2008

Polyphenyl derivativesQ 0700 Aerobic Ligand-Free Suzuki Coupling Reaction of Aryl Chlorides Catalyzed by

in situ Generated Palladium Nanoparticles at Room Temperature. — A detailed study of recently published preliminary results is presented. The Suzuki reaction cata-lyzed by the in situ generated palladium nanoparticles in PEG-400 can be carried out much quicker than using the prepared particles under the same conditions. The arylbo-ronic acids play roles as both a substrate and an assistant reductant and accelerator of the formation of palladium nanoparticles. A suitable excess amount of the boronic acid is necessary to complete the reactions. — (HAN, W.; LIU*, C.; JIN, Z.; Adv. Synth. Catal. 350 (2008) 3, 501-508; State Key Lab. Fine Chem., Dalian Univ. Technol., Dalian 116012, Peop. Rep. China; Eng.) — Klein

27- 094