Catalytic Asymmetric Michael Reactions of α,β‐Unsaturated Ketones with Sulfonyl‐Containing Nucleophiles: Chiral Synthesis of (
<i>R</i>
)‐Muscone and (
<i>S</i>
)‐Celery Ketone
作者:Xiaomin Sun、Feng Yu、Tingting Ye、Xinmiao Liang、Jinxing Ye
DOI:10.1002/chem.201002418
日期:2011.1.10
An amine worth its salt: A highly enantioselective Michael addition reaction of α,β‐unsaturated ketones with the sulfonyl‐containing nucleophiles bis(phenylsulfonyl)methane and 1‐(phenylsulfonyl)propan‐2‐one, catalyzed by a chiral primary amine salt, has been developed and gives excellent enantioselectivities (see scheme). The methodology has successfully demonstrated its synthetic utility in the chiral
值得盐分的胺:手性伯胺盐催化的α,β-不饱和酮与含磺酰基的亲核试剂双(苯磺酰基)甲烷和1-(苯磺酰基)丙-2-酮的高度对映选择性迈克尔加成反应,已开发并具有出色的对映选择性(参见方案)。该方法已成功证明了其在(R)-麝香酮和(S)-芹菜酮的手性合成中的合成效用。