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|Section3= }} Laurolactam is an organic compound with the molecular formula (CH2)11C(O)NH. This colorless solid is classified as a lactam. Laurolactam is mainly used as a monomer in engineering plastics, such as nylon-12 and copolyamides. ==Synthesis== Although a derivative of 12-aminododecanoic acid, it is made from cyclododecatriene. The triene is hydrogenated to the unsaturated alkane cyclododecane. In the process adopted by Evonik Industries, the cycloalkane is oxidized to the ketone using a boric acid catalyst. The cyclic ketone is converted to the oxime by condensation with hydroxylamine. Under strong acidic conditions and elevated temperatures (115 °C), the oxime converts via a Beckmann rearrangement to laurolactam. The procedure used by Arkema also begins cyclododecane, which is treated with nitrosyl chloride, resulting in the nitrosocyclododecane. This unstable species undergoes tautomeric transformation to the oxime, which is amenable to Beckmann rearrangement.〔Schiffer, T.; Oenbrink, G. "Cyclododecanol, Cyclododecanone, and Laurolactam" in Ullman’s Encyclopedia of Industrial Chemistry: Wiley-VCH, 2009. 〕 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「Laurolactam」の詳細全文を読む スポンサード リンク
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