作者:Norbert De Kimpe、Roland Verhé、Laurent De Buyck、Hashim Hasma、Niceas Schamp
DOI:10.1016/0040-4020(76)80167-6
日期:1976.1
yield by the reaction of α-chloroaldimines with potassium cyanide in methanol. On gas chromatographic analysis, the α-cyanoenamines were partially isomerized to the tautomeric imidoylcyanides. Both isomers have been isolated and spectroscopically characterized.
Reduction of 4-(Haloalkyl)azetidin-2-ones with LiAlH<sub>4</sub> as a Powerful Method for the Synthesis of Stereodefined Aziridines and Azetidines
作者:Willem Van Brabandt、Yves Dejaegher、Robin Van Landeghem、Norbert De Kimpe
DOI:10.1021/ol053015g
日期:2006.3.1
[reaction: see text] A new synthesis of stereodefined aziridines and azetidines, starting from 4-(1- or 2-haloalkyl)azetidin-2-ones, is described. Treatment of the latter compounds with LiAlH(4) gave 1,2-fission of the beta-lactam, followed by an intramolecular nucleophilic substitution of the halogen, giving rise to the formation of 2-(1-alkoxy-2-hydroxyethyl)aziridines in the case of 4-(1-haloalkyl)azetidin-2-ones