Tuning of Regioselectivity in the Coupling Reaction Involving Allenic/Propargylic Palladium Species
作者:Shengming Ma、Aibin Zhang
DOI:10.1021/jo0111098
日期:2002.4.1
Two different types of coupling patterns for the Pd(0)-catalyzed coupling reaction of allenic/propargylic zinc reagents with organic halides or propargylic carbonates (acetate) with the corresponding organometallicreagents were observed. After studying the controlling factors on the regioselectivity of this reaction, we demonstrated that the steric hindrance of both reactants and the types of organic