中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (07): 860-862.DOI: 10.3724/SP.J.1095.2010.90633

• 研究简报 • 上一篇    下一篇

酸性功能化离子液体催化合成叶青素

易封萍1*,孙海洋1,2   

  1. (1.上海应用技术学院香料香精技术与工程学院 上海 200235;2.上海海洋大学食品学院 上海)
  • 收稿日期:2009-09-23 修回日期:2009-11-02 出版日期:2010-07-10 发布日期:2010-07-10
  • 通讯作者: 易封萍，女，博士，教授; E-mail:yifengping@sit.edu.cn; 研究方向：天然香料及合成香料的提取分离和绿色化学合成
  • 基金资助:
    上海市教委重点项目（06ZZ82）

Synthesis of Cyanophyll with Sulfonic Acidic Ionic Liquid as Catalyst

YI Feng-Ping1*, SUN  Hai-Yang1,2   

  1. (1.School of Perfume and Aroma Technology,Shanghai Institute of Technology,Shanghai 200235;
    2.College of Food Science & Technology,Shanghai Ocean University,Shanghai)
  • Received:2009-09-23 Revised:2009-11-02 Published:2010-07-10 Online:2010-07-10

PDF

1529

被引次数

2

摘要：

以含磺酸基离子液体1-(4-磺酸基)丁基-3-甲基咪唑四氟硼酸盐([4-sulfbmim][BF4])为酸性催化剂，由乙缩醛和苯甲醇合成了叶青素。 采用正交实验方法考察了合成条件的影响，固定反应温度为20 ℃条件下，确定优化合成条件为：n(苯甲醇)∶n(乙缩醛)=1∶8，反应时间60 min，催化剂用量为每摩尔苯甲醇4 g，产率为92.2%。 与H2SO4催化剂相比[4-sulfbmim][BF4]的催化活性相对较弱，但综合效果优于H2SO4。 [4-sulfbmim][BF4]循环使用6次，催化活性基本不变。

关键词: 酸性功能化离子液体, 叶青素, 乙醛乙基苄基缩醛, 催化剂

Abstract:

Cyanophyll was prepared from the reaction of acetal with benzyl alcohol in the presence of sulfonic acidic ionic liquid 1-(4-sulfonic group)-butyl-3-methylimidazole tetrafluoroborate([4-sulfbmim][BF4]) as acidic catalyst. At reaction temperature 20 ℃, the reaction conditions were optimized by orthogonal experiments as follows, molar ratio of benzyl alcohol and acetal is 1 to 8, reaction time 60 min, amount of catalyst 4 g based on benzyl alcohol. The yield of cyanophyll could be 92.2%. The acidic ionic liquid [4-sulfbmim][BF4] had better catalytic effect compared with H2SO4 even if it is a little weaker in activity, and it could be reused for 6 times without losing of the catalytic activity.

Key words: acidic functional ionic liquid, cyanophyll, acetaldehyde ethyl benzyl acetal, catalyst

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