Remote induction of stereoselective 1,2-addition of aryl Grignard reagents to β-sulfinyl enones
作者:Toshinori Nakakita、Motofumi Miura、Masaharu Toriyama、Shigeyasu Motohashi、Mikhail V. Barybin
DOI:10.1016/j.tetlet.2013.12.108
日期:2014.1
Optically active tert-allylic alcohols constitute important and often challenging targets in organic synthesis. In this work, we employed a β-sulfinyl moiety as a remote chiral auxiliary to effect asymmetric 1,2-addition of aryl Grignard reagents to enones to form a variety of optically active tert-allylic alcohols. The absolute configuration of a representative alcohol product was determined by X-ray
旋光性叔烯丙基醇是有机合成中重要且通常具有挑战性的目标。在这项工作中,我们使用β-亚磺酰基部分作为远程手性助剂,以实现芳基格氏试剂与烯酮的不对称1,2-加成反应,从而形成多种光学活性的叔烯丙基醇。代表性醇产物的绝对构型通过X射线晶体学测定。