Aerobic oxidation of benzyl alcohol over TEMPO-functionalized polyimide as a heterogeneous catalyst. (August 2017)

• Record Type: Journal Article
• Authors: Nabae, Yuta; Mikuni, Masatomo; Takusari, Nobuhiro; Hayakawa, Teruaki; Kakimoto, Masa-aki
• Other Names: Shaplov Alexander guest-editor.
• Is Part Of: High performance polymers. Volume 29:Number 6(2017)
• Page Start: 646
• Page End: 650
• Publication Date: 2017-08
• Subjects: Hyperbranched polyimide -- TEMPO -- aerobic oxidation -- heterogeneous catalyst -- recyclable; Polymerization -- Periodicals; Polymers -- Periodicals; 547.7
• DOI: 10.1177/0954008317696565
• Languages: English
• ISSNs: 0954-0083

Abstract

Hyperbranched polyimide functionalized with 2, 2, 6, 6-tetramethylpiperidine-1-oxyl (TEMPO) was studied as a heterogeneous catalyst for the aerobic oxidation of benzyl alcohol. The catalyst material was synthesized by an A2 + B3 polymerization of pyromellitic dianhydride and 1, 3, 5-tris(4-aminophenyl)benzene followed by an end-capping reaction with 4-amino-TEMPO. Selective aerobic oxidation of benzyl alcohol to benzaldehyde has been demonstrated using the prepared materials as a catalyst. The recyclability of these materials has been confirmed by recycling tests using the catalyst collected by filtration.