Fig. 6: Control experiments with different NHC-ligands.
From: Copper(I)-catalyzed asymmetric 1,6-conjugate allylation

The importance of the presence of a phenol group in NHC-ligands is demonstrated.
From: Copper(I)-catalyzed asymmetric 1,6-conjugate allylation
The importance of the presence of a phenol group in NHC-ligands is demonstrated.