赖氨酸修饰氧化石墨烯固体配体在C—N偶联中的应用研究  

Lysine-Graphene Oxide as a Heterogeneous Ligand Applied in CuI-catalyzed C—N Coupling Reaction

作　　者：杨琴[1] 周娟[2] 尹梦云[1] 郎文成 周丽梅[1] 

机构地区：[1]化学合成与污染控制四川省重点实验室西华师范大学化学化工学院,四川南充637002 [2]中国化工集团公司,北京海淀100080

出　　处：《分子催化》2016年第2期99-104,共6页Journal of Molecular Catalysis(China)

基　　金：国家自然科学基金(21303139)~~

摘　　要：通过L-赖氨酸修饰氧化石墨烯(GO)制备了一种石墨烯杂化材料(Lys-GO).该材料作为一种固体配体用于铜催化的C—N偶联反应.考察了碱和温度对反应的影响.在100℃氮气气氛中,NaOH存在下,该固体配体辅助碘化亚铜催化一系列芳基化合物和氮杂化合物偶联,达到中等及以上收率.另外,该催化体系解决了均相催化剂和产品的分离困难和难循环使用的问题,降低了催化剂成本,减少了环境污染.A graphene hydrid material（ Lys-GO） was prepared by L-lysine grafted on the graphene oxide. The LysGO materials can be used as heterogeneous ligands for Cu I catalyzed C—N coupling reactions. The effects of base and temperature on the reaction were investigated. The desired products were obtained with good yields at 100 ℃under N_2 atmosphere with KOH as base. Additionally,this catalyst system resolved the problem which homogeneous catalysts are difficult to be separated from the reaction product and recycled,which reduced the cost of catalyst and the release of environment pollutions.

关 键 词：石墨烯 固体配体 C—N偶联 

分 类 号：O643.32[理学—物理化学]