| 3-甲基噻吩自由基溴化反应研究 |
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| 引用本文： | 王娟,王春英,赵立娟,王萍,刘福德.3-甲基噻吩自由基溴化反应研究[J].天津理工大学学报,2011,27(3):67-69. |
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| 作者姓名： | 王娟 王春英 赵立娟 王萍 刘福德 |
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| 作者单位： | 天津理工大学化学化工学院,天津,300384 |
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| 摘 要： | 研究了以3-甲基噻吩、NBS为原料的光引发及化学引发自由基溴化反应,发现光引发方法在低于25℃时只生成3-甲基-2-溴噻吩.L9(34)正交实验表明,化学引发方法在70℃、反应时间为3 h、3-甲基噻吩和NBS的摩尔比为0.9∶1时,3-溴甲基噻吩选择性最高,为52.4%.
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| 关 键 词： | 3-甲基噻吩 3-溴甲基噻吩 自由基溴化 2-溴-3-甲基噻吩 |
Investigation on radical bromination of 3-Methylthiophene |
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| WANG Juan,WANG Chun-ying,ZHAO Li-juan,WANG Ping,LIU Fu-de.Investigation on radical bromination of 3-Methylthiophene[J].Journal of Tianjin University of Technology,2011,27(3):67-69. |
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| Authors: | WANG Juan WANG Chun-ying ZHAO Li-juan WANG Ping LIU Fu-de |
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| Institution: | (School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China) |
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| Abstract: | Radical bromination of 3-methylthiophene with NBS by photoinition and AIBN inition has been investigated.It shows that when reaction temperature is less than 25 ℃ only 3-methyl-2-bromothiophene is synthesized by photoinition.Orthogonal experiment shows that when initiator is AIBN and reaction temperature is 70 ℃,reaction time is 3h,the ratio of 3-methylthiophene to NBS is 0.9∶ 1,the selectivity of 3-bromomethylthiophene is 52.4%. |
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| Keywords: | 3-methylthiophene 3-bromomethylthiophene 3-methyl-2-bromothiophene radical bromination |
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