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[求助]
翻譯一下實驗步驟
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1.A solution of imidazole(16.3g,0.24 mol) in dry 1,4-dioxane (100 mL) was added to 150 mL of a suspension of oil-free sodium hydride (5.8 g, 0.24 mol) with stirring for 2h at 90°C 尤其是那個 suspension of oil-free sodium hydride 是什么意思啊 2..After the removalof CH2Cl2, the oily residue was distilled using a Kugelrohr apparatus under reduced pressure |
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