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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:

2011年03期

Page:

74-78

Research Field:

化学

Publishing date:

Info

Title:

Synthesis of Ethyl Vanillin 1,2-Propylene Glycol Acetal Catalyzed by SO₄^2-/ZrO₂ Solid Superacid

Author(s):

Chen Jiexiao¹; ²; Luo Jinyue¹; ²

1.College of Chemical Engineering,Nanjing Forestry University,Nanjing 210037,China

Keywords:

ethyl vanillin 1; 2 -propylene glycol acetal; ethyl vanillin; propylene glycol; SO2 － 4 /ZrO2 solid superacid

PACS:

TQ655

DOI:

-

Abstract:

The synthesis of ethyl vanillin 1，2 -propylene glycol acetal was studied． Factors influencing the yield，such as different water-entraining agents，catalyst amounts，reaction time，molar ratio of materials et al，were discussed and the better reaction conditions were determined． The optimum conditions are as follows: ethyl vanillin is 0. 05 mol，n( ethyl vanillin) ∶ n( 1，2-propylene glycol) = 1∶ 1. 5; the water-entraining agent is toluene ( 20 mL) ; the amount of catalyst is 1. 2% of the weight of ethyl vanillin; the reaction time is 9. 0 h． Under these conditions，the yield of ethyl vanillin propylene glycol acetal is 96. 6%． The structure of was identified by means of IR，1H NMR，13C NMR and GC-MS．

References:

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［3］ Beresnevich L B，Moiseichuk K L． Synthesis of 1，3 -dioxolanes from natural carbonyl compounds［J］． Vestsi Natsyyanal’nai Akademii Navuk Belarusi，Seryya Khimichnykh Navuk，2009( 4) : 73-76．
［4］ 任立国，高文艺． SO2 － 4 － TiO2 固体超强酸催化合成环缩酮［J］． 精细化工， 2002， 19( 5) : 276-277．
［5］ Justus J，Vinu A，Balasubramanian V V，et al． Highly efficient and chemo selective catalyst system for the synthesis of blossom orange fragrance and flavoring compounds ［J］． Catalysis Communications，2008，9 ( 7) : 1 671-1 675．
［6］ 刘飞，罗金岳． 固体超强酸催化合成香草醛1，2 -丙二醇缩醛［J］． 精细化工， 2009， 27( 2) : 155-159．
［7］ 罗金岳，倪传根，王志国，等． 固体超强酸SO2 － 4 /ZrO2 催化α-蒎烯异构反应［J］． 南京林业大学学报: 自然科学版， 2004， 28( 3) : 51-54．

Memo

Memo:

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Common functions

Last Update: 2011-09-15