Reactive & Functional Polymers, Vol.79, 8-13, 2014
A palladium-loaded mesoporous polymer monolith as reusable heterogeneous catalyst for cross-coupling reactions
A new palladium catalyst based on a mesoporous polymer monolith has been introduced. A polyacrylonitrile (PAN) monolith prepared by a phase separation technique was used as precursor material for chemical modification; the nitrile groups on the monolith surface were transformed into amidine groups and then bound to palladium dichloride via coordination. A series of Suzuki-Miyaura cross-coupling reactions were successfully demonstrated by using the monolith as catalyst. Moreover, the monolith was found to exhibit excellent stability for repeated use. (C) 2014 Elsevier Ltd. All rights reserved.
Keywords:Polyacrylonitrile;Green sustainable chemistry;Metal coordination;Phosphine free;Suzuki-Miyaura reaction