| Identification | More | [Name]
5-BROMO-2-HYDRAZINOPYRIDINE | [CAS]
77992-44-0 | [Synonyms]
5-BROMO-2-HYDRAZINOPYRIDINE
5-BROMO-2-HYDRAZINYLPYRIDINE
(5-BROMO-PYRIDIN-2-YL)-HYDRAZINE
2-Hydrazino-5-bromopyridine
5-Bromo-2-hydrazinopyridine 97%
N-(5-Bromo-2-pyridyl)hydrazine | [Molecular Formula]
C5H6BrN3 | [MDL Number]
MFCD00513424 | [Molecular Weight]
188.03 | [MOL File]
77992-44-0.mol |
| Chemical Properties | Back Directory | [Melting point ]
132.0 to 136.0 °C | [Boiling point ]
238.2±50.0 °C(Predicted) | [density ]
1.82±0.1 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Inert atmosphere,Store in freezer, under -20°C | [form ]
powder to crystal | [pka]
8.97±0.70(Predicted) | [color ]
White to Light yellow to Light orange | [CAS DataBase Reference]
77992-44-0(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Synthesis]
2-Chloro-5-bromopyridine (64 g, 333 mmol) was suspended in hydrazine monohydrate (250 mL), and the mixture was heated at 70° C. for 72 hours. The reaction mixture was then diluted with water (750 mL), and the resulting precipitate was filtered off and azeotrope, firstly with toluene (*2) and then dichloromethane (*2), to afford 5-Bromo-2-hydrazinopyridine as a pale brown solid in 83percent yield, 52 g. | [References]
[1] Patent: US2006/35922, 2006, A1. Location in patent: Page/Page column 31
[2] Patent: WO2007/91152, 2007, A1. Location in patent: Page/Page column 48
[3] Patent: WO2012/65546, 2012, A1. Location in patent: Page/Page column 19
[4] Patent: WO2012/65297, 2012, A1. Location in patent: Page/Page column 19
[5] Patent: US2010/305085, 2010, A1. Location in patent: Page/Page column 17 |
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