Author/Authors :
Gonçalves، نويسنده , , Maria Helena and Martinez، نويسنده , , Alexandre and Grass، نويسنده , , Stéphane and Page، نويسنده , , Philip C. Bulman and Lacour، نويسنده , , Jérôme، نويسنده ,
Abstract :
Homologous biphenyl and (diastereomeric) binaphthyl tertiary azepines and quaternary iminium salts were prepared from (+)-(S,S)-l-acetonamine. Both the amines and iminium ions behave as effective catalysts for the enantioselective epoxidation of unfunctionalized olefins (ee up to 83%).
