A novel and expedient synthesis of optically active fluoroalkylated amino acids via palladium-catalyzed allylic rearrangement and Ireland–Claisen rearrangement
作者:Tsutomu Konno、Takeshi Daitoh、Takashi Ishihara、Hiroki Yamanaka
DOI:10.1016/s0957-4166(01)00485-2
日期:2001.10
chiral α-fluoroalkylated mesylates with carboxylic acids in the presence of a palladium catalyst proceeded smoothly to give γ-fluoroalkylated allyl esters in excellent yields. The esters were subsequently subjected to Ireland–Claisen rearrangement without isolation, leading to the corresponding homochiral α-fluoroalkylated-β,γ-unsaturated amino acids in good yields.
在钯催化剂的存在下,各种手性α-氟代烷基化的甲磺酸酯与羧酸的烯丙基取代反应顺利进行,以优异的产率得到了γ-氟代烷基化的烯丙基酯。酯随后未经分离就进行了爱尔兰-克莱森重排,从而以高收率得到了相应的手性α-氟烷基化-β,γ-不饱和氨基酸。