在线阅读 --自然科学版 2000年2期《稀土固体超强酸SO42-/TiO2/La3+催化合成苯乙酸丁酯》
稀土固体超强酸SO42-/TiO2/La3+催化合成苯乙酸丁酯--[在线阅读]
赵汝琪
河北师范大学化学系 河北 石家庄 050016
起止页码: 217--218页
DOI:
摘要
研究了以固体超强酸SO42-/TiO2/La3+为催化剂,苯乙酸和正丁醇为原料合成苯乙酸丁酯,并考察了影响反应的因素.结果表明,醇酸比为2.0∶1,催化剂用量为2%(苯乙酸为0.2mol的情况下),带水剂甲苯为15mL,反应时间为3.0h是最适宜的反应条件,酯化率达98.5

The Catalytic Synthesis of Butyl Phenylaceate by SO2-4/TiO2/La3+ Rare-earth Solid Superacid
ZHAO Ru qi
Department of Chemistry, Hebei Normal University, Shijiazhuang 050016, China
Abstract:
The synthesis of butyl phenylaceate with n-butanol and phenylacetic acid as reactants and rare-earth solid superacid SO2-4/TiO2/La3+ as catalyst had been studied. The influent factors of reaction were investigated. The results showed that the appropriate conditions should be : weight of catalyst was 2 % ( weight of phenylacetic acid if 0. 2 mol) , the molar ratio of n-butanol to phenylacetic acid was 2. 0 ∶1, the reaction time was 3. 0 h, the taking water reagent ( Toluene) was 15 mL. The yield of butyl phenylaceate was about 98. 5 % .

收稿日期: 1999-9-1
基金项目: 河北省自然科学基金资助项目(295108)

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