ChemicalBook--->CAS DataBase List--->6945-67-1

6945-67-1

6945-67-1 Structure

6945-67-1 Structure
IdentificationMore
[Name]

2-Bromo-4-nitropyridine
[CAS]

6945-67-1
[Synonyms]

2-BROMO-4-NITROPYRIDINE
[Molecular Formula]

C5H3BrN2O2
[MDL Number]

MFCD03701383
[Molecular Weight]

202.99
[MOL File]

6945-67-1.mol
Chemical PropertiesBack Directory
[Melting point ]

64℃
[Boiling point ]

286.1±20.0 °C(Predicted)
[density ]

1.833±0.06 g/cm3(Predicted)
[storage temp. ]

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

powder to crystal
[pka]

-3.12±0.10(Predicted)
[color ]

Light yellow to Yellow to Green
[BRN ]

120826
[InChI]

InChI=1S/C5H3BrN2O2/c6-5-3-4(8(9)10)1-2-7-5/h1-3H
[InChIKey]

AFVITJKRFRRQKT-UHFFFAOYSA-N
[SMILES]

C1(Br)=NC=CC([N+]([O-])=O)=C1
[CAS DataBase Reference]

6945-67-1(CAS DataBase Reference)
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319-H335
[Precautionary statements ]

P302+P352-P305+P351+P338
[Hazard Codes ]

Xi
[Risk Statements ]

36/37/38
[Safety Statements ]

26-36
[WGK Germany ]

3
[HS Code ]

29333990
[Storage Class]

11 - Combustible Solids
[Hazard Classifications]

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Hazard InformationBack Directory
[Chemical Properties]

Light yellow solid
[Synthesis]

2-Bromo-4-nitropyridine 1-oxide

52092-43-0

2-Bromo-4-nitropyridine

6945-67-1

[Step B] 2-Bromo-4-nitropyridine-N-oxide (17 g, 78 mmol) was dissolved in chloroform (200 mL) and phosphorus tribromide (7.4 mL) was added. The reaction mixture was heated to reflux for 1 hour or monitored by thin layer chromatography until the reaction was complete. After the reaction was complete, it was cooled to room temperature and concentrated under reduced pressure to remove most of the solvent. The residue was slowly poured into ice water and a yellow solid precipitated. The solid product was collected by filtration to afford 2-bromo-4-nitropyridine (14.5 g, 92% yield).

[References]

[1] Patent: WO2004/18463, 2004, A2. Location in patent: Page 42
Spectrum DetailBack Directory
[Spectrum Detail]

2-Bromo-4-nitropyridine(6945-67-1)1HNMR
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

6945-67-1(sigmaaldrich)
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