Pregled bibliografske jedinice broj: 296293
Separation of Enantiomers and Barriers to Reversible Ring Opening of Chiral 2-H Chromenes
Separation of Enantiomers and Barriers to Reversible Ring Opening of Chiral 2-H Chromenes // The eight International Course and Conference on Interfaces among Matematics, Cemistry and Computer Sciences
Rovinj, Hrvatska, 1993. (poster, nije recenziran, sažetak, znanstveni)
CROSBI ID: 296293 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Separation of Enantiomers and Barriers to Reversible Ring Opening of Chiral 2-H Chromenes
Autori
Lončar, Linda ; Mintas, Mladen ; Trötsch, Thomas ; Mannschreck, Albrecht
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Skup
The eight International Course and Conference on Interfaces among Matematics, Cemistry and Computer Sciences
Mjesto i datum
Rovinj, Hrvatska, 21.06.1993. - 25.06.1993
Vrsta sudjelovanja
Poster
Vrsta recenzije
Nije recenziran
Ključne riječi
kiralni 2-H kromeni
(chromenes)
Sažetak
Separation or enrichment of enantiomers of the novel chromenes (l)-(5) were accomplished by liquid chromatography on triacetyl– or tribenzoylcellulose. The barriers to reversible electrocyclic ring opening were determined by thermal racemization of the separated enantiomers. Gibbs energies of activation, ∆ G≠ , for interconversion of enantiomers of (l), (3) and (4) amount to l06-l23 kJ/mol. Photochemically induced interconversion of preparatively isolated enentiomers, that is, photoracemization, was also performed for (l).
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
Profili:
Mladen Mintas
(autor)
