title: Design and preparation of a simple and effective palladium catalyst and the hydrogenation performance toward dibenzylbiotinmethylester.
abstract: A series of well-dispersed carbon supported Pd catalysts were prepared by a simple and effective method under mild conditions. The functionalized carbon supported Pd catalyst (Pd/AC-H) demonstrated a enhanced performance to original carbon supported Pd catalyst (Pd/AC) in the probe reaction hydrogenation of 3,4-(1',3'-Dibenzyl-2'-oxoimidazolido)-2-(4-carboxybutylidene)thiophane to dibenzylbiotinmethylester. The results of various characterization techniques revealed that the improvement of Pd dispersion on Pd/AC-H catalyst surface could be associated to the presence of abundant oxygen-containing groups available for anchorage. Furthermore, the role of the surface groups of carbon supports was indispensable since they could provide an efficient pathway for the reaction. The oxygen-containing groups located at the Pd-supports interface were able to adjust the strength of reactant adsorption/activation on the Pd active sites, which was responsible for the high yield of dibenzylbiotinmethylester.
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, China. Electronic address: annh09@mails.jlu.edu.cn.
authors.forename: Nihong
authors.initials: N
authors.lastname: An
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, China.
authors.forename: Yunsheng
authors.initials: Y
authors.lastname: Dai
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, China.
authors.forename: Chun
authors.initials: C
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry, Jilin University, Changchun 130021, China. Electronic address: yuanxl@jlu.edu.cn.
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Yuan
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, China.
authors.forename: Jilong
authors.initials: J
authors.lastname: Dong
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, China.
authors.forename: Yafeng
authors.initials: Y
authors.lastname: Shen
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
keywords: Functionalization; Hydrogenation; Metal-support interaction; Palladium catalyst