Secondary stereocontrolling interactions in chiral Brønsted acid catalysis: study of a Petasis–Ferrier-type rearrangement catalyzed by chiral phosphoric acids
作者:Kyohei Kanomata、Yasunori Toda、Yukihiro Shibata、Masahiro Yamanaka、Seiji Tsuzuki、Ilya D. Gridnev、Masahiro Terada
DOI:10.1039/c4sc00611a
日期:——
Chiral phosphoric acids have emerged as promising asymmetric Brønsted acid catalysts that harness hydrogen bonding interactions as key stereocontrolling elements. A new approach to chiral phosphoric acid catalysis through ion-pairing interactions between the anionic conjugate base of the catalyst and a cationic electrophile has recently attracted attention. However, the mechanism of stereocontrol through