中孔分子筛催化2-甲氧基萘的酰基化反应的研究  

Mesoporous Molecular Sieves as Catalysts for the Acylation of 2-Methoxynaphthalene

作　　者：李露[1] 于世涛[1] 刘福胜[1] 解从霞[1] 高洁[1] 

机构地区：[1]青岛科技大学化工与制药工程学院,山东青岛266042

出　　处：《精细化工》2003年第1期11-13,21,共4页Fine Chemicals

基　　金：国家自然科学基金资助项目 (NO .30 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：制备了MCM - 41、SO2 -4 MCM 41和BO3-3 MCM 413种中孔分子筛催化剂 ,并采用XRD、FT -IR及Hammett指示剂法对其结构及酸强度进行了表征。将其用于催化 2 甲氧基萘的傅 -克酰基化反应 ,结果证明 ,BO3-3 MCM 41的催化效果最佳。在w(BO3-3 MCM 41)∶w(2 甲氧基萘 ) =1 0∶1 6,n(2 甲氧基萘 )∶n(乙酰氯 ) =1∶8,反应温度 5 6～ 5 8℃ ,反应时间 2 4h的较佳工艺条件下 ,2 甲氧基萘转化率≥ 78 3 % ,目标产物选择性≥ 99 7%。Mesoporous molecular sieves MCM-41,SO 2-_4-MCM-41 and BO 3-_3-MCM-41 were prepared.Structure and acid strength of the molecular sieves were characterized by XRD,FT-IR and Hammett indicator.The sieves were used as catalysts for Friedel-Crafts acylation of 2-methoxynaphalene.The catalytic performance of BO 3-_3-MCM-41 was the best. The optimum reaction conditions were n(2-methoxynaphalene)∶n(acetyl chloride)=1∶8,w(BO 3-_3-MCM-41)∶w(2-methoxynaphalene)=1.0∶1.6,reaction temperature 56～58 ℃ and reaction time 24 h.Conversion of 2-methoxynaphalene was ≥78.3% and selectivity for the product was ≥99.7%.

关 键 词：中孔分子筛 催化 2-甲氧基萘 研究 傅-克酰基化反应 

分 类 号：TQ241.52[化学工程—有机化工] O643.36[理学—物理化学]