Palladium-Catalyzed Intramolecular Reductive Cross-Coupling of Csp<sup>2</sup>Csp<sup>3</sup>Bond Formation
作者:Hui Liu、Jianpeng Wei、Zongjun Qiao、Yana Fu、Xuefeng Jiang
DOI:10.1002/chem.201403093
日期:2014.7.1
A Pd‐catalyzed efficient reductive cross‐coupling reaction without metallic reductant to construct a Csp2Csp3 bond has been reported. A PdIV complex was proposed to be a key intermediate, which subsequently went through double oxidative addition and double reductive elimination to produce the cross‐coupling products by involving Pd0/II/IV in one transformation. The oxidative addition from PdII to
甲Pd催化的还原效率的交叉偶联反应没有金属还原剂来构造CSP 2 CSP 3键已经报道。Pd IV络合物被认为是关键的中间体,随后通过双氧化加成和双还原性消除,使Pd 0 / II / IV参与一次转化,从而产生交叉偶联产物。从Pd II到Pd IV的氧化加成被部分证明是通过底物的自氧化而没有其他氧化剂的自由基过程。此外,通过XPS分析证明溶剂是该转化的还原剂。