| 第 34 卷第 3 期 |  | Vol. 34 No. 3 | | 2004 年 6 月 | Jun 2004 |
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所屬欄目：其它
氨基磺酸催化合成尼泊金丁酯 |
| 羅一鳴; 曾光堯; 陳建(中南大學(xué)化學(xué)化工學(xué)院; 湖南長(cháng)沙) |
| 摘 要：采用氨基磺酸作催化劑,以對羥基苯甲酸和正(異)丁醇為原料合成尼泊金(異)丁酯,優(yōu)惠工藝條件為:0.25mol丁醇,0.05mol對羥基苯甲酸,催化劑氨基磺酸0.5g,過(guò)量的醇為帶水劑,回流溫度下反應3h,丁酯和異丁酯的收率分別可達75.6%和76.3%。產(chǎn)品以紅外圖譜、熔點(diǎn)、元素分析進(jìn)行了確證。 |
| 關(guān)鍵詞：尼泊金丁酯; 氨基磺酸; 催化劑; 酯化 |
| 中圖分類(lèi)號：TQ225.24 文獻標識碼：A 文章編號：1009-9212(2004)03-0022-03 |
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| Synthesis of Butyl p-hydroxybenzoate with Aminosulfonic acid as Catalyst |
| LUO Yi-ming; ZENG Guang-yao; CHEN Jian （School of Chemistry & Chemical Engineering; Central South University; Changsha; 410083; China） |
| Abstract：Butyl (isobutyl) p-hydroxybenzoate were synthesized with reaction of p-hydroxybenzoic acid and butanol (isobutano), by aminosulfonic acid as catalyst. The optimum conditions are as followings: the ratio of butanol, p-hydroxybenzoic acid, aminosulfonic acid is 0.25 mol:0.05 mol:0.5 g, reaction for 3 h. The yield is 75.6%(76.3%). The products were characterized by IR, m.p., element. |
| Key words：butyl Nipogin ester; aminosulfonic acid; esterification; catalyst |
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收稿日期：2003-09-15
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