| Identification | Back Directory | [Name]
3-Amino-2-bromo-5-fluoropyridine | [CAS]
884495-03-8 | [Synonyms]
3-Amino-2-bromo-5-fL
2-bromo-5-fluoropyridin-3-amine
2-Bromo-5-fluoro-3-pyridinamine
2-broMo-5-fluoro-3-aMinopyridine
3-AMINO-2-BROMO-5-FLUOROPYRIDINE
3-Pyridinamine, 2-bromo-5-fluoro-
2-Bromo-5-fluoro-pyridin-3-ylamine
3-Amino-2-bromo-5-fluoropyridine,97%
3-Amino-2-bromo-5-fluoropyridine 98%
3-Amino-2-bromo-5-fluoropyridine ISO 9001：2015 REACH | [EINECS(EC#)]
629-495-7 | [Molecular Formula]
C5H4BrFN2 | [MDL Number]
MFCD05662413 | [MOL File]
884495-03-8.mol | [Molecular Weight]
191 |
| Chemical Properties | Back Directory | [Melting point ]
114-116 °C | [Boiling point ]
273.6±35.0 °C(Predicted) | [density ]
1.813±0.06 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Inert atmosphere,Room temperature | [form ]
solid | [pka]
-0.50±0.10(Predicted) | [color ]
White to off-white | [InChI]
InChI=1S/C5H4BrFN2/c6-5-4(8)1-3(7)2-9-5/h1-2H,8H2 | [InChIKey]
QUZAKZBKMMUARE-UHFFFAOYSA-N | [SMILES]
C1(Br)=NC=C(F)C=C1N |
| Hazard Information | Back Directory | [Description]
3-Amino-2-bromo-5-fluoropyridine is a polyhalogenated pyridine with the chemical formula C5H4BrFN2. The compound has three functional groups: amino, bromine and fluorine, which change its reactivity. It is a crucial compound that could be used as a pharmaceutical intermediate in pharmaceutical synthesis and scientific research. | [Synthesis]
Step 1: A suspension of 2-bromo-5-fluoro-3-nitropyridine (4.42 g, 20 mmol) with stannous chloride (SnCl2, 22.56 g, 100 mmol) in ethanol (EtOH, 40 mL) and concentrated hydrochloric acid (HCl, 40 mL) was heated to 60°C and reacted for 1 hour. After completion of the reaction, the reaction mixture was concentrated under reduced pressure. To the residue was added ethyl acetate (EtOAc, 100 mL) and saturated aqueous sodium bicarbonate (NaHCO3). The mixture was filtered through diatomaceous earth (Celite) and extracted with ethyl acetate (100 mL x 3). The organic layers were combined, washed sequentially with saturated sodium bicarbonate solution, water and brine, dried over anhydrous magnesium sulfate (MgSO4), filtered and concentrated under reduced pressure to give 3.1 g of 2-bromo-5-fluoropyridin-3-amine as a brown solid (80% yield). Mass spectrum (ESI): m/z = 191.1 [M + 1]+. | [References]
[1] Patent: WO2013/92940, 2013, A1. Location in patent: Page/Page column 50; 51 |
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