The preparation of new chiral biphenylic λ3‐iodane reagents bearing transferable alkynyl ligands is described. These reagents transfer their carbon‐based ligands onto β‐ketoesters with an enantiomeric excess (ee) up to 68 %, and most remarkably, enable the dearomative alkynylation of naphthols in good to high yields up to 84 % ee.
新的手性biphenylic的λ制备3种-iodane试剂轴承转让炔基
配体进行说明。这些试剂以高达68%的对映体过量(ee)将其碳基
配体转移到β-
酮酸酯上,最显着的是,可以使
萘酚脱芳基烷基化,产率高达84% ee。