Cu(II)-catalyzed highly enantioselective intramolecular cyclization of N-alkenylureas was developed for the concise assembly of chiral vicinal diamino bicyclic heterocycles. Facile removal of carbonyl group of the carbamido moiety allowed for ready access to enantioenriched cyclic vicinal diamines.
开发了第一个Cu(II)催化的N-烯基
脲的高对映选择性分子内环化反应,用于手性邻位二
氨基双环杂环的简洁组装。轻松去除
氨基甲酸酯基团的羰基使得可以容易地获得对映体富集的环状邻位二胺。