Aerobic oxidation of benzyl alcohol over TEMPO-functionalized polyimide as a heterogeneous catalyst

被引:10
作者
Nabae, Yuta [1 ]
Mikuni, Masatomo [1 ]
Takusari, Nobuhiro [1 ]
Hayakawa, Teruaki [1 ]
Kakimoto, Masa-aki [1 ]
机构
[1] Tokyo Inst Technol, Tokyo, Japan
关键词
Hyperbranched polyimide; TEMPO; aerobic oxidation; heterogeneous catalyst; recyclable; HYPERBRANCHED AROMATIC POLYIMIDES; EFFICIENT;
D O I
10.1177/0954008317696565
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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 A(2) + B-3 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.
引用
收藏
页码:646 / 650
页数:5
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