【摘要】 通过水热法及沉淀法,合成了纳微尺度铜金属有机框架催化剂。通过FT-IR、TG及TEM等技术手段对其性能和结构进行了表征。系统考察了催化剂、溶剂种类及用量、反应时间等因素对异丁香酚氧化制备香草醛的影响。结果表明,用均苯三甲酸根（BTC）作配体时制备的催化剂Cu-BTC性能较佳。以Cu-BTC为催化剂、30%（质量分数）H₂O₂为氧化剂、乙腈为介质,当n（异丁香酚）∶n（H2O2）=1∶2.4时,50℃,反应8 h,异丁香酚转化率为94.4%,香草醛产率达到81.8%。纳微尺度（粒径30³00 nm）Cu-BTC催化剂体现了良好的重复使用性能,连续反应5次,异丁香酚转化率保持在90%左右。更多还原

【Abstract】 Nano/microscale copper metal-organic framework( MOF) catalysts were synthesized via hydrothermal method or precipitation and characterized by FT-IR,TG and TEM,respectively. The effects of these catalysts,solvent,and reaction time on the oxidation of isoeugenol to vanillin were investigated. Cu-BTC containing BTC( 1,3,5-benzenetricarboxylate) ligand is found to exhibit the best catalytic performance. When employing Cu-BTC as catalyst,30%( mass fraction) H2O2 as oxidant,94. 4% conversion of isoeugenol and81. 8% yield of vanillin are achieved with n( isoeugenol) ∶ n( H2O2) = 1∶ 2. 4 after 8 h reaction at 50 ℃ in acetonitrile. Additionally,nano/microscale Cu-BTC( diameter ca. 30 ~ 300 nm) exhibits good reusability and~ 90% conversion of isoeugenol can be maintained in 5 recycles.更多还原