|
|Section2= |Section3= |Section4= |Section5= }} Triethylamine is the chemical compound with the formula N(CH2CH3)3, commonly abbreviated Et3N. It is also abbreviated TEA, yet this abbreviation must be used carefully to avoid confusion with triethanolamine or tetraethylammonium, for which TEA is also a common abbreviation. It is a colourless volatile liquid with a strong fishy odor reminiscent of ammonia and is also the smell of the hawthorn plant.〔(The Hawthorn ), BBC〕 Like diisopropylethylamine (Hünig’s base), triethylamine is commonly encountered in organic synthesis. ==Synthesis and properties== Triethylamine is prepared by the alkylation of ammonia with ethanol:〔Karsten Eller, Erhard Henkes, Roland Rossbacher, Hartmut Höke "Amines, Aliphatic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. 〕 :NH3 + 3 C2H5OH → N(C2H5)3 + 3 H2O The pKa of protonated triethylamine is 10.75,〔(David Evans Research Group )〕 and it can be used to prepare buffer solutions for that pH. The hydrochloride salt, triethylamine hydrochloride (triethylammonium chloride), is a colorless, odorless, and hygroscopic powder, which decomposes when heated to 261 °C. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「triethylamine」の詳細全文を読む スポンサード リンク
|