A palladium-loaded mesoporous polymer monolith as reusable heterogeneous catalyst for cross-coupling reactions

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• 作者：Dhiman Kundu ; Astam K. Patra ; Junji Sakamoto ; Hiroshi Uyama ; ^{uyama@chem.eng.osaka-u.ac.jp" class="auth_mail}
• 关键词：Polyacrylonitrile ; Green sustainable chemistry ; Metal coordination ; Phosphine free ; Suzuki&ndash ; Miyaura reaction
• 刊名：Reactive and Functional Polymers
• 出版年：June 2014
• 年：2014
• 卷：79
• 期：Complete
• 页码：8-13
• 全文大小：1102 K

文摘

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.