Currently, the most effective and economic way to convert an alkene into an optically active alcohol is the two-step sequence: hydrosilylation/oxidation. Much work has been devoted to elucidating effective catalysts for this process, but hitherto only one effective and highly stereoselective process has been available. Herein we present a novel catalytic system for the asymmetric hydrosilylation of
目前,将烯烃转化为旋光醇的最有效和最经济的方法是两步序列:氢化
硅烷化/氧化。许多工作致力于阐明该过程的有效催化剂,但迄今为止只有一种有效且高度立体选择性的过程可用。在此,我们提出了一种用于芳族烯烃不对称氢化
硅烷化的新型催化体系,该体系以高产率和对该反应观察到的最高对映选择性(高达 99% ee)得到产物。该反应对各种取代的芳族烯烃有效,在 Tamao 氧化后可以高产率获得几乎光学纯的
苄醇。