发明授权
- 专利标题： Process for preparing ketones, in particular macrocyclic ketones
- 专利标题（中）： 制备酮的方法，特别是大环酮
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申请号： US13269016申请日： 2011-10-07
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公开(公告)号： US08563781B2公开(公告)日： 2013-10-22
- 发明人: Michael Schelper , Christoph Stock , Klaus Ebel , Joaquim Henrique Teles , Ralf Pelzer
- 申请人： Michael Schelper , Christoph Stock , Klaus Ebel , Joaquim Henrique Teles , Ralf Pelzer
- 申请人地址： DE
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE
- 代理机构： Novak Druce Connolly Bove + Quigg LLP
- 主分类号： C07C45/27
- IPC分类号： C07C45/27
摘要：
Ketones of the formula II where A is optionally alkyl-substituted C2-C12-alkanediyl, R1 and R2 are each, independently of one another, C1-C6-alkyl, or R1 and R2 together form optionally alkyl-substituted C3-C10-alkanediyl, and R3 is hydrogen or C1-C6-alkyl, are prepared by reacting a cyclic olefin of the formula I with dinitrogen monoxide to form the ketone of the formula II. The ketone of the formula II can be further hydrogenated to form the saturated ketone of the formula III. Macrocyclic ketones of the formula III, e.g. muscone, are sought after as fragrances.