Sodium dithionite initiated reaction of pent-4-en-1-amines with fluoroalkyl iodides for the synthesis of 2-fluoroalkyl pyrrolidine derivatives
作者:Yaoping Zhu、Xueyan Yang、Xiang Fang、Xianjin Yang、LingLing Ye、Wei Cai、Yan Zhang、Fanhong Wu
DOI:10.1016/j.tet.2010.11.090
日期:2011.2
Pent-4-en-1-amines are reactive to fluoroalkyl iodides with respect to sodium dithionite initiated free radical addition reactions. We report here the development of a novel and efficient synthesis of 2-fluoroalkyl pyrrolidine derivatives by sodium dithionite initiated one-pot reaction of pent-4-en-1-amines bearing various protecting groups with fluoroalkyl iodides. Among which, the N-benzyl-pent-4-en-1-amine
关于连二亚硫酸钠引发的自由基加成反应,Pent-4-en-1-胺与氟代烷基碘有反应性。我们在这里报告通过连二亚硫酸钠引发的新型有效合成2-氟烷基吡咯烷衍生物的开发,该合成引发了带有氟烷基碘的带有各种保护基团的戊-4-烯-1-胺的一锅法反应。其中,N-苄基-戊-4-烯-1-胺在本研究中显示出对反应条件的最佳耐受性,可提供所需的加合物3,中度至良好收率为65-85%。