An orthogonal set of Cu-catalysts for the selective mono-arylation of alkyl aryl diols using aryl iodides is presented. Picolinic acid ligated copper catalyst provided phenol O-arylation only, while alkyl aryl ethers are generated by ligand-free copper catalyst in the presence of 2 equivalents NaOt-Bu.
本文介绍了一组用于选择性单芳基化烷基芳基二醇的正交
铜催化剂集,采用芳基
碘为原料。借助
吡啶甲酸配位的
铜催化剂,仅实现了
酚的O-芳基化;而在2当量NaOt-Bu的存在下,无
配体铜催化剂则生成了烷基芳基醚。