Synthesis of Chiral Spiro[oxindole-3,2′-pyrrolidine] Derivatives Integrated with Spiro Indane-1,3-dione and Trifluoromethyl Group Pharmacophores via Organocatalyzed Asymmetric [3+2] Annulation
作者:Zhenghong Zhou、Fei Li、Zhuo Li、Youming Wang
DOI:10.1055/a-1993-4132
日期:——
A mild and efficient organocatalyzed [3+2] cycloaddition of isatin-derived ketimines and 2-ylideneindane-1,3-diones has been realized. The resulting spiro[oxindole-3,2′-pyrrolidine]s bearing both a spiro indane-1,3-dione motif and a trifluoromethyl group were obtained in high yields with good diastereo- and enantioselectivities.