Porous chitosan-MnO2 nanohybrid: a green and biodegradable heterogeneous catalyst for aerobic oxidation of alkylarenes and alcohols

2015 ◽  
Vol 30 (3) ◽  
pp. 154-159 ◽  
Author(s):  
Ahmad Shaabani ◽  
Mahmoud Borjian Boroujeni ◽  
Mohmmad Sadegh Laeini
Keyword(s):  
Heterogeneous Catalyst ◽  
Aerobic Oxidation ◽  
Porous Chitosan

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

2017 ◽  
Vol 29 (6) ◽  
pp. 646-650 ◽  
Author(s):  
Yuta Nabae ◽  
Masatomo Mikuni ◽  
Nobuhiro Takusari ◽  
Teruaki Hayakawa ◽  
Masa-aki Kakimoto
Keyword(s):  
Benzyl Alcohol ◽  
Heterogeneous Catalyst ◽  
Aerobic Oxidation ◽  
Pyromellitic Dianhydride ◽  
Oxidation Of Benzyl Alcohol ◽  
Selective Aerobic Oxidation ◽  
End Capping

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.

A magnetic porous chitosan-based palladium catalyst: a green, highly efficient and reusable catalyst for Mizoroki–Heck reaction in aqueous media

2015 ◽  
Vol 39 (10) ◽  
pp. 7988-7997 ◽  
Author(s):  
Barahman Movassagh ◽  
Nasrin Rezaei
Keyword(s):  
Heterogeneous Catalyst ◽  
Palladium Catalyst ◽  
Heck Reaction ◽  
Aqueous Media ◽  
Reusable Catalyst ◽  
Highly Efficient ◽  
Highly Active ◽  
Porous Chitosan ◽  
High Yields ◽  
Recyclable Heterogeneous Catalyst

We have prepared a highly active and recyclable heterogeneous catalyst for the Heck reaction in aqueous media in high yields.

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