Catalytic Bond-Cleavage Reactions toward Utilization of Renewable Resources

2023 Fiscal Year Final Research Report

• Project/Area Number: 18H05259
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Review Section: Broad Section E
• Research Institution: The University of Tokyo
• Principal Investigator: NOZAKI Kyoko 東京大学, 大学院工学系研究科(工学部), 教授 (60222197)
• Project Period (FY): 2018-06-11 – 2023-03-31
• Keywords: 再生可能資源 / 触媒 / 還元 / 結合開裂 / 加水素分解

Outline of Final Research Achievements

We extended the metal-ligand cooperation of homogeneous catalysts to heterogeneous catalysts and successfully applied them to the selective deoxygenation of phenols and aliphatic alcohols. Effective deoxygenation of fatty acids and their esters was also achieved. In the hydrolysis of lignin model compounds, we found conditions that selectively cleave carbon-carbon and carbon-oxygen bonds. The obtained knowledge was developed into the conversion of modified lignin into low-molecular-weight aromatic compounds and the conversion of lipids into hydrocarbons, providing a path to the effective use of biomass.

Free Research Field

触媒化学

Academic Significance and Societal Importance of the Research Achievements

学術的には、金属―配位子協働作用という触媒設計概念を不均一系触媒開発に拡大した。すなわち、主として酸・塩基、レドックスの議論に限られていた従来の担体効果について、さらに踏み込んだ有機化学的な解釈を加え、両分野をより近づけた。一方、本研究で開発された結合開裂反応は、本研究の目的の未利用バイオマスの有効利用だけでなく、廃プラスチックの分解にも応用可能であり、持続可能社会実現に大きく資するものである。