C(sp<sup>2</sup>)–X (X = Cl, Br, and I) Reductive Eliminations from Well-Defined Gold(III) Complexes: Concerted or Dissociation Pathways?
作者:Kai Kang、Shihan Liu、Chunhui Xu、Zehai Lu、Shuanshuan Liu、Xuebing Leng、Yu Lan、Qilong Shen
DOI:10.1021/acs.organomet.0c00784
日期:2021.7.26
A series of halogenated organogold(III) complexes cis-[(L)Au(ArF)(Cl)(X)] (L = phosphine ligand, ArF = 2,2′,3,3′,5,5′,6,6′-octafluoro-[1,1′-biphenyl]-4-yl, and X = Cl, Br, I) were prepared, and their C(sp2)–X reductive eliminations were investigated in detail. In contrast with previous reports that C–X bond reductive eliminations from Au(III) complexes generally occurred via ligand dissociation pathways
一系列卤化有机金 (III) 配合物顺式-[(L)Au(Ar F )(Cl)(X)] (L = 膦配体,Ar F = 2,2',3,3',5,5' ,6,6'-八氟-[1,1'-联苯]-4-基和X = Cl, Br, I)被制备,并详细研究了它们的C(sp 2 )-X还原消除。与之前报道的 Au(III) 配合物的 C-X 键还原消除通常通过配体解离途径发生相反,我们的研究表明,C(sp 2 )-X 从cis -[(L)Au(Ar F)(Cl)(X)] 是通过三元过渡态的同步过程。这一结论得到了动力学研究、添加的膦配体和n- Bu 4 NCl 的影响研究、反应温度的影响以及 DFT 计算的支持。