Interenational sess.

[2A06-08] Interenational sess.(6)

Fri. Nov 12, 2021 11:15 AM - 12:00 PM Room-A (Room-A/Hakodate Areana)

Chair:Akihiro Yoshida(Hirosaki Univ.)

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11:15 AM - 11:30 AM

[2A06] Sugars dehydration with Nb-based mixed metal oxide catalysts

○Daniele Padovan¹, Hideki Kato², Atsushi Fukuoka¹, Kiyotaka Nakajima¹ (1. Institute for Catalysis, Hokkaido University, 2. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University)

Mixed metal oxides constituted of Nb-based Lewis acid and a second cation (A³⁺ type) are employed in sugars valorization processes. The role of the second metal and phosphate groups will tune acid-base properties to achieve high efficient catalysis.

11:30 AM - 11:45 AM

[2A07] Synthesis of Bio Based Polyesters by Acyclic Diene Metathesis (ADMET) Polymerization in Ionic Liquid.

○Xiuxiu Wang¹, Weizhen Zhao², KOTOHIRO NOMURA¹ (1. Tokyo Metropolitan University, 2. Institute of Process Engineering, Chinese Academy of Sciences)

In this presentation, we wish to introduce synthesis of high molecular weight bio-based polyesters by acyclic diene metathesis (ADMET) polymerization of conjugated dienes (containing two ester functionalities) in ionic liquid. Since the ADMET polymerization is the condensation polymerization accompanied by-production of ethylene, the method conducted in vacuo is thus very useful for synthesis of high molecular weight polymers. Moreover, the catalyst and polymers can be seperated by addition of organic solvent by phase seperation. More details will be presented in the symposium.

11:45 AM - 12:00 PM

[2A08] Reductive amination of 5-formyl-2-furancarboxylic acid to 5-(aminomethyl)furan-2-carboxylic acid

○Tat Boonyakarn¹, Jan J Wiesfeld¹, Atsushi Fukuoka¹, Takato Mitsudome², Kiyotaka Nakajima^1,3 (1. Institute for Catalysis, Hokkaido University, 2. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 3. JST-MIRAI)

A Co₂P nanorods catalyst promoted the reductive amination of 5-formyl-2-furancarboxylic acid to 5-(aminomethyl)furan-2-carboxylic acid (AMFCA) for biomass-based polyamide. The reaction in methanol-water mixture using Co₂P and NH₄OAc under 5 bar of H₂ provided AMFCA in 95% yield.