羽毛角蛋白稳定的钯纳米颗粒催化Suzuki偶联反应(英文)  

Nanoparticulate palladium catalyst stabilized by supported on feather keratin for Suzuki coupling reaction

作　　者：马恒昌[1] 包志康[1] 韩国斌[1] 杨宁宁[1] 许玉菲 杨增明[1] 曹伟[1] 马源[1] 

机构地区：[1]西北师范大学化学化工学院甘肃省高分子化学与物理重点研究室教育部生态环境相关高分子重点实验室,甘肃兰州730070

出　　处：《催化学报》2013年第3期578-584,共7页

基　　金：supported by the National Natural Science Foundation of China(21202133);Specialized Research Fund for the Doctoral Program of Higher Education(20050736001);Young Teacher Research Foundation of Northwest Normal University(NWNU-LKQN-08-8,NWNU-kjcxgc-03-73)~~

摘　　要：采在温和条件下羽毛角蛋白负载的Pd纳米颗粒可高效催化水中溴代芳烃与苯硼酸的偶联反应,且具有官能团的广泛适用性,生成的联苯类化合物可在反应液中沉淀出来,具有很好的产率和纯度. 催化剂通过简单过滤可重复使用7次.Palladium nanoparticles supported in a feather keratin matrix were efficient catalyst for the coupling reactions of aryl bromides with arylboronic acid in aqueous medium under mild reaction conditions.The biopolymer-based catalyst demonstrated excellent activity for substrates with a wide range of functional groups.The product biaryls were precipitated from the reaction mixture with good to excellent yields and purities.The catalyst was recovered from the reaction solution easily by simple filtration,and can be reused at least seven times.

关 键 词：SUZUKI偶联反应 纳米颗粒 羽毛角蛋白 疏水效应 水相 

分 类 号：O643.32[理学—物理化学]