A Chiral Iron Disulfonate Catalyst for the Enantioselective Synthesis of 2-Amino-2′-hydroxy-1,1′-binaphthyls (NOBINs)
作者:Alina Dyadyuk、Vlada Vershinin、Hadas Shalit、Hen Shalev、Nagnath Yadav More、Doron Pappo
DOI:10.1021/jacs.1c13020
日期:2022.3.2
yields and enantioselective ratios (up to 99% yield and 96:4 er). The [Fe((Ra)-BINSate)]+ catalyst was designed as a chiral version of FeCl3 with multicoordination sites available for binding the two coupling partners 1 and 2 as well as the oxidant. Our structure–selectivity and activity study, which covered most of the important positions in the NOBIN scaffold, revealed the effect of different substitution
报道了一种用于不对称催化的新型手性氧化还原二磺酸铁络合物。[Fe(( R a )-BINSate)] + (BINSate = 1,1'-binaphthalene-2,2'-disulfonate) 配合物有效促进 2-萘酚 ( 1 ) 和 2-氨基萘之间的对映选择性氧化交叉偶联衍生物 ( 2 ),提供光学富集的 ( R a )-2-amino-2'-hydroxy-1,1'-binaphthyls (NOBINs),具有出色的产率和对映选择性比(高达 99% 的产率和 96:4 er)。[Fe(( Ra ) -BINSate )] +催化剂被设计为 FeCl 3的手性形式具有可用于结合两个偶联配偶体1和2以及氧化剂的多配位点。我们的结构选择性和活性研究涵盖了 NOBIN 支架中的大部分重要位置,揭示了不同取代模式对偶联效率和立体选择性的影响。