Hydroxyl Assisted Rhodium Catalyst Supported on Goethite Nanoflower for Chemoselective Catalytic Transfer Hydrogenation of Fully Converted Nitrostyrenes
作者:Zenan Hu、Yongjian Ai、Lei Liu、Junjie Zhou、Gang Zhang、Hongqi Liu、Xiangyu Liu、Zhibo Liu、Jianshe Hu、Hong‐bin Sun、Qionglin Liang
DOI:10.1002/adsc.201801611
日期:2019.7.2
reaction duration. The catalytic selectivity for the reduction of the nitro group towards vinyl group was investigated by the control experiments and FT‐IR analysis. We have found that the abundant hydroxyl groups in the α‐FeOOH may contribute to the improvement of catalytic activity and selectivity. Furthermore, the catalyst exhibits excellent stability and keeps its catalytic performance even after
化学选择性的控制对于还原带有一个或多个不饱和基团的硝基芳烃是一个特殊的挑战。在这里,我们报道了一种花状的Rh /α-FeOOH催化剂,用于将硝基苯乙烯化学选择性加氢为乙烯基苯胺,使其完全转化,这对新型功能化的氨基苯乙烯很有好处,因为多取代的氨基苯乙烯通常在市场上无法买到。该催化剂不仅显示出对乙烯基苯胺的期望的选择性,而且在宽的反应持续时间内对各种其他可还原基团表现出惰性。通过控制实验和FT-IR分析研究了硝基还原为乙烯基的催化选择性。我们发现,α-FeOOH中丰富的羟基可能有助于提高催化活性和选择性。