Direct Allylation of Active Methylene Compounds with Allylic Alcohols by Use of Palladium/Phosphine‐Borane Catalyst System.

Abstract: The C−C bond formation between active methylene compounds and allylic alcohols has been newly developed by using a palladium complex as a catalyst together with a phosphine‐borane ligand. The best phosphine‐borane ligand for this direct allylation has been revealed to be Ph2P(CH2)4(9‐BBN) to produce a variety of desirable allylated products in high yields. [ABSTRACT FROM AUTHOR]