Base free Suzuki acylation reactions of sodium (aryl trihydroxyborate) salts: A novel synthesis of substituted aryl ketones
作者:Siphamandla Sithebe、Patience Molefe
DOI:10.1016/j.jorganchem.2017.07.001
日期:2017.10
The first simple and efficient base free Pd(PPh3)4 catalysed synthesis of substituted aryl ketones from acyl chlorides and easily accessible sodium aryl trihydroxyborate salts in aqueous toluene is reported. The reaction conditions appeared versatile and tolerable to a variety of functional groups including, CF3, OMe, SMe, Br, NO2, F, OH and NH2 furnishing 25 examples of substituted aryl ketones in
据报道,第一个简单而有效的无碱Pd(PPh 3)4催化是从酰氯和甲苯水溶液中易得的芳基三羟基硼酸钠盐合成取代的芳基酮。反应条件看来是通用的,并且对包括CF 3,OMe,SMe,Br,NO 2,F,OH和NH 2在内的各种官能团具有耐受性在24小时内提供25个取代芳基酮的实例,分离产率高达96%。除了具有高纯度,与硼酸相比易于分离和方便之外,随后还可使用芳基三羟基硼酸钠,而无需添加过量的活化剂,并且在使用精确的反应化学计量方面更人性化。