A Magnetic‐Nanoparticle‐Supported 4‐<i>N</i>,<i>N</i>‐Dialkylaminopyridine Catalyst: Excellent Reactivity Combined with Facile Catalyst Recovery and RecyclabilityCiarán Ó Dálaigh, Stephen J. Connon, Serena A. Cussen et al.|Angewandte Chemie International Edition|2007Cited by 269