Platinum-Catalyzed Facile Arene Hydrogenation: Dramatic Effect of Activated Carbon and Vinylsiloxane Derivatives on the Catalyst Efficiency
Platinum-Catalyzed Facile Arene Hydrogenation: Dramatic Effect of Activated Carbon and Vinylsiloxane Derivatives on the Catalyst Efficiency
复制标题
铂催化的简易芳烃加氢：活性炭和乙烯基硅氧烷衍生物对催化剂效率的显着影响
DOI：
10.1002/ajoc.202200666
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发表时间：
2023
影响因子：
2.7
通讯作者：
Masamichi Yoshimura
中科院分区：
文献类型：
--
作者：
Yukihiro Motoyama;Kenta Ohnishi;Hayato Shibuya;Prerna Joshi;Masamichi Yoshimura
Karstedt‘s催化剂或铂(Dba)2[dba：二亚苄基丙酮]与活性碳的结合被发现是一种有效的芳烃加氢催化剂体系。该反应在常温常压氢气压力下进行，以良好到高的产率得到相应的碳环和杂环化合物，而不会污染金属物种。结果表明，在反应混合物中加入活性碳不仅可以维持催化活性，而且可以有效地捕获反应后的铂物种。乙烯基硅氧烷衍生物的加入也观察到了类似的维持效应。
Combination of Karstedt's catalyst or Pt(dba)2[dba: dibenzylideneacetone] with activated carbon was found to be an efficient catalyst system for the arene hydrogenation of a variety of functionalized aromatic compounds. The reaction proceeds at ambient temperature under atmospheric hydrogen pressure to afford the corresponding carbo‐ and heterocyclic compounds in good to high yields without contamination of the metallic species. The addition of activated carbon in the reaction mixture was proved to be crucial for not only sustaining the catalytic activity but also trapping the platinum species effectively after the reaction. Similar sustaining effect was observed by the addition of vinyl siloxane derivatives.