| Identification | Back Directory | [Name]
8-CHLORO-[1,2,4]TRIAZOLO[4,3-A]PYRAZINE | [CAS]
68774-77-6 | [Synonyms]
8-CHLOROTRIAZOLO[4,3-A]PYRAZINE
8-CHLORO-[1,2,4]TRIAZOLO[4,3-A]PYRAZINE
1,2,4-Triazolo[4,3-a]pyrazine,8-chloro- | [Molecular Formula]
C5H3ClN4 | [MDL Number]
MFCD08272086 | [MOL File]
68774-77-6.mol | [Molecular Weight]
154.56 |
| Chemical Properties | Back Directory | [Melting point ]
215-220℃ | [density ]
1.71±0.1 g/cm3(Predicted) | [storage temp. ]
under inert gas (nitrogen or Argon) at 2-8°C | [form ]
Solid | [pka]
-1.10±0.30(Predicted) | [color ]
Brown | [InChIKey]
VKZJRJVVFDDJKP-UHFFFAOYSA-N | [CAS DataBase Reference]
68774-77-6 |
| Hazard Information | Back Directory | [Synthesis]
Using 2-chloro-3-hydrazinopyrazine (8 g) and triethyl orthoformate (32 mL), the mixture was heated to reflux and stirred for 4 hours. Upon completion of the reaction, the reaction solution was cooled to room temperature, the precipitated solid was collected by filtration and washed with ethanol. The resulting solid was 8-chloro-[1,2,4]triazolo[4,3-A]pyrazine, which was dried under reduced pressure to give the product (8.10 g, 95% yield). | [References]
[1] Patent: JP5851663, 2016, B1. Location in patent: Paragraph 0301
[2] Patent: WO2009/64418, 2009, A1. Location in patent: Page/Page column 85
[3] Patent: US2010/120774, 2010, A1. Location in patent: Page/Page column 37-38 |
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