| Identification | Back Directory | [Name]
3-CHLORO-2-HYDRAZINO-1,2-DIHYDROPYRAZINE HYDROCHLORIDE | [CAS]
63286-28-2 | [Synonyms]
oro-3-hydrazinyL
2-Chloro-3-hydrazinopyrazine
2-CHLORO-3-HYDRAZINYLPYRAZINE
2-chloro-3-hydrazineylpyrazine
(3-Chloropyrazin-2-yl)hydrazine
Pyrazine,2-chloro-3-hydrazinyl-
2-(3-chloropyrazin-2-yl)hydrazine
3-Chloro-2(H)-pyrazinone hydrazone
2-chloro-3-hydrazinopyrazine(SALTDATA: FREE)
(3-Chloro-pyrazin-2-yl)-hydrazine hydrochloride
3-CHLORO-2-HYDRAZINO-1,2-DIHYDROPYRAZINE HYDROCHLORIDE | [Molecular Formula]
C4H5ClN4 | [MDL Number]
MFCD08272804 | [MOL File]
63286-28-2.mol | [Molecular Weight]
144.56 |
| Chemical Properties | Back Directory | [Melting point ]
154-159°C | [Boiling point ]
271.0±23.0 °C(Predicted) | [density ]
1.63±0.1 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Inert atmosphere,Store in freezer, under -20°C | [solubility ]
DMSO (Slightly), Methanol (Slightly) | [form ]
Solid | [pka]
1.27±0.20(Predicted) | [color ]
Very Dark Red to Brown |
| Hazard Information | Back Directory | [Synthesis]
Step 1: 2,3-Dichloropyrazine (150 g, 1.00 mol) was dissolved in ethanol (700 mL) to which hydrazine monohydrate (124.53 g, 2.11 mmol, 85% aqueous solution) was subsequently added. The reaction mixture was heated under reflux conditions overnight. Upon completion of the reaction, the mixture was cooled and the precipitate was collected by filtration. The resulting solid was washed sequentially with water (100 mL, twice) and cold ethanol (150 mL, twice) and finally dried under reduced pressure to give 2-chloro-3-hydrazinopyrazine (140 g, 96% yield). | [References]
[1] Patent: WO2016/55618, 2016, A1. Location in patent: Page/Page column 64
[2] Patent: US2014/142098, 2014, A1. Location in patent: Paragraph 0233 - 0236
[3] Patent: US2015/133447, 2015, A1. Location in patent: Paragraph 0287; 0288; 0289
[4] Patent: WO2013/39785, 2013, A2. Location in patent: Page/Page column 80; 81
[5] Patent: WO2008/130951, 2008, A1. Location in patent: Page/Page column 60 |
|
|