13220-44-5Relevant articles and documents
Chiral N,N′-Dioxide/Scandium(III)-Catalyzed Asymmetric Alkylation of N-Unprotected 3-Substituted Oxindoles
He, Changqiang,Cao, Weidi,Zhang, Jianlin,Ge, Shulin,Feng, Xiaoming
supporting information, p. 4301 - 4305 (2018/10/02)
An efficient enantioselective alkylation of N-unprotected 3-substituted oxindoles was realized by using a chiral N,N′-dioxide/scandium(III) complex as the catalyst. A wide range of 3,3-dialkyl substituted oxindoles with quaternary stereocenters were obtained in high yields and ee values (up to 98% yield and 99% ee). (Figure presented.).