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公开(公告)号:US07615672B2
公开(公告)日:2009-11-10
申请号:US11883155
申请日:2005-06-23
Applicant: Kumaran Ganesan , Ramesh Chandra Malhotra , Ambati Narasimha Rao , Pradeep Kumar Gupta , Asheesh Kumar Jain , Shri Prakash , Krishnamurthy Sekhar
Inventor: Kumaran Ganesan , Ramesh Chandra Malhotra , Ambati Narasimha Rao , Pradeep Kumar Gupta , Asheesh Kumar Jain , Shri Prakash , Krishnamurthy Sekhar
IPC: C07C1/207
Abstract: A process for the preparation of n-heneicosane is disclosed. The process comprises (a) reacting 2,4-alkaneanedione with 1-bromooctadecane in absolute ethanol in the presence of 18-crown-6 as catalyst to produce 2-heneicosanone; and (b) reducing said 2-heneicosanone using hydrazine hydrate and potassium hydroxide in ethylene glycol to obtain n-heneicosane.
Abstract translation: 公开了制备正二硅烷的方法。 该方法包括(a)在18-冠醚-6作为催化剂的存在下,将2,4-烷二酮与1-溴十八烷在无水乙醇中反应生成2-乙烯酮; 和(b)使用水合肼和氢氧化钾在乙二醇中还原所述2-己烯酮以获得正二十二烷。