Base-catalyzed isomerization of achiral (E,E)-1,2,5-triphenylphospholane oxide leads to the racemic (E,Z)-isomer. Resolution of Supercritical Fluid Chromatography (SFC) followed by reduction gives the two enantiomers. The activity of this new ligand is tested in palladium-catalyzed coupling of cyclohex-2-enyl acetate with nucleophiles.
碱催化的非手性(E,E)-1,2,5-三苯膦氧化物的异构化导致外消旋(E,Z)-异构体。拆分超临界流体色谱(SFC),然后还原,得到两种对映异构体。在
钯催化的环己-2-烯基
乙酸酯与亲核试剂的
钯催化偶联中测试了这种新
配体的活性。