Synthesis p. 1049 - 1055 (1997)
Update date:2022-08-04
Topics:
Kálai, Tamás
Jeko, József
Szabó, Zoltán
Párkányi, László
Hideg, Kálmán
Various new 2-substituted 4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-1-yloxyl 3-oxide mono- 1b, 7, 13a,b, 14, 15, 16, 17, 22 and biradicals 8, 9 were prepared. The nitronyl nitroxide functions were selectively reduced by Fe/HOAc to 1-hydroxyimidazoline derivatives 3b, 11, 21. The reductions by Zn/HCl led to imidazolines 4, 12. The nitronyl nitroxide functions remained inert when the 2-phenyl compound was nitrated by H2SO4/HNO3 to give nitrophenyl nitronyl nitroxide derivatives 13a,b, 14.
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Doi:10.1016/S0040-4039(97)10163-0
(1997)Doi:10.1007/BF02290758
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(1983)Doi:10.1246/bcsj.70.2781
(1997)Doi:10.1002/cber.19971301113
(1997)
