金先生、野崎先生(東京大学)らとの共同研究の成果がAngew. Chem. Int. Ed.誌 (Wiley-VCH)にAcceptされました。Our collaboration with Dr. Jin and Prof. Nozaki (The University of Tokyo) was accepted in Angew. Chem. Int. Ed.誌 (Wiley-VCH).

金先生、野崎先生(東京大学)らとの共同研究の成果がAngew. Chem. Int. Ed.誌 (Wiley-VCH)にAcceptされました。Our collaboration with Dr. Jin and Prof. Nozaki (The University of Tokyo) was accepted in Angew. Chem. Int. Ed.誌 (Wiley-VCH).

 

「Hydrogen-Induced Formation of Surface Acid Sites on Pt/Al(PO₃)₃ Enables Remarkably Efficient Hydrogenolysis of C−O Bonds in Alcohols and Ethers」

Kento Oshida; Kang Yuan; Yukari Yamazaki; Rio Tsukimura; Hidenori Nishio; Katsutoshi Nomoto; Hiroki Miura; Tetsuya Shishido; Xiongjie Jin; Kyoko Nozaki

Angewante Chemie International Edition, 2024，e202403092. DOI: 10.1002/anie.202403092

 

The hydrogenolysis of oxygenates such as alcohols and ethers is central to the biomass valorization and also a valuable transformation in organic synthesis. However, a mild and efficient catalyst system for the hydrogenolysis of a large variety of alcohols and ethers with various functional groups is still underdeveloped. Here, we report an aluminum metaphosphate-supported Pt nanoparticles (Pt/Al(PO₃)₃) for the hydrogenolysis of a wide variety of primary, secondary, and tertiary alkyl and benzylic alcohols, and dialkyl, aryl alkyl, and diaryl ethers, including biomass-derived furanic compounds, under mild conditions (0.1–1 atm of H₂, as low as 70 °C). Mechanistic studies suggested that H₂ induces formation of the surface Brønsted acid sites via its cleavage by supported Pt nanoparticles. Accordingly, the high efficiency and the wide applicability of the catalyst system are attributed to the activation and cleavage of C−O bonds by the hydrogen-induced Brønsted acid sites with the assistance of Lewis acidic Al sites on the catalyst surface. The high efficiency of the catalyst implies its potential application in energy-efficient biomass valorization or fine chemical synthesis.