Regio- and Diastereoselective Access to Fused Isoxazolidines via Ru(II)-Catalyzed C–H Activation of Nitrones and Coupling with Perfluoroalkylolefins
作者:Yunyun Li、Fang Xie、Yuan Liu、Xifa Yang、Xingwei Li
DOI:10.1021/acs.orglett.7b03775
日期:2018.1.19
synthsis of fluorinated isoxazolidines in bicyclic settings has been realized via Ru(II)-catalyzed C–H activation of aryl nitrones with perfluoroalkyl-substituted olefins as the coupling partner. The reaction proceeded via initial chelation-assisted C(aryl)–H allylation followed by regio- and diastereoselective intramolecular dipolar addition between the nitrone directing group and the olefin unit.