Conformationally Stabilized Catalysts by Fluorine Insertion: Tool for Enantioselectivity Improvement
作者:Adrien Quintard、Jean-Baptiste Langlois、Daniel Emery、Jiri Mareda、Laure Guénée、Alexandre Alexakis
DOI:10.1002/chem.201102757
日期:2011.11.25
F rigid cats: The power of conformationally stabilized catalysts is demonstrated. By taking appropriate advantage of fluorine insertion (see scheme), purely conformational catalyst design led to a notable improvement in enantioselectivities from around 70 % to 91–98.5 % ee. The other advantage of this approach is the better understanding of the origin of the stereoselectivity in the given catalytic
F刚性猫:证明了构象稳定的催化剂的功能。通过充分利用氟的插入(参见方案),纯构象催化剂的设计可将对映选择性从大约70%ee显着提高到91–98.5%ee。这种方法的另一个优点是可以更好地理解给定催化体系中立体选择性的起源。