title: New mechanistic insights regarding Pd/Cu catalysts for the Sonogashira reaction: HRMAS NMR studies of silica-immobilized systems.
abstract: The title technique, high-resolution magic angle spinning NMR of suspensions, constitutes a powerful new tool for investigating the structures and mobilities of immobilized species and, thus, for optimizing heterobimetallic catalyst systems, such as the Sonogashira coupling of terminal alkynes and aryl halides.
authors.affiliation: Organic Chemistry Department, University of Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Posset
authors.forename: Janet
authors.initials: J
authors.lastname: Blümel
mesh_terms: D000480:Alkynes / Q000138:chemical synthesis / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D012680:Sensitivity and Specificity; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D000480:Alkynes; D009942:Organometallic Compounds; D010165:Palladium; D012822:Silicon Dioxide; D003300:Copper