Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 2075-46-9, name is 4-Nitro-1H-pyrazole, This compound has unique chemical properties. The synthetic route is as follows., 2075-46-9
The 4 – nitro – 1H – pyrazole (5 g, 44.21 mmol) dissolved in DMF (20 ml), add K2CO3(9.1 G, 65 . 85 mmol) and 1 – bromo -2 – methoxy ethane (7.4 g, 53 . 24 mmol), 50 C reaction 16 hours. The reaction solution is poured into ice water, ethyl acetate extraction, anhydrous sodium sulfate drying, filtering steams the main column chromatography (petroleum ether: ethyl acetate=3:1), to obtain brown oil of 5 g, yield 66%.
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