RESUMEN
Rhodium(III)-catalyzed remote meta-selective-C-H alkenylation of phenol derivatives has been developed using a traceless organosilicon template as the directing group. This transformation proceeds smoothly with good yields and high meta-selectivities toward a series of phenol and alkene substrates. In addition, this protocol provides an effective strategy for late-stage transformations of various meta-alkenylated aromatic compounds.
RESUMEN
A traceless organosilicon template-directed meta-selective-C-H alkenylation of phenols was realized with good yields and high selectivities. The template was readily removable through F--promoted O-Si cleavage under extremely mild conditions or recyclable through a p-TSA catalyzed process. The product was successfully applied in the preparation of a series of meta-alkenylated aromatic compounds.
