title: One-pot synthesis of Au@SiO(2) catalysts: a click chemistry approach.
abstract: Using the copper-catalyzed azide-alkyne cycloaddition "click" reaction, a library of triazole amphiphiles with a variety of functional polar "heads" and hydrophobic or superhydrophobic "tails" was synthesized. The amphiphiles were evaluated for their ability to stabilize small Au nanoparticles, and, at the same time, serve as templates for nanocasting porous SiO2. One of the Au@SiO2 materials thus prepared was found to be a highly active catalyst for the Au nanoparticle-catalyzed regioselective hydroamination of alkynes.
authors.affiliation: Division of Physical Sciences and Engineering and KAUST Catalysis Center and ‡KAUST Advanced Nanofabrication Imaging and Characterization Core Laboratory, King Abdullah University of Science and Technology (KAUST) , Thuwal, 23955-6900, Kingdom of Saudi Arabia.
authors.forename: Vera A
authors.initials: VA
authors.lastname: Solovyeva
authors.forename: Khanh B
authors.initials: KB
authors.lastname: Vu
authors.forename: Zulkifli
authors.initials: Z
authors.lastname: Merican
authors.forename: Rachid
authors.initials: R
authors.lastname: Sougrat
authors.forename: Valentin O
authors.initials: VO
authors.lastname: Rodionov
mesh_terms: D000480:Alkynes / Q000138:chemical synthesis; D001386:Azides / Q000737:chemistry; D002384:Catalysis; D057930:Click Chemistry / Q000379:methods*; D061565:Cycloaddition Reaction; D017612:Gold Compounds / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D054852:Small Molecule Libraries; D013501:Surface-Active Agents / Q000737:chemistry; D014230:Triazoles / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D000480:Alkynes; D001386:Azides; D017612:Gold Compounds; D054852:Small Molecule Libraries; D013501:Surface-Active Agents; D014230:Triazoles; D012822:Silicon Dioxide
keywords: click chemistry; fluorous surfactant; gold nanoparticles; hydroamination