title: Threefold cross-linked polystyrene-triphenylphosphane hybrids: mono-P-ligating behavior and catalytic applications for aryl chloride cross-coupling and C(sp(3))-H borylation.
abstract: Covalently bound polystyrene-phosphane hybrids were prepared by a method based on radical emulsion polymerization of styrenes in the presence of a tris(p-vinylphenyl)phosphane cross-linker. These hybrids favor mono-P-ligation to transition-metal complexes and are useful for challenging catalysis, such as Pd-catalyzed CC/CN couplings with unactivated chloroarenes and Ir- or Rh-catalyzed C(sp(3) )H borylations.
authors.affiliation: Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810 (Japan) http://wwwchem.sci.hokudai.ac.jp/∼orgmet/index.php?id=25.
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Iwai
authors.forename: Tomoya
authors.initials: T
authors.lastname: Harada
authors.forename: Kenji
authors.initials: K
authors.lastname: Hara
authors.forename: Masaya
authors.initials: M
authors.lastname: Sawamura
keywords: CH activation; borylation; cross-coupling; phosphanes; polystyrene-supported catalysts