storage temp. ]

under inert gas (nitrogen or Argon) at 2-8°C
[pka]

-0.30±0.30(Predicted)
[Appearance]

Light brown to light yellow Solid
Safety DataBack Directory
[HS Code ]

2933998090
Spectrum DetailBack Directory
[Spectrum Detail]

5,8-DibroMoiMidazo[1,2-a]pyrazine(957344-74-0)1HNMR
Hazard InformationBack Directory
[Synthesis]

3,6-dibromopyrazin-2-amine

957230-70-5

Bromoacetaldehyde diethyl acetal

2032-35-1

5,8-DibroMoiMidazo[1,2-a]pyrazine

957344-74-0

General procedure for the synthesis of 5,8-dibromoimidazo[1,2-a]pyrazines from 2,5-dibromo-3-aminopyrazines and bromoacetaldehyde diethyl acetal: 3,6-dibromopyrazin-2-ylamine (4.0 g, 15.80 mmol) and bromoacetaldehyde diethyl acetal (3.7 mL, 24.00 mmol) were dissolved in a mixture of tetrahydrofuran (5.3 mL) and distilled water (53 mL ) in a solvent mixture. The reaction mixture was stirred at 120 °C for 4 hours. Upon completion of the reaction, the reaction solution was neutralized by addition of saturated aqueous sodium bicarbonate. The resulting solid was collected by filtration, washed with distilled water and dried to give 5,8-dibromoimidazo[1,2-a]pyrazine (2.75 g).

[References]

[1] Patent: US2009/286798, 2009, A1. Location in patent: Page/Page column 27
[2] Bioorganic and Medicinal Chemistry Letters, 2012, vol. 22, # 6, p. 2266 - 2270
[3] Patent: KR2015/113801, 2015, A. Location in patent: Paragraph 0127-0130
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