Highly enantioselective copper-catalyzed propargylic amination to access <i>N</i>-tethered 1,6-enynes
作者:Si-Jia Li、Jian Huang、Jin-Yu He、Rui-Jin Zhang、Hao-Dong Qian、Xue-Lin Dai、Han-Han Kong、Hao Xu
DOI:10.1039/d0ra07698h
日期:——
A highly enantioselective copper-catalyzed propargylic amination starting from benzylic allylic amines has been developed with a new chiral N,N,P ligand. A series of N-tethered 1,6-enynes were synthesized in good to excellent yields with excellent enantioselectivities. Utilization of transition metal-catalyzed cycloisomerization of 1,6-enynes provides several enantioselectively enriched chiral five-membered
以苄基烯丙基胺为原料,开发了一种高度对映选择性的铜催化炔丙基胺化反应,并使用了一种新的手性 N,N,P 配体。一系列N -tethered 1,6-enynes 以良好至优异的产率合成,具有优异的对映选择性。利用过渡金属催化的 1,6-烯炔环异构化,有效地提供了几种对映选择性富集的手性五元 N-杂环。