Copper(I)-catalyzed enantioselective 1,3-dipolar cycloaddition of azomethine ylides with vinyl sulfones
The combination of copper(I)-Taniaphos (5 mol%) is an efficient Lewis acid catalyst for the promotion of the asymmetric 1,3-dipolar cycloaddition of azomethine ylides to aryl vinyl sulfones, providing 3-sulfonylpyrrolidines in good yields and with nearly
Llamas, Tomas,Arrayas, Ramon Gomez,Carretero, Juan Carlos