acetate of (2S)-2-N-tert-butoxycarbonylamino-3-(4-methoxyphenyl)propan-1-yle;[(2S)-3-(4-methoxyphenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propyl] acetate
[EN] NOVEL INTERMEDIATES FOR THE SYNTHESIS OF (R)-TAMSULOSIN AND OF ITS PHARMACEUTICALLY ACCEPTABLE SALTS AND PROCESS FOR THEIR PREPARATION [FR] NOUVEAUX INTERMEDIAIRES DESTINES A LA SYNTHESE DE LA (R)-TAMSULOSINE ET DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES, ET LEUR PROCEDE DE PREPARATION
Binaphthalene-Derived Iminium Salt Catalysts for Highly Enantioselective Asymmetric Epoxidation
作者:Philip C. Bulman Page、Benjamin R. Buckley、Mohamed M. Farah、A. John Blacker
DOI:10.1002/ejoc.200900252
日期:2009.7
catalysts for asymmetric epoxidation has received considerable attention. In this manuscript we describe the design, preparation, and use of new highly selective iminiumsaltorganocatalysts for asymmetric epoxidation, based around a chiral binaphthalene motif coupled with a chiral substituted dioxane moiety. The new catalysts have been tested in the catalytic asymmetric epoxidation of unfunctionalized