N4-Tetradentate Dicarboxyamidate/Dipyridyl Palladium Complexes as Robust Catalysts for the Heck Reaction of Deactivated Aryl Chlorides
作者:Pottabathula Srinivas、Pravin R. Likhar、Hariharasarma Maheswaran、Balasubramanian Sridhar、Krishnan Ravikumar、Mannepalli Lakshmi Kantam
DOI:10.1002/chem.200802144
日期:2009.2.2
Structurally well defined and thermally stable PdII complexes, derived from N4‐tetradentate dicarboxyamide/dipyridyl ligands, were evaluated as catalysts for the Heck reactions of deactivated aryl chlorides and olefins (see scheme). The concept of using an anionic carboxyamide as an ancillary ligand for palladium demonstrated here provides a new opportunity for the development of phosphine‐free transition‐metal
从N4-四齿二羧酰胺/二吡啶基配体衍生的结构明确且热稳定的Pd II复合物被评估为失活的芳基氯化物和烯烃的Heck反应的催化剂(参见方案)。本文证明了使用阴离子羧酰胺作为钯的辅助配体的概念为开发无膦过渡金属催化提供了新的机会。