申请人:CALIFORNIA INSTITUTE OF TECHNOLOGY
公开号:US20140194604A1
公开(公告)日:2014-07-10
The present invention is directed to methods for oxidizing internal olefins to ketones. In various embodiments, each method comprising contacting an organic substrate, having an initial internal olefin, with a mixture of (a) a biscationic palladium salt; and (b) an oxidizing agent; dissolved or dispersed in a solvent system to form a reaction mixture, said solvent system comprising at least one C
2-6
carbon nitrile and optionally at least one secondary alkyl amide, said method conducted under conditions sufficient to convert at least 50 mol % of the initial internal olefin to a ketone, said ketone positioned on a carbon of the initial internal olefin. The transformation occurs at room temperature and shows wide substrate scope. Applications to the oxidation of seed oil derivatives and a bioactive natural product are described.
本发明涉及将内烯烃氧化为酮的方法。在各种实施方式中,每种方法包括将具有初始内烯烃的有机底物与(a)双阳离子钯盐的混合物;和(b)氧化剂接触,溶解或分散在溶剂体系中形成反应混合物,所述溶剂体系包括至少一种C2-6碳腈和可选地至少一种次烷基酰胺,所述方法在足以将初始内烯烃的至少50摩尔%转化为酮的条件下进行,所述酮位于初始内烯烃的碳上。该转化在室温下发生,并显示出广泛的底物范围。描述了将其应用于种子油衍生物和生物活性天然产物的氧化。