AgF-Mediated Fluorinative Cross-Coupling of Two Olefins: Facile Access to α-CF<sub>3</sub>Alkenes and β-CF<sub>3</sub>Ketones
作者:Bing Gao、Yanchuan Zhao、Jinbo Hu
DOI:10.1002/anie.201409705
日期:2014.11.12
A AgF‐mediated fluorination with a concomitant cross‐coupling between a gem‐difluoroolefin and a non‐fluorinated olefin is reported. This highly efficient method provides facileaccess to both α‐CF3 alkenes and β‐CF3 ketones, which otherwise remain challenging to be directly prepared. The application of this method is further demonstrated by the synthesis of bioactive isoxazoline derivatives. This
AgF-Mediated Fluorinative Homocoupling of <i>gem</i>-Difluoroalkenes
作者:Bing Gao、Yanchuan Zhao、Chuanfa Ni、Jinbo Hu
DOI:10.1021/ol403083e
日期:2014.1.3
A novel silver(I)-fluoride-mediated homocoupling reaction of beta,beta-difluorostyrene derivatives is described. The transformation is initiated via nucleophilic addition of silver(I) fluoride to beta,beta-difluorostyrenes, which is followed by dimerization of the corresponding benzylsilver intermediates. The reaction shows good substrate scope, functional group tolerance, and represents the first report on the reactivity of (alpha-trifluoromethyl)benzylsilver species.