The reaction of 4-(2R-1-chloro-2-oxoethylidene) -substituted imidazolidine-1-oxyl with sodium azide gives monoimines of alpha -diketones, derivatives of 3-imidazoline nitroxides. Reactions of these products with nitrogen binucleophiles were used to prepare various heterocyclic compounds containing an imidazoline nitroxide moiety.
The reaction of 4-(2R-1-chloro-2-oxoethylidene) -substituted imidazolidine-1-oxyl with sodium azide gives monoimines of alpha -diketones, derivatives of 3-imidazoline nitroxides. Reactions of these products with nitrogen binucleophiles were used to prepare various heterocyclic compounds containing an imidazoline nitroxide moiety.
Heterocyclization Reaction ofα-Imino Carbonyl Compounds− Derivatives of 2,5-Dihydro-1H-imidazole Nitroxides
作者:Galina A. Roshchupkina、Natalie V. Pervukhina、Tatjana V. Rybalova、Yuri V. Gatilov、Alexey B. Burdukov、Vladimir A. Reznikov
DOI:10.1002/ejoc.200300212
日期:2003.11
α-Imino carbonyl compounds − derivatives of 3-imidazoline nitroxides − were found to undergo heterocyclizationreactions, yielding oxazole and 1,3,5-triazine derivatives. The most probable course of the reaction was suggested by the radioactive label method. The structures of the heterocycles synthesized were verified by X-ray analysis of the mixed-ligand complexes with copper hexafluoroacetylacetonate