Microwave-assisted expeditious synthesis of 5-fluoroalkyl-3-(aryl/alkyl)-oxazolidin-2-ones
作者:Bo Yang、Luyan Shi、JingJing Wu、Xiang Fang、Xueyan Yang、Fanhong Wu
DOI:10.1016/j.tet.2013.01.052
日期:2013.4
convenient protocol for synthesis of 5-fluoroalkyl-3-(aryl/alkyl)-oxazolidin-2-ones is described. The reaction of allyl (aryl/alkyl) carbamates with fluoroalkyl iodide initiated by sodium dithionite in aqueous acetonitrile resulted in adducts that undergoes a cyclization assisted by microwave irradiation to form 5-fluoroalkyl-3-(aryl/alkyl)-oxazolidin-2-ones with high yields. It was also found that
描述了合成5-氟烷基-3-(芳基/烷基)-恶唑烷-2-酮的有效和方便的方案。由连二亚硫酸钠在乙腈水溶液中引发的烯丙基(芳基/烷基)氨基甲酸酯与氟代烷基碘的反应生成加合物,该加合物在微波辐射的辅助下进行环化反应,生成5-氟代烷基-3-(芳基/烷基)-恶唑烷-2-酮高产。还发现,可以通过AIBN启动的一锅加成环化反应从苄基烯丙基(芳基/烷基)氨基甲酸酯和氟代烷基碘更有效地形成产物。