CuSe2/CeO2 as a novel heterogeneous catalyst for reductive carbonylation of nitroarenes for generating urethanes
作者:Anh Vy Tran、Thanh Tung Nguyen、Hye Jin Lee、Se Won Bae、Jayeon Baek、Hoon Sik Kim、Yong Jin Kim
DOI:10.1016/j.apcata.2019.117245
日期:2019.10
as a single component heterogeneous catalyst, which is found to exhibit excellent catalytic activity for generating methyl-N-phenyl carbamate (MPC) in a highly selective fashion. The effects of various reaction parameters such as temperature, pressure, and reaction time have been investigated. A plausible reaction mechanism using this cheap heterogeneous catalyst is also presented, especially invoking
CuCl 2,SeO 2和十六烷基三甲基溴化铵(CTAB)在CO压力下在甲醇中的反应生成黑色固体,使用各种光谱分析将其识别为二硒化铜Cu II Se 2。的的CuSe的5%(重量)浸渍2到的CeO 2导致更加增强的催化活性归因于均匀和高度分散的粒子。在存在作为单组分非均相催化剂的CuSe 2 / CeO 2的情况下,对作为模型底物的硝基苯(NB)的还原羰基化进行了研究,发现该化合物显示出优异的催化活性,可生成甲基N-氨基甲酸苯酯(MPC)具有高度选择性。已经研究了各种反应参数(例如温度,压力和反应时间)的影响。还提出了使用这种廉价的非均相催化剂的合理的反应机理,特别是提到了CuSe 2(μ-CO)物种的重要性。