Palladium(II) complexes containing ONO tridentate hydrazone for Suzuki-Miyaura coupling of aryl chlorides in aqueous-organic media

被引：40

作者：

Arumugam, Vignesh ^{[1
]}

Kaminsky, Werner ^{[2
]}

Bhuvanesh, Nattamai S. P. ^{[3
]}

Nallasamy, Dharmaraj ^{[1
]}

机构：

[1] Bharathiar Univ, Dept Chem, Inorgan & Nanomat Res Lab, Coimbatore 641046, Tamil Nadu, India

[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA

[3] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

来源：

RSC ADVANCES | 2015年 / 5卷 / 73期

关键词：

C-C; CRYSTAL-STRUCTURE; PROTEIN-BINDING; DNA-BINDING; NICKEL; REAGENTS; CARBON; HECK; ELECTROCHEMISTRY; ORGANOBORANES;

D O I：

10.1039/c5ra10973f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Facile synthesis of three new palladium(II) complexes bearing heterocyclic hydrazone ligands are presented along with their structural characterization using IR, H-1 and C-13 NMR spectra. Molecular structures of the complexes determined by single-crystal XRD revealed a distorted square-planar geometry around the metal ion to which the hydrazone was attached in a tridentate fashion. Catalytic activity of these complexes tested towards the Suzuki-Miyaura cross coupling reaction of substituted aryl boronic acids with aryl chlorides in a water-toluene system (90 : 10%) without using any promoting additives or phase transfer agents, proved that they are highly active with 0.01 mol% loading under optimized conditions to afford 99% yield of the coupled product. Effects of temperature, solvent and base on the cross-coupling reaction were carried out as well. These complexes showed significant catalytic activity up to five cycles.

引用

页码：59428 / 59436

页数：9