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机构地区:[1]浙江工业大学化学工程与材料学院,浙江杭州310014
出 处:《合成化学》2015年第10期899-903,共5页Chinese Journal of Synthetic Chemistry
基 金:浙江省公益性技术应用研究计划资助项目(2012C21115)
摘 要:以甲基咪唑(或咪唑)和N-取代芳基-3-氯丙酰胺为原料,与KPF6经离子交换制得6个新型酰胺基功能化离子液体(2a^2c和3a^3c)。以2-溴-6-甲氧基萘与烯丙醇反应为模板反应,2或3为反应介质,考察反应的转化率和区域选择性。结果表明:3为反应介质时,转化率和区域选择性均高于2。以溴代芳烃和烯丙醇为原料,3c为反应介质,醋酸钯催化Heck反应制得2-取代芳烃烯丙醇化合物,收率85%~89%,立体选择性均大于99%。所得产物的结构均经1H NMR,13C NMR,IR,EI-MS和元素分析表征。Six new amide-multifunctionalized ionic liquids( 2a - 2c,3a - 3c) were obtained by ion exchange of KPF6 with 1-methyimidazole( or imidazole) and N-aryl-3-chlorobutanamide. The conversion and regioselectivities were investigated by the Heck reaction of 2-bromo-6-methoxynaphthylene with allyl alcohol using 2 or 3 as the medium. The results showed that the conversion and regioselectivities in 3 was better than in 2. Substituted aryl allyl alcohols were synthesized with high yields( 85% - 89%) and regioselectivities( 〉 99%) by Heck reaction of haloaryl compounds with allyl alcohol,using 3c as the medium and palladium acetate as the catalyst. The structures were characterized by^1 H NMR,^13 C NMR,IR,EI-MS and elemental analysis.
关 键 词:HECK反应 酰胺基功能化离子液体 烯丙醇化合物 合成 应用
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