Evaluation of the Relationship between the Catalyst Structure and Regio- as well as Stereoselectivity in the Chiral Ammonium Bifluoride–Catalyzed Asymmetric Addition of Silyl Nitronates to α,β-Unsaturated Aldehydes

Unique relationship between the catalyst structure and regio- and stereoselectivity in the chiral quaternary ammonium bifluoride–catalyzed asymmetric addition of silyl nitronates to α,β-unsaturated aldehydes has been reported.