Halogen‐Bridged Methylnaphthyl Palladium Dimers as Versatile Catalyst Precursors in Coupling Reactions
作者:Nardana Sivendran、Nico Pirkl、Zhiyong Hu、Angelino Doppiu、Lukas J. Gooßen
DOI:10.1002/anie.202110450
日期:2021.11.15
Halide-bridged 1- and 2-methylnaphthyl palladium dimers are presented as convenient, yet highly efficient palladium sources for cross-coupling catalysis. The bench-stable complexes smoothly react with various ligands yielding monoligated palladium precatalysts. These display record-setting activity in various catalytic reactions, clearly beyond that achievable by ligand screening alone.
Palladium-catalyzed Heck coupling of arylhydrazines via C–NHNH<sub>2</sub>bond activation
作者:Jin-Biao Liu、Fu-Jiao Chen、Na Liu、Jiang Hu
DOI:10.1039/c5ra05131b
日期:——
A novel palladium-catalyzed Heck coupling reaction of arylhydrazines with olefins is described, which affords various styrenes with high efficiency. This transformation proceeds through a C–NHNH2bond activation under mild conditions.
Efficient Aqueous-Phase Heck Reaction Catalyzed by a Robust Hydrophilic Pyridine-Bridged Bisbenzimidazolylidene-Palladium Pincer Complex
作者:Tao Tu、Zhixun Wang、Xike Feng、Weiwei Fang
DOI:10.1055/s-0030-1259723
日期:2011.4
The first efficient example of NHC-palladium pincer complexcatalyzed aqueous Heck reaction with extremely low catalyst loadingwas realized without obvious hydrolysis of products by using a robusthydrophilic pyridine-bridged bisbenzimidazolylidene-palladiumcomplex as a molecular catalyst, which tolerated various electronicproperties of substituted functional groups in arenes.
Beyond Tertiary Amines: Introducing Secondary Amines via Palladium/Norbornene‐Catalyzed Ortho Amination
作者:Xin Liu、Qi Zhu、Guangbin Dong
DOI:10.1002/anie.202404042
日期:——
The introduction of secondary amines at the aryl iodide ortho position by the palladium/norbornene (Pd/NBE) catalysis has been developed, which leads to versatile synthetic applications, such as primary amino group installation and concise heterocycle formations.