Dehydrative Direct Arylations of Arenes with Phenols via Ruthenium-Catalyzed C−H and C−OH Bond Functionalizations
作者:Lutz Ackermann、Michael Mulzer
DOI:10.1021/ol802252m
日期:2008.11.6
Phenols can be employed as proelectrophiles in operationally simple ruthenium-catalyzed dehydrative direct arylations, proceeding through chemo- and regioselective functionalizations of C-H and C-OH bonds.
Well-Defined Ruthenium(II) Carboxylate as Catalyst for Direct C–H/C–O Bond Arylations with Phenols in Water
[Ru(O2CMes)2(p-cymene)] enabled efficient direct arylations of unactivated C–H bonds with easily available, inexpensive phenols. Extraordinary chemoselectivity of the well-defined ruthenium catalyst set the stage for challenging C–H/C–O bond functionalizations to occur under solvent-free conditions as well as in water, and allowed first direct C–Hbondarylations with user-friendly diaryl sulfates as electrophiles