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第 49 卷第 3 期Vol. 49 No. 3
2019 年 6 月Jun 2019

所屬欄目:醫藥及中間體

1-芐基-6-溴吲哚-3-甲醛的合成
朱周靜1,2,陳革豫1,2,李可新1,仝紅娟1,2,劉 斌1,2 (1. 陜西國際商貿學(xué)院 醫藥學(xué)院,陜西 西安712046;2. 陜西省中藥綠色制造技術(shù)協(xié)同創(chuàng )新中心,陜西 西安712046)
摘 要:以6-溴吲哚(2)為原料,通過(guò)Vilsmeier-Haack反應、N-芐基保護,兩步反應合成得到1-芐基-6-溴吲哚-3-甲醛(1)。對反應工藝進(jìn)行了優(yōu)化,確定合成6-溴-1H-吲哚-3-甲醛(3) 的反應溫度為25℃,反應時(shí)間為5 h;合成1 的優(yōu)化反應條件為:n(3)∶n(BnBr)=1.0∶1.3,n(3)∶n(KOH)=1.0∶1.5,反應溫度25℃,反應時(shí)間3 h。在優(yōu)化條件下,兩步反應總收率86.5 %。產(chǎn)物結構經(jīng)1H NMR和ESI-MS確證。
關(guān)鍵詞:6-溴吲哚-3-甲醛;1-芐基-6-溴吲哚-3-甲醛;Vilsmeier-Haack反應
中圖分類(lèi)號:O626  文獻標識碼:A  文章編號:1009-9212(2019)03-0031-04
Synthesis of 1-Benzyl-6-bromo-1H-indole-3-carbaldehyde
ZHU Zhou-jing1,2, CHEN Ge-yu1,2,LI Ke-xin1, TONG Hong-juan1,2, LIU Bin1,2 (1. School of Pharmacy, Shaanxi Institute of International Trade & Commerce, Xi'an 712046, Shaanxi, China; 2. Collaborative Innovation Center of Green Manufacturing Technology for Traditional Chinese Medicine in Shaanxi Province, Xi'an 712046, Shaanxi, China)
Abstract:1-Benzyl-6-bromo-1H-indole-3-carbaldehyde (1) was synthesized from 6-bromo-1H-indole-3-carbaldehyde (2) through a two-step reaction in a total yield of 86.5%, This two-step reaction was involving Vilsmeier-Haack reaction and N-benzyl protected reaction. The reaction conditions were optimized as follows: in the Vilsmeier-Haack reaction, the reaction temperature was of 25℃ and reaction time was of 5 h; In the N-benzyl protected reaction, n(3)∶n(BnBr)=1.0∶1.3, n(3)∶n(KOH)=1.0∶1.5, the reaction temperature was of 25℃ and reaction time was of 3 h. The structure of the product was confirmed by 1H NMR and ESI-MS.
Key words:6-bromo-1H-indole-3-carbaldehyde; 1-benzyl-6-bromo-1H-indole-3-carbaldehyde; Vilsmeier-Haack reaction
基金項目:陜西國際商貿學(xué)院校級項目(SMXY201805)。
作者簡(jiǎn)介:朱周靜(1982-),女,陜西西安人,碩士研究生,講師,研究方向:藥物合成及工藝研究(E-mail:46930121@qq.com)。
收稿日期:2019-03-13
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