中孔分子筛Zr-Mo-MCM-41催化2-甲氧基萘傅-克酰基化反应  

Mesoporous Molecular Sieves Zr-Mo-MCM-41 as Catalysts for the Friedel-Crafts Acylation of 2-Methoxynaphthalene

作　　者：王志萍[1] 李露[1] 于世涛[1] 刘福胜[1] 宋湛谦 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2003年第6期479-483,共5页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金 (NO3 0 0 70 60 8);山东省优秀中青年科学家科研奖励基金资助项目 (NO .2 0 0 0 5 1)

摘　　要：采用水热合成法制得Mo MCM 41 ,以Zr(SO4) 2 为Zr源 ,制备中孔分子筛Zr Mo MCM 41。采用XRD、FT IR及Hammett指示剂法对其结构及酸强度进行表征。将其用于催化 2 甲氧基萘与乙酸酐的傅 克酰基化反应 ,考察了反应温度、催化剂用量、酰化剂用量、反应时间等因素对该反应转化率及选择性的影响 ,得到了较适宜的工艺条件 :2 甲氧基萘 3.95g ,Zr Mo MCM 41 1 .5g ,2 甲氧基萘与乙酸酐摩尔比为 1∶8,反应温度 1 2 0℃ ,反应时间 2 4h ,2 甲氧基萘的转化率可达 80 % ,催化剂对 1 乙酰基 2 甲氧基萘的选择性可达 95 %。此外还考察了催化剂的重复使用情况。A kind of mesoporous sieve Zr-Mo-MCM-41 was prepared.The structure and acid properties of the mesoporous sieve were investigated by XRD, FT-IR and Hammett indicator.The mesoporus sieve was used to catalyze the Friedel-Crafts acylation between 2-methoxynaphthalene and acetlc anhydride,and the effects of factors such as temperature, the amount of catalyst,amount of acylation agent and reaction time on reaction results were examined.The suitable conditions were as following:2-methoxynaphthalene 3.95 g,Zr-Mo-MCM-41 1.5 g,molar ratio of 2-methoxynaphthalene to acetic anhydride 1∶8,reaction temperature 120 ℃ and reaction time 24 h.Under above conditions,conversion of 2-methoxynaphthalene was 80 %, selectivity to 1-acyl-2-methoxynaphthalene was 95 %.

关 键 词：中孔分子筛 Zr-Mo-MCM-41 2-甲氧基萘 乙酸酐 傅-克酰基化反应 催化剂 

分 类 号：O643.36[理学—物理化学]