Résumé In water, Al powder becomes a powerful reducing agent, transforming in cyclohexyl either one or both benzene rings of aromatic compounds such as biphenyl, fluorene and 9,10-dihydroanthracene under mild reaction conditions in the presence of noble metal catalysts, such as Pd/C, Rh/C, Pt/C, or Ru/C. The reaction is carried out in a sealed tube, without the use of any organic solvent, at low temperature. Partial aromatic ring reduction was observed when using Pd/C, the reaction conditions being 24 h and 60 °C. The complete reduction process of both aromatic rings required 12 h and 80 °C with Al powder in the presence of Pt/C. Supplementary Materials: Supplementary material for this article is supplied as a separate file: mmc1.pdf
简历
在
水中,铝粉成为一种强大的还原剂,能够在
贵金属催化剂(如Pd/C、Rh/C、Pt/C或Ru/C)的存在下,在温和反应条件下,转换芳香化合物(如
联苯、
氟烯和
9,10-二氢蒽)的一根或两根苯环。反应在密封管中进行,无需任何有机溶剂,并且在低温下进行。当使用Pd/C时,观察到部分芳香环的还原,反应条件为24小时,温度为60℃。在Pt/C存在下,铝粉的两个芳香环完全还原的过程需要12小时和80℃。
补充材料:
本文章的补充材料作为单独文件提供:mmc1.pdf