Highly selective catalytic hydroconversion of benzyloxybenzene to bicyclic cyclanes over bifunctional nickel catalysts
作者:Xiao Zhou、Xian-Yong Wei、Zhong-Qiu Liu、Jing-Hui Lv、Yue-Lun Wang、Zhan-Ku Li、Zhi-Min Zong
DOI:10.1016/j.catcom.2017.04.042
日期:2017.7
An active bifunctional nickel catalyst was prepared by decomposing Ni(CO)4 to highly dispersed metallic Ni onto Hβ zeolite and first applied in hydroconverting benzyloxybenzene (BOB), which was used as a lignin-related model compound. Ni/Hβ proved to be effective for converting BOB to bicyclic cyclanes (BCCs) via CalkO bond cleavage induced by H+ addition, benzylium addition to 2- and 4-positions in
通过将Ni(CO)4分解为高度分散的金属Ni到Hβ沸石上,制备活性双功能镍催化剂,然后将其首先用于加氢转化苄氧基苯(BOB),用作木质素相关模型化合物。的Ni /Hβ被证明是有效的BOB通过C转化为二环环烷烃(嗜铬细胞)烷由H诱导的O键裂解+苯酚另外,benzylium除了2-和4-位,氢化苯环,脱水,和H -抽象。与一步转化相比,通过在加压N 2下进行预处理,催化转化的BOB进行催化加氢转化后,总BCC选择性(TBCCS)显着增加。