A new family of cyclometalated (N-heterocyclic carbene)-PtII complexes bearing monodentate phosphines as ancillary ligands has been designed for use as precatalysts in 1,6-enyne cycloisomerization reactions. Highly enantioselective skeletal rearrangements of allylpropargyl-tosylamide derivatives have been developed by using (S)-Ph-Binepine as the chiral auxiliary. Enantiomeric excesses up to 97% have
设计了一个新的环
金属化的(N-杂环卡宾)-Pt II配合物家族,其以单齿膦作为辅助
配体,被用作1,6-烯炔环异构化反应的预催化剂。通过使用(S)-Ph-Binepine作为手性助剂,开发了烯丙基炔丙基-
甲苯磺酰胺衍
生物的高度对映选择性骨架重排。已获得高达97%的对映体过量。