第 44 卷第 2 期 |  | Vol. 44 No. 2 | 2014 年 4 月 | Apr 2014 |
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所屬欄目:醫藥及中間體
2-(2-氯甲基苯基)乙基苯甲酸酯的合成工藝改進(jìn) |
張徑舟,宋宏銳*
(沈陽(yáng)藥科大學(xué) 制藥工程學(xué)院,遼寧 沈陽(yáng) 110016) |
摘 要:以苯乙醇為原料,通過(guò)成環(huán)、開(kāi)環(huán)反應,合成了2-(2-氯甲基苯基)乙基苯甲酸酯 (3) ,并改進(jìn)了合成工藝。改進(jìn)后的工藝條件為:水相鹽酸濃度6 mol/L,n(甲醛)∶n(苯甲酰氯)∶n(氯化鋅)∶n (1) =3.5∶1.03∶0.7∶1,成環(huán)、開(kāi)環(huán)反應時(shí)間分別為13 h和10 h。優(yōu)化條件下目標化合物收率達81.6%。目標化合物的結構經(jīng)1H NMR確證。改進(jìn)后的工藝降低了成本,簡(jiǎn)單可行,適合工業(yè)化生產(chǎn)。 |
關(guān)鍵詞:2-(2-氯甲基苯基)乙基苯甲酸酯;苯乙醇;工藝改進(jìn) |
中圖分類(lèi)號:R971 文獻標識碼:A 文章編號:1009-9212(2014)02-0038-03 |
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mproved Synthesis of 2-(2-Chloromethyl phenyl)ethyl Benzoate |
ZHANG Jing-zhou, SONG Hong-rui*
(School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China) |
Abstract:2-(2-Chloromethyl phenyl)ethyl benzoate(3) was prepared from phenethyl alcohol via annelation and ring opening reaction, and the process was improved. Reaction conditions were optimized as follows: aqueous hydrochloric acid concentration 6 mol/L, n(formalin):n(benzoyl chloride):n(zinc chloride):n(1) =3.5:1.03:0.7:1, reaction time of annelation and ring opening was 13 h and 10 h, respectively. The target compound was obtained in 81.6% yield under optimized conditions, and its structure was confirmed by 1H NMR. The improved process shows a lower cost and is suitable for commercial production. |
Key words:2-(2-Chloromethyl phenyl)ethyl benzoate; phenethyl alcohol; process improvement |
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作者簡(jiǎn)介:張徑舟(1990-),男,重慶人,碩士,主要從事藥物化學(xué)與有機化學(xué)研究(E-mail:jingzhouzhang318@gmail.com)。
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聯(lián) 系 人:宋宏銳,教授,博士生導師,主要從事藥物化學(xué)與有機化學(xué)研究(E-mail:hongruisong@163.com)。
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收稿日期:2014-03-14
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