第 49 卷第 2 期 |  | Vol. 49 No. 2 | 2019 年 4 月 | Apr 2019 |
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所屬欄目:醫藥及中間體
2-乙硫基苯并噻唑的合成研究 |
葛雅莉,盤(pán)茂森,黃永賢
(廣東石油化工學(xué)院,廣東 茂名 525000) |
摘 要:提出了以2-巰基苯并噻唑為原料,堿的醇溶液為反應介質(zhì),與溴乙烷反應合成2-乙硫基苯并噻唑的新方法。并探討了反應溫度、時(shí)間、堿溶液的濃度對反應收率的影響。優(yōu)化條件為:70℃反應1.5 h,NaOH溶液濃度為30%。優(yōu)化條件下2-乙硫基苯并噻唑收率為86.73%(以2-巰基苯并噻唑計)。工藝原料廉價(jià)易得,操作簡(jiǎn)單。 |
關(guān)鍵詞:2-乙硫基苯并噻唑;2-巰基苯并噻唑;溴乙烷 |
中圖分類(lèi)號:O626 文獻標識碼:A 文章編號:1009-9212(2019)02-0023-03 |
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Synthesis of 2-(Ethylthio)benzo[d]thiazole |
GE Ya-li, PAN Mao-sen, HUANG Yong-xian
(Guangdong University of Petrochemical Technology, Maoming 525000, China) |
Abstract:In this paper, a new method was used to synthesize 2-(ethylthio)benzo[d] thiazole from the reaction of benzo[d]thiazole-2-thiol with bromoethane using alkaline alcohol solution as the reaction media. Several factors were studied including the reaction temperature, reaction time and the concentration of alkaline alcohol solution.The optimum condition was obtained as following: reaction temerature of 70℃, reaction time of 1.5 h, a 30% of sodium hydroxide solution. A yield of 86.73% was achieved under these conditions(at the cost of benzo[d]thiazole-2-thiol).This synthesis route had the advantage of cheap raw materials and simple operation. |
Key words:2-(ethylthio)benzo[d]thiazole; benzo[d]thiazole-2-thiol; bromoethane |
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基金項目:廣東省橡塑材料制備與加工工程技術(shù)研究開(kāi)發(fā)中心開(kāi)放基金(2015B090903083),廣東省科技計劃項目(2017ZC0347),茂名市科技計劃項目(201531),廣東石油化工學(xué)院人才引進(jìn)項目(2015rc01)。
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作者簡(jiǎn)介:葛雅莉(1977-),女,湖南衡陽(yáng)人,碩士,主要從事有機化學(xué)的研究(E-mail: 434336743@qq.com)。
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聯(lián) 系 人: 盤(pán)茂森,博士,主要從事化學(xué)功能材料方面的研究工作。
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收稿日期: 2019-02-1
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