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yinfaji

新虫 (小有名气)

[求助] 一段简单实验记录

请尽可能的流畅,谢谢。
To a solution of the 原料 (2 mmol) in 二氯甲烷 (5 mL) was added  硼烷 (5 mg, 0.01 mmol) and 硅氧烷 (4 mmol) and the solution was stirred at room temperature for a period of time (monitored by TLC). Water was added to the reaction mixture and was extracted with 二氯甲烷 (3 x 5 mL). The combined organic layers were washed with brine, dried over anhydrous sodium sulphate, concentrated under vacuo and the crude product was purified by flash chromatography.
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liulongcheng

至尊木虫 (职业作家)

寻章摘句老雕虫

【答案】应助回帖

多看看,看多了,就象看小说!
乖,要不就敲你丁公!!!!!
3楼2012-05-07 06:56:30
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