详细信息
文献类型:期刊文献
中文题名:环氧嘧磺隆的合成
英文题名:Synthesis of Oxasulfuron
作者:吴忠信[1];廖道华[1];皮红军[1];李超[1];王美娟[1];杨芳[1];师文娟[1]
机构:[1]华东理工大学制药工程系,上海200237
年份:2008
卷号:47
期号:11
起止页码:794
中文期刊名:农药
外文期刊名:Agrochemicals
收录:CSTPCD;;北大核心:【北大核心2004】;
语种:中文
中文关键词:除草剂;环氧嘧磺隆;2-氯磺酰基苯甲酰氯;3-羟基氧杂环丁烷
外文关键词:herbicide; oxasulfuron; 2-chlorosulfonylbenzoyl chloride; 3-hydroxyoxetane
摘要:以2-氯磺酰基苯甲酰氯、3-羟基氧杂环丁烷和氨为原料制得2-磺酰氨基苯甲酸-3-氧杂环丁酯(3);选择三乙胺为缚酸剂,氯甲酸苯酯氨化得到N-(4,6-二甲基嘧啶基-2-基)氨基甲酸苯酯(6)。化合物(3)与(6)缩合反应,制备环氧嘧磺隆。反应总收率41%,含量(HPLC)97.4%。
Oxasulfuron was synthesized by the reaction of 2-(oxetan-3-oxycarbonyl)-phenylsulfonamide(3) with phenyl N-(4,6-dimethylpyrimidin-2-yl)carbamate(6). Using 2-chlorosulfonylbenzoyl chloride, 3-hydroxyoxetane and ammonia as starting materials, compound(3) was conveniently obtained. Meantime, amidation of phenyl chlorocarbonate afforded the intermediate(6), while triethylamine was selected as a more efficient deacid reagent. The total yield was 41%, and the purity of the target product was up to 97.4%.
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