Alkylation of nonstabilized aziridinylmagnesiums catalyzed by Cu(I) iodide: a new synthesis of amines, including optically active form, bearing a quaternary chiral center
sulfoxide–magnesium exchange, with primary alkyl halides in the presence of Cu(I) iodide as a catalyst, was realized. The alkylated aziridines were converted in quantitative yield to amines bearing a quaternary chiral center by hydrogenation with Pd(OH)2. A synthesis of the opticallyactiveamines, bearing a quaternary chiral center, was realized, starting from opticallyactive (R)-chloromethyl p-tolyl sulfoxide
Generation of oxiranyllithiums and oxiranyl Grignard reagents having a carbanion-destabilizing group from sulfinyloxiranes: Their property and an application to asymmetric synthesis of epoxides and alcohols
The first generation of oxiranyllithiums and oxiranyl Grignardreagents having a carbanion-destabilizing group (alkyl group) was realized from sulfinyloxiranes via the ligand exchange reaction of sulfoxides with tert-butyllithium or ethylmagnesium chloride in THF at −80 to −100°C. The generated oxiranyllithiums were found to be very unstable; however, these anions reacted with several electrophiles
.alpha.,.beta.-Epoxy sulfoxides as useful intermediates in organic synthesis. 21. A novel approach to the asymmetric synthesis of epoxides, allylic alcohols, .alpha.-amino ketones, and .alpha.-amino aldehydes from carbonyl compounds through .alpha.,.beta.-epoxy sulfoxides using the optically active p-tolylsulfinyl group to induce chirality
.alpha.,.beta.-Epoxy sulfoxides as useful intermediates in organic synthesis. 22. Stereospecific desulfinylation of sulfinylaziridines with alkylmetals: a novel synthesis including asymmetric synthesis of (Z)-N-arylaziridines and some mechanistic studies