| Identification | Back Directory | [Name]
1,3-DIMETHYL-4-NITRO-1H-PYRAZOLE | [CAS]
3920-38-5 | [Synonyms]
EOS-60827
AKOS B006748
AKOS BBS-00002614
ART-CHEM-BB B006748
SALOR-INT L119679-1EA
1,3-dimethyl-4-nitropyrazole
1,3-dimethyl-4-nitro-pyrazole
1,3-dimethyl-1h-pyrazole-4-nitro
1,3-DIMETHYL-4-NITRO-1H-PYRAZOLE
1H-pyrazole, 1,3-dimethyl-4-nitro-
1,3-dimethyl-4-nitro-1H-pyrazole(WXC08078) | [Molecular Formula]
C5H7N3O2 | [MDL Number]
MFCD00464263 | [MOL File]
3920-38-5.mol | [Molecular Weight]
141.13 |
| Chemical Properties | Back Directory | [Melting point ]
72 °C | [Boiling point ]
243.0±20.0 °C(Predicted) | [density ]
1.36±0.1 g/cm3(Predicted) | [storage temp. ]
2-8°C | [form ]
powder | [pka]
-1.60±0.10(Predicted) | [color ]
White |
| Hazard Information | Back Directory | [Synthesis]
General method: 4-Iodo-1,3-dimethyl-1H-pyrazole (1 mmol) was dissolved in tetrahydrofuran (THF, 10 mL) and Fuajasite catalyst (250 mg) was added. Concentrated nitric acid (density 1.52 g/cm3, 10 mL) was added slowly and the reaction was stirred at room temperature for the desired time. After completion of the reaction, the catalyst was recovered by filtration and the filtrate was extracted with dichloromethane several times. The organic phases were combined and concentrated under reduced pressure to remove the solvent to give 1,3-dimethyl-4-nitro-1H-pyrazole. | [References]
[1] Synthetic Communications, 2012, vol. 42, # 23, p. 3463 - 3471
[2] Russian Chemical Bulletin, 1996, vol. 45, # 11, p. 2581 - 2584
[3] Catalysis Communications, 2013, vol. 42, p. 35 - 39 |
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