A Biomass-Derived Non-Noble Cobalt Catalyst for Selective Hydrodehalogenation of Alkyl and (Hetero)Aryl Halides
作者:Basudev Sahoo、Annette-Enrica Surkus、Marga-Martina Pohl、Jörg Radnik、Matthias Schneider、Stephan Bachmann、Michelangelo Scalone、Kathrin Junge、Matthias Beller
DOI:10.1002/anie.201702478
日期:2017.9.4
straightforward approach for detoxifications of harmful anthropogenic organohalide-based pollutants, as well as removal of halide protecting groups used in multistep syntheses. A novel sustainable catalytic material was prepared from biowaste (chitosan) in combination with an earth-abundant cobalt salt. The heterogeneous catalyst was fully characterized by transmission electron microscope, X-ray diffraction,
加氢脱卤是一种直接的方法,可以对有害的人为有机卤化物进行排毒,并去除多步合成中使用的卤化物保护基。一种新型的可持续催化材料是由生物废料(壳聚糖)与富含地球的钴盐结合制成的。通过透射电子显微镜,X射线衍射和X射线光电子能谱测量对多相催化剂进行了充分表征,并将其成功应用于烷基卤和(杂)芳基卤化物的加氢脱卤,适用范围广(> 40个实例),并且具有出色的化学选择性氢作为还原剂。这种方法的普遍用途通过不可降解农药和阻燃剂的成功排毒得到证明。而且,