Enantioselective, Thiourea-Catalyzed Intermolecular Addition of Indoles to Cyclic N-Acyl Iminium Ions
作者:Emily A. Peterson、Eric N. Jacobsen
DOI:10.1002/anie.200902420
日期:——
Fair game for indoles, N‐acyl iminiumion intermediates underwent intermolecularaddition by these nucleophiles under the catalysis of a chiral thiourea Schiff base derivative. A variety of functionalized indole frameworks were assembled with high enantioselectivity from simple precursors by this method (see scheme; TMS=trimethylsilyl; R=H, Me, vinyl, OMe, F, Cl, Br; R1=benzyl, methyl; n=1,2).