Chiral Atropisomeric 8,8′-Diiodobinaphthalene for Asymmetric Dearomatizing Spirolactonizations in Hypervalent Iodine Oxidations
作者:Toshifumi Dohi、Hirotaka Sasa、Keitaro Miyazaki、Mihoyo Fujitake、Naoko Takenaga、Yasuyuki Kita
DOI:10.1021/acs.joc.7b02037
日期:2017.11.17
A new type of binaphthyl-based chiral iodide functionalized at positions 8 and 8′ of the naphthalene rings has been found as a promising structural motif for the asymmetric hypervalentiodine(III) oxidations, specifically, for the dearomatizing spirocyclization of naphthol carboxylic acids showing expectedly better enantioselectivities versus other atropisomeric biaryls, i.e., a conventionally used