presence of 5 mol% of tetrakis(triphenylphosphine)palladium(0), the reaction of chiral fluorinated propargyl mesylates with a variety of organozinc reagents proceeded smoothly in a highly stereoselective fashion to give the corresponding optically active fluorine-containing trisubstituted allenes in good yields without any loss of optical purity through the reaction.
在 5 mol% 的四(
三苯基膦)
钯(0)存在下,手性
氟化
甲磺酸炔
丙酯与多种
有机锌试剂的反应以高度立体选择性的方式顺利进行,得到相应的光学活性含
氟三取代
丙二烯。在反应过程中没有任何光学纯度损失的产率。