| 长链尼泊金酯类防腐剂的合成研究 |
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| 引用本文： | 侯艳冰,晏日安,黄才欢,段翰英.长链尼泊金酯类防腐剂的合成研究[J].食品科技,2011(5):238-241. |
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| 作者姓名： | 侯艳冰 晏日安 黄才欢 段翰英 |
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| 作者单位： | 暨南大学食品科学与工程系; |
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| 基金项目： | 广东高校科技成果转化项目(cgzhzd0805) |
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| 摘 要： | 对羟基苯甲酸分别与正庚醇、正辛醇、正十一醇、正十二醇在对甲苯磺酸催化下,以苯为溶剂,直接酯化合成尼泊金庚酯、辛酯、十一酯、十二酯,用正己烷为溶剂重结晶得到最终产品。其最佳的反应条件是:醇与对羟基苯甲酸摩尔比3:1,反应时间为4h,反应温度为130~140℃,对甲苯磺酸与对羟基苯甲酸的摩尔比0.07:1;产率分别为:83.1%、85.4%、90.3%、94.6%。
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| 关 键 词： | 长链尼泊金酯 合成 防腐剂 |
Synthesis of long-chian esters of p-hydroxybenzoic acid |
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| HOU Yan-bing,YAN Ri-an,HUANG Cai-huan,DUAN Han-ying.Synthesis of long-chian esters of p-hydroxybenzoic acid[J].Food Science and Technology,2011(5):238-241. |
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| Authors: | HOU Yan-bing YAN Ri-an HUANG Cai-huan DUAN Han-ying |
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| Affiliation: | HOU Yan-bing,YAN Ri-an*,HUANG Cai-huan,DUAN Han-ying (Department of Food Science and Enginering,Jinan University,Guangzhou 510632) |
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| Abstract: | The long-chian esters of p-hydroxybenzoic acid, such as heptyl ester of p-hydroxybenzoic acid, octyl ester of p-hydroxybenzoic acid, undecyl ester of p-hydroxybenzoic acid and lauryl ester of p-hydroxybenzoic acid, were synthesized by a direct esterification from 1-heptyl alcohol (1-octyl alcohol, 1-undecyl alcohol, 1-laurl alcohol) and p-hydroxybenzoic acid as catalyst in benzene. And the final products were got by a recrystallization using hexane. The yields were 83.1%, 85.4%, 90.3% and 94.6%. The optimum... |
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| Keywords: | long-chian esters of p-hydroxybenzoic acid synthesis preservative |
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