2,5-Dibromo-3-nitropyridine

2,5-Dibromo-3-nitropyridine
  • CAS No.:15862-37-0
Other grades of this product :
2,5-Dibromo-3-nitropyridine Basic information
Product Name:2,5-Dibromo-3-nitropyridine
Synonyms:2,5-Dibromo-3-nitropyridine;Nsc170627;2,5-Dibromo-3-nitropyridine ,97%;2,5-Dibromo-3-nitropyridi...;Pyridine,2,5-dibroMo-3-nitro-;2,5-DibroMo-3-nitro-pyridine;2,5-Dibromo-3-nitropyridine >2,5-Dibromo-3-nitropyridine,98%
CAS:15862-37-0
MF:C5H2Br2N2O2
MW:281.89
EINECS:808-084-8
Product Categories:Thiazines ,Thiazoles;Pyridines;Pyridine series;Pyridine;Heterocyclic Compounds
Mol File:15862-37-0.mol
2,5-Dibromo-3-nitropyridine Chemical Properties
Melting point 92.0 to 96.0 °C
Boiling point 272.7±35.0 °C(Predicted)
density 2?+-.0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2–8 °C
solubility soluble in Methanol
pka-5.60±0.20(Predicted)
form Solid
color Yellow
InChIKeyOQKWPJCAKRVADO-UHFFFAOYSA-N
CAS DataBase Reference15862-37-0(CAS DataBase Reference)
Safety Information
Hazard Codes Xi,T
Risk Statements 25
Safety Statements 45
RIDADR UN 2811 6.1 / PGIII
WGK Germany 3
HazardClass IRRITANT
HS Code 2933399990
MSDS Information
2,5-Dibromo-3-nitropyridine Usage And Synthesis
Uses2,5-Dibromo-3-nitropyridine is used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.
Preparationsynthesis of 2,5-Dibromo-3-nitropyridine: To a suspension 5-bromo-3-nitro-pyridin-2-ol (20 g, 91.32 mmol) in toluene (100 ml) was added DMF (0.7 ml, 9.13 mmol) and the mixture was heated to 90°C. (the reaction mixture was protected from light). A solution of POBr3 (31. 41 g, 109.51 mmol) in toluene (40 ml) was added dropwise at 90°C. and the reaction mixture was stirred at that temperature for 16 h. The mixture was allowed to cool to room temperature and toluene (50 ml) and water (50 ml) were added. The organic layer was separated, washed successively with aqueous 1N NaOH (60 ml), water (60 ml) and brine (30 ml), dried with Na2SO4 and evaporated obtain 2,5-Dibromo-3-nitropyridine. Yellow solid, yield 25.2 g, 97%.

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