Pregled bibliografske jedinice broj: 209424
Preparative Separations of Enantiomeric Diaziridines by Liquid Chromatography on Triacetylcellulose. Racemizations Monitored by Polarimetry and by 1H NMR
Preparative Separations of Enantiomeric Diaziridines by Liquid Chromatography on Triacetylcellulose. Racemizations Monitored by Polarimetry and by 1H NMR // Chemische Berichte, 112 (1979), 2028-2038 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 209424 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Preparative Separations of Enantiomeric Diaziridines by Liquid Chromatography on Triacetylcellulose. Racemizations Monitored by Polarimetry and by 1H NMR
Autori
Häkli, Harri ; Mintas, Mladen ; Mannschreck, Albrecht
Izvornik
Chemische Berichte (0009-2940) 112
(1979);
2028-2038
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
diaziridines; separation of enantiomers; barriers to nitrogen inversion
Sažetak
Enantiomeric diaziridines have been partially separated by chromatography on triacetylcellulose. (-)-2, (+)-4 and (-)-4 were obtained almost pure, enatiomeric purities (Table 1) being measured by 1H NMR in the presence of optically active additives. The same procedure was tested for monitoring racemizations (Table 2) which were also studied, with higher accuracy, by polarimetry. The barriers to nitrogen inversion, converting the trans- diaziridines 2 and 4 in to cis-intermediates, are compared with known  G* values.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
Profili:
Mladen Mintas
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
