Preparation and catalytic applications of partially fluorinated binaphthol ligands
作者:Shahla Yekta、Larissa B Krasnova、Brian Mariampillai、Christine J Picard、Gang Chen、Subramanian Pandiaraju、Andrei K Yudin
DOI:10.1016/j.jfluchem.2003.11.024
日期:2004.4
New partially fluorinated binaphthols were obtained using a copper-catalyzed oxidativecoupling. The corresponding enantiomerically pure compounds were prepared by fractional crystallization of the corresponding bis(menthyl)carbamates. Nucleophilic aromatic substitution using oxygen- and carbon-based nucleophiles resulted in functionalized derivatives without concomitant racemization. The titanium(IV)