La reaction tolere la presence de divers groupes fonctionnels et peut etre appliquee a des composes avec des fonctions carbonylees et lactones
La reaction tolere laexistence de divers groupes fonctionnels et peut etre appliquee a des composes avec des fonctions carbonylees etlactones
β-Alkyl-α-allylation of Michael Acceptors through the Palladium-Catalyzed Three-Component Coupling between Allylic Substrates, Trialkylboranes, and Activated Olefins
作者:Nitin T. Patil、Zhibao Huo、Yoshinori Yamamoto
DOI:10.1021/jo0524876
日期:2006.3.1
The palladium-catalyzed three-component β-alkyl-α-allylation reaction of activated olefins has been achieved. For example, in the presence of 5 mol % of Pd(PPh3)4, the reaction of benzylidenemalononitrile 1a with Et3B and allyl acetate 2a in THF proceeded smoothly at 40 °C to give the corresponding β-ethyl-α-allylated product 3a in 81% yield.