Enantioselective Synthesis of Binaphthyl Polymers Using Chiral Asymmetric Phenolic Coupling Catalysts: Oxidative Coupling and Tandem Glaser/Oxidative Coupling
作者:Barbara J. Morgan、Xu Xie、Puay-Wah Phuan、Marisa C. Kozlowski
DOI:10.1021/jo070636+
日期:2007.8.1
to the optimized asymmetricoxidativephenoliccoupling conditions to form chiral polynaphthyls. A combination of NMR and HPLC measurements secured the selectivity of the asymmetriccoupling. In the second method, substrates containing only one naphthalene were utilized. By incorporating a 2-naphthol and a terminal alkyne, the chiral copper catalysts effect both Glaser−Hay coupling of the alkyne and