A method for the stereospecific synthesis of trisubstituted exocyclic allylic alcohols is described. Using this methodology in combination with the Sharpless catalytic asymmetric epoxidation, an efficient synthesis of (R)-(-)-9, an important intermediate for anthracycline synthesis, has been accomplished in 36% overall yield from 14 with 93% ee.
描述了一种立体定向合成三取代环外
烯丙醇的方法。使用该方法与 Sharpless 催化不对称环
氧化相结合,可以有效合成
蒽环类合成的重要
中间体 (R)-(-)-9,14 的总产率为 36%,ee 为 93%。