In high-temperature water a series of benzyl and allylic alcohols reacted with 1,3-dicarbonyl compounds and activated aromatic compounds to give the alkylated products without added catalysts.
Hydrogen-Bond-Assisted Activation of Allylic Alcohols for Palladium-Catalyzed Coupling Reactions
作者:Yasemin Gumrukcu、Bas de Bruin、Joost N. H. Reek
DOI:10.1002/cssc.201300723
日期:2014.3
We report direct activation of allylicalcohols using a hydrogen‐bond‐assisted palladium catalyst and use this for alkylation and amination reactions. The novel catalyst comprises a palladium complex based on a functionalized monodentate phosphoramidite ligand in combination with urea additives and affords linear alkylated and aminated allylic products selectively. Detailed kinetic analysis show that
Friedel–Crafts-Type Allylation of Nitrogen-Containing Aromatic Compounds with Allylic Alcohols Catalyzed by a [Mo<sub>3</sub>S<sub>4</sub>Pd(η<sup>3</sup>-allyl)] Cluster
the Friedel–Crafts-type allylic alkylation of nitrogen-containing aromaticcompounds catalyzed by a [Mo3S4Pd(η3-allyl)] cluster is achieved. With a 3 mol % catalyst loading in acetonitrile at reflux or 60 °C, a variety of N,N-dialkylanilines and indoles reacted smoothly with allylic alcohols to afford the Friedel–Crafts-type allylation products in good to excellent yields with high levels of regioselectivity