Enantiopure Cis-2,5-Disubstituted 2,5-Dihydropyrroles from d-Glycal-Derived Vinyl Aziridines
摘要:
Upon treatment with the K- and Li-enolates of a methylene active compound, such as dimethyl malonate and dibenzoylmethane, D-allal- and c-galactal-derived vinyl N-mesyl aziridines are stereoselectively transformed, in a unique step, into diastereoisomeric, highly functionalized, enantiopure cis-2,5-disubstituted N-mesyl-2,5-dihydropyrroles.