.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
Stereospecific desulfinylation of sulfinylaziridines with ethylmagnesium bromide: A novel synthesis of (Z)-N-arylaziridines
作者:Tsuyoshi Satoh、Teruhiko Oohara、Koji Yamakawa
DOI:10.1016/s0040-4039(00)80425-6
日期:1988.1
A novel synthesis of (Z)-N-arylaziridines was realized by the stereospecific desulfinylation of (E)-(N-aryl)sulfinylaziridines which were synthesized from 1-chloroalkyl p-tolyl sulfoxides and N-arylimines in high yields.
Generation of Aziridinyllithiums from Sulfinylaziridines with tert-Butyllithium: Properties, Reactivity, and Application to a Synthesis of α,α-Dialkylamino Acid Esters and Amides Including an Optically Active Form
aziridinyllithiums having several alkyl groups were investigated. As an extension of this method, a synthesis of α,α-dialkylamino acid esters, including an opticallyactive form, and amides was realized via the aziridinyllithiums. N-Non substituted α,α-dialkylamino acid esters were synthesized starting from N-(4-methoxyphenyl) aldimine.
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