A systematic comparison of the cationic Lewis acidic Cu(II) and Zn(II) catalysts derived from bis(oxazoline), box, and pyridyl-bis(oxazoline), pybox, ligands is presented. Upon screening the catalysts in the Diels-Alder and aldol reactions, the Cu-based catalysts were found to be superior.
本文对衍生自双(
恶唑啉),盒和
吡啶基双(
恶唑啉),pybox,
配体的阳离子
路易斯酸性Cu(II)和Zn(II)催化剂进行了系统比较。在Diels-Alder反应和醛醇缩合反应中筛选催化剂后,发现Cu基催化剂是优良的。