Diastereospecific synthesis of diaziridines from D-mannitol. Access to chiral α-aminoacids.
作者:A Duréault、C Greck、J.C Depezay
DOI:10.1016/s0040-4039(00)84935-7
日期:1986.1
Nucleophilic opening of chiral diastereoisomeric diaziridines obtained from D- mannitol leads to precursors of D or L α-aminoacids (or aldehydes) and also provides a means of synthesizing polyhydroxylated piperidines.
Nucleophilic opening of chiral bis-aziridines: A route to enantiomerically pure α-amino acids and polysubstituted piperidines
作者:A Duréault、I Tranchepain、C Greck、J-C Depezay
DOI:10.1016/s0040-4039(00)95507-2
日期:1987.1
protected chiral functionalised bis-aziridines, prepared from D-mannitol, are opened by various organometallic reagents (organomagnesium,-lithium and -copper derivatives) as well as by heteronucleophiles (N3-, Br-, Cl-, HS-, PhS-). Orientation of the reaction toward diopening (route to enantiomerically pure α-amino acids) or toward heterocyclisation (route to chiral, polysubstituted piperidines) is