Asymmetric Aldol Reaction Catalyzed by the Anion of an Ionic Liquid
作者:Vincent Gauchot、Andreea R. Schmitzer
DOI:10.1021/jo300737u
日期:2012.6.1
its applications as a catalyst for the asymmetric aldolreaction. By performing the aldolreaction in [Bmim]NTf2 as a solvent, we report excellent isolated yields of the aldol product (up to 99%), as well as modest to excellent selectivities (dr superior to 99:1. ee up to 89%). Mechanistic insights and the origins of the selectivity of the aldolreaction are discussed on the basis of the results obtained
Catalytic Anions Embedded into Avidin: Importance of Their Chirality and the Chiral Environment on the Stereocontrol of the Aldol Reaction
作者:Vincent Gauchot、Andreea R. Schmitzer
DOI:10.1021/jo5002406
日期:2014.3.21
Several catalytic anions bearing a pseudo-dipeptide scaffold, in combination with a biotinylated imidazolium cation, were prepared. The assembly of these salts with avidin resulted in the formation of stable biohybridcatalysts, active in ionicliquid/aqueous media for the aldol reaction. By using natural and non-natural amino alcohols as “side chains” for the proline derivative anion, we studied the