求翻譯Ethyl acetate was added to the residue prepared by evaporation of the solvent, the mixture was
求翻譯Ethyl acetate was added to the residue prepared by evaporation of the solvent, the mixture was
Ethyl acetate was added to the residue prepared by evaporation of the solvent, the
mixture was washed with water and then an organic layer was dried. Petroleum ether was added to the residue prepared by evaporation of the solvent and the crystals separated out therefrom were filtered to give the title compound
翻譯器什么的就算了吧。。。弱爆了
Ethyl acetate was added to the residue prepared by evaporation of the solvent, the
mixture was washed with water and then an organic layer was dried. Petroleum ether was added to the residue prepared by evaporation of the solvent and the crystals separated out therefrom were filtered to give the title compound
翻譯器什么的就算了吧。。。弱爆了
英語(yǔ)人氣：814 ℃時(shí)間：2020-09-20 13:11:50
優(yōu)質(zhì)解答
溶劑經(jīng)過(guò)蒸發(fā)后,渣體物質(zhì)析出.在其中加入乙酸乙酯后的混合物經(jīng)過(guò)水洗,會(huì)逐漸凝結(jié)一層有機(jī)層；而在其中加入石油醚,會(huì)有晶體析出,然后分離出少量化合物.
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