Chemistry Letters, Vol.36, No.11, 1302-1303, 2007
Oligoarene strategy for catalyst development. Hydroxylated oligoarene-type Phosphines for palladium-catalyzed cross coupling
Various oligoarene-type phosphines having a hydroxy group were synthesized based on a two-step repetitive method that we developed, and these phosphines were used as ligands for palladium in catalytic cross coupling with Grignard reagents. The study revealed that a hydroxylated terphenylphosphine accelerated the rate of the cross coupling of o-bromophenol and exhibited preference for the ortho-isomer over the meta- and para-isomers.