详细信息
文献类型:期刊文献
中文题名:2-巯基-3-苄氧基吡啶的合成
英文题名:Synthesis of 2-Mercapto-3-benzyloxypyridine
作者:皮红军[1];廖道华[1];董捷[1];王宏健[1];楼江松[1]
机构:[1]华东理工大学制药工程系,上海200237
年份:2006
卷号:36
期号:5
起止页码:47
中文期刊名:精细化工中间体
外文期刊名:Fine Chemical Intermediates
收录:CSTPCD
语种:中文
中文关键词:除草剂;三氟啶磺隆;2-巯基-3-苄氧基吡啶;2-氯-3-羟基吡啶
外文关键词:herbicide ; trifloxysulfuron; 2-mercapto-3-benzyloxypyridine; 2-chloro-3-hydroxylpyridine; synthesis
摘要:报道了超高效除草剂三氟啶磺隆的中间体2-巯基-3-苄氧基吡啶的合成方法。首先以2-氯-3-羟基吡啶(2)为原料,与溴化苄(3)在丙酮中反应制备2-氯-3-苄氧基吡啶(4);化合物4再与硫脲在无水乙醇反应得到2-巯基-3-苄氧基吡啶。总收率75.61%。
2-Mercapto-3-benzyloxypyridine (1) was an important intermediate of herbicide trifloxysulfuron. A new practical synthesis method of 2-mercapto-3-benzyloxypyridine (1) was described in the paper. 2-Chloro-3- hydroxylpyridine was treated with 1.0 equiv, of benzyl bromide in acetone to form 2-chloro-3-benzyloxypyridine (4) in 97% yield. The compound 4 then reacted with 1.2 equiv, of thiourea in anhydrous ethanol to produce 2- mercapto-3-benzyloxypyridine (1) in 77.95% yield. The total yield of the product was 75.61%.
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