Asymmetric Substitution at the Tetrasubstituted Chiral Carbon: Catalytic Ring-Opening Alkylation of Racemic 2,2-Disubstituted Aziridines with 3-Substituted Oxindoles
作者:Kohsuke Ohmatsu、Yuichiro Ando、Takashi Ooi
DOI:10.1021/ja411647x
日期:2013.12.18
A highly diastereo- and enantioselective ring-opening alkylation of racemic 2,2-disubstituted aziridines with 3-substituted oxindoles is achieved under the catalysis of a chiral 1,2,3-triazolium salt. This reaction represents a hitherto unknown, catalytic stereoselective carbon carbon bond formation through direct substitution at the tetrasubstituted chiral carbon.