Sterically Demanding Flexible Phosphoric Acids for Constructing Efficient and Multi‐Purpose Asymmetric Organocatalysts
作者:Fabian Scharinger、Ádám Márk Pálvölgyi、Melanie Weisz、Matthias Weil、Christian Stanetty、Michael Schnürch、Katharina Bica‐Schröder
DOI:10.1002/anie.202202189
日期:2022.6.27
The ability of counterion enhanced catalysis to promote the asymmetric functionalization of enones was demonstrated. Combining the use of sterically demanding phosphoric acids with simple chiral diamines allowed for the preparation of simple ion-paired and highly tunable organocatalysts. The latter could be applied in four different asymmetric transformations, providing a highly enantioselective access
证明了抗衡离子增强催化促进烯酮不对称功能化的能力。将空间要求高的磷酸与简单的手性二胺结合使用,可以制备简单的离子对和高度可调的有机催化剂。后者可应用于四种不同的不对称转化,在所有情况下都提供对两种产物对映体的高度对映选择性访问。