cranfis(欸? 同學你好眼熟XD), evanzxcv 和 jessti 大大說的都是好方法。 我之所以會寄站內信單純只是因為我覺得回文沒什麼內容，推文又太長，才寄信。 其實我就只是貼個書來看看 XD 不好意思造成大家困擾 Orz -------以下騙不到P幣 因為複製貼上------- Triethylamine Dry triethylamine with CaSO4, LiAlH4, Linde type 4A molecular sieves, CaH2, KOH, or K2CO3, then distill it, either alone or from BaO, sodium, P2O5 or CaH2. 到這邊就跟一般的除水沒有兩樣。沒什麼特別的。 It has also been distilled from zinc dust, under nitrogen. To remove traces of primary and secondary amines, triethylamine has been refluxed with acetic anhydride, benzoic anhydride, phthalic anhydride, then distilled, refluxed with CaH2 (ammonia-free) or KOH (or dried with activated alumina), and again distilled. 以上是需要進一步純化，去除其他雜質。 Another purification method involved refluxing for 2 hours with p-toluenesulfonyl chloride, then distilling. Grovenstein and Williams treated triethylamine (500 mL) with benzoyl chloride (30 mL), filtered off the precipitate, and refluxed the liquid for 1 hour with a further 30 mL of benzoyl chloride. After cooling, the liquid was filtered, distilled, and allowed to stand for several hours with KOH pellets. It was then refluxed with, and distilled from, stirred molten potassium. 這部分是比較特殊的方式了，可以參考用。 有一本書叫做 Purification of Laboratory Chemicals 以上都是摘錄自那本書，覺得其實蠻好用的。 Dry triethylamine 比較要注意的是它是毒物，千萬要小心操作。 另外就是跟所有 solvent system 一樣， quench 的時候千萬要小心... --

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