The greatest yield in the synthesis of diaziridines from carbonyl compounds, amines, and aminating reagents in water is achieved at a specific pH, which shifts to less alkaline values with increasing -I effect of the substituents in the carbonyl compound and with decreasing pK(BH+) value of the amine. The role of pH is related to the conditions for the generation of an immonium from the intermediate alpha-aminocarbinol. The nuclear Overhauser effect was used to determine the orientation of the substituents in several diastereomers of the didikyldiaziridines obtained.
作者:V. V. Kuznetsov、N. N. Makhova、Yu. A. Strelenko、L. I. Khmel'nitskii
DOI:10.1007/bf00959732
日期:1991.12
The greatest yield in the synthesis of diaziridines from carbonyl compounds, amines, and aminating reagents in water is achieved at a specific pH, which shifts to less alkaline values with increasing -I effect of the substituents in the carbonyl compound and with decreasing pK(BH+) value of the amine. The role of pH is related to the conditions for the generation of an immonium from the intermediate alpha-aminocarbinol. The nuclear Overhauser effect was used to determine the orientation of the substituents in several diastereomers of the didikyldiaziridines obtained.
Synthesis and structure of 1-[ω-(3,3-dialkyldiaziridin-1-yl)alkyl]-3,3-dialkyldiaziridines
作者:V. Yu. Petukhova、Yu. A. Strelenko、K. A. Lyssenko、N. N. Makhova
DOI:10.1007/s11172-007-0241-7
日期:2007.8
A method for the synthesis of 1-[ω-(3,3-dialkyldiaziridin-1-yl)alkyl]-3,3-dialkyldiaziridines based on the reaction of ketoxime O-arenesulfonates with alkylenediamines was developed. Diastrereomers (the racemic and meso forms) of 1-[2-(3,3-dimethyldiaziridin-1-yl)ethyl]-3,3-dimethyldiaziridine were isolated. The structure of the meso form was confirmed by X-ray diffraction analysis.