caa a22 4500 467950717 CHVBK 20180405193742.0 cr unu---uuuuu 170328e20041101xx s 000 0 eng 10.1007/s10593-005-0071-1 doi (NATIONALLICENCE)springer-10.1007/s10593-005-0071-1 (NATIONALLICENCE)springer-10.1007/PL00021794 Reactions of 5-diazoimidazoles with steroid hydrazones [Elektronische Daten] [E. Sadchikova, E. Kureneva, E. Shtokareva, I. Selezneva] The reaction of 5-diazoimidazoles with steroid hydrazones was studied. The structure of the steroid derivative was found to have a significant effect on the direction of the nitrogen transfer in the unstable intermediate tetrazene. The presence of a labile proton in the reaction mixture permits stabilization of one of the tetrazene forms such that only direction was found for the nitrogen transfer in all the reactions studied, leading to imidazole azides and iminosteroid derivatives. Springer Science+Business Media, Inc., 2004 5-azidoimidazoles nationallicence 3-hydrazono-5α-hydrazono-5α-androstan-17β-ol nationallicence 17-hydrazonoestra-1,3,5(10)-trien-3-ol nationallicence 5-diazoimidazoles nationallicence 3-imino-5α-androstan-17β-ol nationallicence 17-iminoestra-1,3,5(10)-trien-3-ol nationallicence tetrazenes nationallicence Sadchikova E. Urals State Technical University, 620002, Yekaterinburg, Russia aut Kureneva E. Urals State Technical University, 620002, Yekaterinburg, Russia aut Shtokareva E. Urals State Technical University, 620002, Yekaterinburg, Russia aut Selezneva I. Urals State Technical University, 620002, Yekaterinburg, Russia aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Consultants Bureau 40/11(2004-11-01), 1470-1476 0009-3122 40:11<1470 2004 40 10593 https://doi.org/10.1007/s10593-005-0071-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10593-005-0071-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sadchikova E. Urals State Technical University, 620002, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Kureneva E. Urals State Technical University, 620002, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Shtokareva E. Urals State Technical University, 620002, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Selezneva I. Urals State Technical University, 620002, Yekaterinburg, Russia aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Consultants Bureau 40/11(2004-11-01), 1470-1476 0009-3122 40:11<1470 2004 40 10593 NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00021794 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer