Copper‐Catalyzed Enantioselective Formation of C−CF
<sub>3</sub>
Centers from β‐CF
<sub>3</sub>
‐Substituted Acrylates and Acrylonitriles
作者:Pauline Poutrel、Maria V. Ivanova、Xavier Pannecoucke、Philippe Jubault、Thomas Poisson
DOI:10.1002/chem.201904192
日期:2019.12.2
AbstractThe catalytic asymmetric synthesis of β‐trifluoromethylated esters or nitriles is reported. The use of an in situ formed chiral Cu−H complex allowed the enantioselective reduction of β‐trifluoromethylated acrylates or acrylonitriles. The reaction proceeds smoothly affording the corresponding enantioenriched products in good to excellent yields and outstanding enantioselectivities (up to 98 % ee). The mechanism of the reaction was studied, and a plausible reaction pathway was suggested accordingly. Finally, the versatility of the products was highlighted through functional group manipulations.