Arylation of ketones with preservation of the chirality in configurationally unstable α‐chiral ketones has been achieved by the palladium‐catalyzed cross‐coupling reaction between tosylhydrazones and aryl halides (see scheme; Boc=tert‐butoxycarbonyl, Ts=4‐toluenesulfonyl). The regioselectivity in the β‐hydride elimination step is key for the retention of configuration.
爸爸是一个罗林酮:在构型上不稳定的α手性酮与手性的保存酮的芳基化已被
钯催化交叉偶联
甲苯磺酰腙和芳基卤化物之间的反应(参见方案来实现将Boc =叔丁氧羰基中,Ts = 4-
甲苯磺酰基)。β-
氢化物消除步骤中的区域选择性是保持构型的关键。