title: Biphasic catalysis using amphiphilic polyphenols-chelated noble metals as highly active and selective catalysts.
abstract: In the field of catalysis, it is highly desired to develop novel catalysts that combine the advantages of both homogeneous and heterogeneous catalysts. Here we disclose that the use of plant polyphenol as amphiphilic large molecule ligand/stabilizer allows for the preparation of noble metal complex and noble metal nanoparticle catalysts. These catalysts are found to be highly selective and active in aqueous-organic biphasic catalysis of cinnamaldehyde and quinoline, and can be reused at least 3 times without significant loss of activity. Moreover, the catalytic activity and reusability of the catalysts can be rationally controlled by simply adjusting the content of polyphenols in the catalysts. Our strategy may be extended to design a wide range of aqueous-organic biphasic catalysis system.
authors.affiliation: College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, PR China. maohui@ntu.edu.sg
authors.forename: Hui
authors.initials: H
authors.lastname: Mao
authors.forename: Hong
authors.initials: H
authors.lastname: Yu
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Xuepin
authors.initials: X
authors.lastname: Liao
mesh_terms: D000171:Acrolein / Q000031:analogs & derivatives / Q000737:chemistry; D002384:Catalysis; D002614:Chelating Agents / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D053768:Metal Nanoparticles / Q000737:chemistry; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D059808:Polyphenols / Q000737:chemistry*; D011804:Quinolines / Q000737:chemistry; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D002614:Chelating Agents; D008670:Metals; D059808:Polyphenols; D011804:Quinolines; D013501:Surface-Active Agents; D000171:Acrolein; C037219:quinoline; C012843:cinnamaldehyde