Cobalt-catalyzed Selective CF Bond Activation and Alkylation of Polyfluoroaryl Imines
作者:Faguan Lu、Hongjian Sun、Xiaoyan Li
DOI:10.1002/cjoc.201300340
日期:2013.7
In this paper the CF bond activation of polyfluoroaryl imines is explored at cobalt(0) center with an imine‐N atom as an anchoring group. The reaction of F5C6‐CHN‐(2′‐ClC6H4) (2) and F5C6‐CHN‐C6H5 (3) with Co(PMe3)4 afforded the CF bond activation products (ortho‐F4C6‐CHN‐(2′‐ClC6H4))Co(I)(PMe3)3 (5) and (ortho‐F4C6‐CHN‐C6H5)Co(II)(F)(PMe3)2 (6), while only π‐(CN) coordinated cobalt(0) complex
在本文中,以亚胺-N原子为锚定基团在钴(0)中心探索了聚氟芳基亚胺的CF键活化。F 5 C 6 -CHN-(2′-ClC 6 H 4)(2)和F 5 C 6 -CHN- C6 H 5(3)与Co(PMe 3)4的反应提供了ç F键活化产物(邻-F 4 ç 6 -CHN-(2'-的ClC 6 H ^ 4))的Co(I)(PME 3)3(5)和(邻-F 4 C 6 -CHN- C6 H 5)Co(II)(F)(PMe 3)2(6),而只有π-(CN)配位钴(0 )(2,4,5-F 3 C 6 H 2 -CHN-(4′-ClC 6 H 4))Co(0)(PMe 3)3(4)是从2,4,5获得的-F 3 C 6 H 2 -CHN-(4′-ClC 6 H 4)(1)不带CF键活化。配合物4 – 6通过X射线单晶衍射表征。还发现在有机溶剂中,N-(全氟亚苄基)苯胺的二烷基化反应可