Studies on the radical addition reaction of perfluoroalkyl iodides with 2,3-allenols and the Pd-catalyzed kinetic resolution via Sonogashira coupling reaction
作者:Zhichao Ma、Rong Zeng、Chunling Fu、Shengming Ma
DOI:10.1016/j.tet.2011.08.044
日期:2011.11
A radical addition reaction promoted by Na2S2O4 of perfluoroalkyl iodides with 2,3-allenols affording E/Z mixtures of 3-iodo-4-perfluoroalkyl-substituted allylic alcohols has been studied. Kinetic resolution with Sonogashira coupling reaction was applied to afford the Z isomer of 3-iodo-4-perfluoroalkyl-substituted allylic alcohol (Z-3) and the E isomer of conjugated enynic diols (E-5) in 39–52% and
已经研究了由全氟烷基碘化物的Na 2 S 2 O 4与2,3-烯醇促进的自由基加成反应,得到3碘-4-全氟烷基取代的烯丙基醇的E / Z混合物。与Sonogashira偶联反应动力学拆分施加到得到Ž 3-碘-4-全氟烷基-取代的烯丙醇的异构体(ž - 3)和Ë缀合enynic二醇(异构体ë - 5)在39-52%和22分别为–40%的收益率。