Synthesis of Allyl Ethers from Allyl Chloride with Alcohols Catalyzed by Copper-Zirconium Oxide Supported PdO  

作　　者：Yuan Enxian Sang Ruishi Jian Panming 

机构地区：[1]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002

出　　处：《China Petroleum Processing & Petrochemical Technology》2021年第4期65-74,共10页中国炼油与石油化工（英文版）

基　　金：The authors are grateful to the financial support from the Jiangsu Province Natural Science Foundation of China(BK20180935);the National Natural Science Foundation of China(22108236);the Yangzhou City Lüyangjinfeng Project of China.

摘　　要：A series of copper-zirconium oxides with the Cu/Zr ratio ranging from 2/8 to 9/1 were synthesized by the co-precipitation method.The PdO/CumZrn catalysts were prepared and applied to synthesis of allyl ethers via the etherification reactions of allyl chloride with alcohols.The characterization results demonstrated that the presence of ZrO_(2) phase not only can facilitate the high dispersion of Pd^(2+),but can also favor the formation of Cu^(+) via the interaction between CuO and ZrO_(2).The catalytic performance initially increases and then falls off with the progressive increase in the Cu/Zr ratio.The superior performance with a conversion of 53.2%along with a selectivity of 60.3%was achieved over the resulting PdO/Cu7Zr3 catalyst with the highest surface molar proportion of Cu^(+).Good catalytic activity was obtained,because the Cu^(+)-Oα-pairs could enhance the dissociative activation of the-O-H bond in alcohols compared with Cu^(2+)-O2-pairs,subsequently promoting the etherification reactions.

关 键 词：allyl ethers copper-zirconium oxides PDO etherification reactions 

分 类 号：TQ223.24[化学工程—有机化工] TQ426