title: Palladium-catalyzed intramolecular reductive cross-coupling of Csp2-Csp3 bond formation.
abstract: A Pd-catalyzed efficient reductive cross-coupling reaction without metallic reductant to construct a Csp(2) -Csp(3) bond has been reported. A Pd(IV) 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 Pd(0/II/IV) in one transformation. The oxidative addition from Pd(II) to Pd(IV) was partially demonstrated to be a radical process by self-oxidation of substrate without additional oxidants. Furthermore, the solvent was proved to be the reductant for this transformation through XPS analysis.
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062 (P. R. China); School of Chemical Engineering, Shandong University of Technology, Zibo, 255049 (P. R. China).
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.forename: Jianpeng
authors.initials: J
authors.lastname: Wei
authors.forename: Zongjun
authors.initials: Z
authors.lastname: Qiao
authors.forename: Yana
authors.initials: Y
authors.lastname: Fu
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Jiang
keywords: C-C bond formation; Csp3X bond; catalysis; cross-coupling; palladium