Synthesis of aliphatic 1,2-bishydroxylamines from 1,3- dihydroxyimidazolidines.
摘要:
Reduction of 1-hydroxy-3-imidazoline-3-oxides with NaBH4 gives 1,3-dihydroxyimidazolidines. The latter on subsequent treatment with NH2OH.HCl in EtOH or in hydrochloric acid afford 1,2-bishydroxylamines. An X-ray study of 1,2-bishydroxylaminocycloalkanes has shown them to be cis-configurated.
Synthesis and oxidation of 1-hydroxy-3(2)-imidazoline-derived enaminones
作者:V. A. Reznikov、L. B. Volodarsky
DOI:10.1007/bf01431810
日期:1996.7
1-hydroxy-3-imidazoline and 3-imidazoline 3-oxide derivatives with esters in the presence of LDA gives enaminones, derivatives of imidazolidine. Oxidation of these compounds with MnO2 leads to4H-imidazoleN-oxides, oxidative dirnerization products, or stablenitroxylradicals, depending on the structure of the initial compound.