Highly enantioselective Michael reactions catalyzed by a chiral quaternary ammonium salt. Illustration by asymmetric syntheses of (S)-ornithine and chiral 2- …
... Volume: Page: Digital Object Identifier (DOI). ... Organic Letters. ... the level of enantioselectivity. The chiral alcs. II (R = Me, benzyl, 2-PhC6H4, hexyl) were prepd. ...