Bimetallic catalysis in the highly enantioselective ring–opening reactions of aziridines
作者:Bin Wu、Judith C. Gallucci、Jon R. Parquette、T. V. RajanBabu
DOI:10.1039/c3sc52929k
日期:——
lanthanide-salen complexes, readily prepared from commercially available metal isopropoxides, 2-dimethylaminoethanol, 1,1′-binaphthyl-2,2′-diamine and 2-hydroxy-3-methoxybenzaldehyde (3 steps) catalyze highly enantioselective ring opening (∼90–99% ee) reactions of meso-N-4-nitrobenzoyl aziridines by TMSCN and TMSN3. The TMSN3-mediated reactions give the highest enantioselectivities reported to date