Palladium-catalyzed and KOtBu-promoted Caryl-Oalcoholic coupling: an efficient one-pot synthesis of oxygen containing fused rings

An efficient one-pot synthetic method has been developed for the synthesis of oxygen containing fused rings from 2′-bromo-biaryl-2-carbaldehyde via tandem reduction followed by palladium-catalyzed and KOtBu-promoted Caryl-Oalcoholic coupling.