Birch-Type Reduction of Arenes in 2-Propanol Catalyzed by Zero-Valent Iron and Platinum on Carbon
Birch-Type Reduction of Arenes in 2-Propanol Catalyzed by Zero-Valent Iron and Platinum on Carbon
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DOI：
10.1021/acsomega.9b01130
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发表时间：
2019-07
期刊：
影响因子：
4.1
通讯作者：
Y. Sawama;Kazuho Ban;Kazuhiro Akutsu-Suyama;H. Nakata;Misato Mori;Tsuyoshi Yamada;Takahiro Kawajiri-Takahiro-Kawajir
中科院分区：
文献类型：
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作者：
Y. Sawama;Kazuho Ban;Kazuhiro Akutsu-Suyama;H. Nakata;Misato Mori;Tsuyoshi Yamada;Takahiro Kawajiri-Takahiro-Kawajir
在碳载铂和金属铁存在下，在异丙醇/水中加热可以有效地实现芳烃的催化还原。异丙醇作为氢源，消除了对易燃(因此危险和难以处理)氢气的需要，而金属铁则是促进还原的基本助催化剂。通过X射线吸收近边结构分析确定了反应混合物中铂和铁的化学状态，提出了一种合理的反应机理，即催化还原包括铂和铁介导单电子转移和异丙醇的脱氢。
Catalytic arene reduction was effectively realized by heating in 2-propanol/water in the presence of Pt on carbon (Pt/C) and metallic Fe. 2-Propanol acted as a hydrogen source, obviating the need for flammable (and hence, dangerous and hard-to-handle) hydrogen gas, while metallic Fe acted as an essential co-catalyst to promote reduction. The chemical states of Pt and Fe in the reaction mixture were determined by X-ray absorption near-edge structure analysis, and the obtained results were used to suggest a plausible reaction mechanism, implying that catalytic reduction involved Pt- and Fe-mediated single-electron transfer and the dehydrogenation of 2-propanol.