第 45 卷第 6 期 |  | Vol. 45 No. 6 | 2015 年 12 月 | Dec 2015 |
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所屬欄目:醫藥及中間體
2-溴-4-甲基噻唑-5-甲酸乙酯的合成 |
曹前明,申 晨,郭 盼,谷崔迎,彭效明,劉 博,晁建平*
(北京石油化工學(xué)院 化學(xué)工程學(xué)院,北京 102600) |
摘 要:以乙酰乙酸乙酯和硫脲為原料反應合成了2-氨基-4-甲基噻唑-5-甲酸乙酯,并就原料配比做了優(yōu)化,再進(jìn)行重氮化反應合成目標產(chǎn)物。其中重氮化反應使用兩種不同的反應方法(亞硝酸鈉重氮化法和亞硝酸酯重氮化法)進(jìn)行對比,兩步總收率為33.6%。目標化合物經(jīng)核磁共振確證。 |
關(guān)鍵詞:2-氨基-4-甲基噻唑-5-甲酸乙酯;2-溴-4-甲基噻唑-5-甲酸乙酯;重氮化 |
中圖分類(lèi)號:R914.5 文獻標識碼:A 文章編號:1009-9212(2015)06-0021-02 |
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Synthesis of 2-Bromo-4-methylthiazole-5-carboxylate |
CAO Qian-ming, SHEN Chen, GUO Pan, GU Cui-ying, PENG Xiao-ming, LIU Bo, CHAO Jian-ping*
(School of Chemistry and Chemical Engineering, Beijing institute of petrochemical Technology, Beijing 102600, China) |
Abstract:Ethyl 2-amino-4-methylthiazole-5-carboxylate was obtained using ethyl acetoacetate and thiourea as starting materials. And then the target product was obtained through the diazo reaction of ethyl 2-amino-4-methylthiazole-5-carboxylate in two different ways. The structure of the products was verified by 1H NMR. The total yield from this process was up to 33.6%. |
Key words:2-amino-4-methylthiazole-5-carboxylate; 2-bromo-4-methylthiazole-5-carboxylate; diazotization |
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基金項目:北京市URT科研項目(2011X00006)。
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作者簡(jiǎn)介:曹前明(1990-),男,安徽壽縣人,碩士,主要從事氟化工及精細化學(xué)品開(kāi)發(fā)研究。
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聯(lián) 系 人:晁建平,副教授,主要從事有機、藥物化學(xué)等領(lǐng)域的研究(E-mail:chaojp@bipt.edu.cn)。
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收稿日期: 2015-11-0
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