One-Pot Addition-Intramolecular N-Cyclization of Carbamates Mediated by Alkali Metallic Reagents as an Approach to 4-(Fluoroalkyl)oxazolidin-2-ones
作者:Xiang Fang、Fan-Hong Wu、Xue-Yan Yang、Zheng-Hua Ju、Yun-Li Hu
DOI:10.1055/s-0030-1260239
日期:2011.11
straightforward strategy for the synthesis of 4-(fluoroalkyl)oxazolidin-2-ones via one-pot addition-intramolecular N-cyclization of allyl carbamates with fluoroalkyl iodides is presented. The reaction proceeded in moderate to good yield through regiocontrol and an increase in the reactivity of the ambident nucleophiles by the use of alkali metallic reagents. allyl carbamates - 4-(fluoroalkyl)oxazolidin-2-ones -
提出了一种温和简单的策略,通过一锅加成-分子内烯丙基氨基甲酸酯与氟代烷基碘的N-环化反应,合成4-(氟代烷基)恶唑烷-2-酮。通过区域控制和使用碱金属试剂增加环境亲核试剂的反应性,反应以中等至良好的产率进行。 氨基甲酸烯丙酯-4-(氟烷基)恶唑烷-2-酮-加成-分子内N-环化-碱金属试剂