| 铬取代磷钒杂多酸催化合成苹果酯 |
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| 引用本文： | 刘文萍,何则强,熊利芝,吴显明,陈上. 铬取代磷钒杂多酸催化合成苹果酯[J]. 吉首大学学报(自然科学版), 2007, 28(1): 110-113 |
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| 作者姓名： | 刘文萍 何则强 熊利芝 吴显明 陈上 |
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| 作者单位： | 吉首大学化学化工学院,湖南,吉首,416000;吉首大学化学化工学院,湖南,吉首,416000;中南大学化学化工学院,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金 , 中国博士后科学基金 , 湖南省教育厅青年基金 |
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| 摘 要： | 以乙酰乙酸乙酯和乙二醇为原料，环己烷为带水剂，用自制的Bi-capped Keggin型铬钒磷杂多酸为催化剂，合成了苹果酯.探讨了催化剂用量、原料配比、带水剂用量和反应时间对产品收率的影响，并用多种手段对产品做了检测分析.得到合成该酯的最佳工艺条件为:n(乙酰乙酸乙酯)/n(乙二醇)=1∶2，催化剂用量为反应物料总质量的1.0%，环己烷做带水剂，在反应温度80～104 ℃回流反应60 min，酯收率可达98.54%.在此条件下，酯收率可达98.54%.
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| 关 键 词： | 苹果酯 Bi-capped Keggin型杂多酸 催化剂 |
| 文章编号： | 1007-2985(2007)01-0110-04 |
| 修稿时间： | 2006-12-11 |
Catalytic Synthesis of Fructone with Cr-Doped P-V Heteropolyacid |
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| LIU Wen-ping,HE Ze-qiang,XIONG Li-zhi,Wu Xian-ming,CHEN Shang. Catalytic Synthesis of Fructone with Cr-Doped P-V Heteropolyacid[J]. Journal of Jishou University(Natural Science Edition), 2007, 28(1): 110-113 |
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| Authors: | LIU Wen-ping HE Ze-qiang XIONG Li-zhi Wu Xian-ming CHEN Shang |
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| Affiliation: | (1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China；2.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | Cr-doped bi-capped Keggin P-V heteropolyacid(H13PV12Cr2O42·21H2O) was synthesized and used as catalyst for the synthesis of fructone.The effects of reaction conditions were investigated.The product was characterized and analyzed by FT-IR.The most suitable conditions for the reaction are as follows: n(ethyl acetoacetate)/n (glycol) is 1/2,mass ratio of catalyst to reactant 1.0%,reaction temperature 80～104 ℃ and reaction time 60 min.Under these conditions,yield of fructone could reach 98.54%,suggesting that H13PV12Cr2O42·21H2O is a good catalyst for the catalytic synthesis of fructone. |
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| Keywords: | fructone Bi-capped Keggin type heteropolyacid catalyst |
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