Influence of the Double-Bond Geometry of the Michael Acceptor on Copper-Catalyzed Asymmetric Conjugate Addition
作者:Magali Vuagnoux-d'Augustin、Alexandre Alexakis
DOI:10.1002/ejoc.200700424
日期:2007.12
aspects, a study of the influence of the (E)/(Z) double-bond geometry of the Michael acceptor on the enantioselectivity of copper-catalyzed asymmetric conjugate addition reactions has been realized. In spite of numerous articles concerning copper-catalyzed asymmetric conjugate addition reactions, the major factors of such a reaction are quite difficult to elucidate. Although our experiments have not allowed
着眼于机理方面,研究了迈克尔受体的 (E)/(Z) 双键几何结构对铜催化不对称共轭加成反应的对映选择性的影响。尽管有许多关于铜催化不对称共轭加成反应的文章,但很难阐明这种反应的主要因素。虽然我们的实验不允许我们定义严格的规则,但他们强调了一些在考虑铜试剂形成双键时不可忽视的因素,例如 (E)/(Z) 异构化和空间方面,这可能会导致改变底物的反应构象。电子效应还可以改变双键的极化并影响亲核攻击。