One step entry to P,O- and P,N-type heterocyclic tertiary phosphine ligands and application in Suzuki–Miyaura cross-coupling reactions
作者:Ehsan Ullah、James McNulty、Christine Kennedy、Al Robertson
DOI:10.1039/c1ob05426k
日期:——
A direct synthesis of conformationally mobile P,O- and P,N-type heterocyclic phosphine ligands is described involving radical-mediated addition of diisobutylphosphine to olefinic-heterocycles. Palladium complexes of the P,N-ligand were determined to be highly active in the Suzuki-Miyaura cross-coupling reactions, including deactivated aryl chlorides.
描述了构象可移动的P,O-和P,N-型杂环膦配体的直接合成,包括自由基介导的二异丁基膦加成至烯烃-杂环。经测定,P,N-配体的钯配合物在Suzuki-Miyaura交叉偶联反应(包括失活的芳基氯化物)中具有很高的活性。