Pregled bibliografske jedinice broj: 944
Extended pi-Participation in Biomimetic Cyclization of Squalene Derivatives
Extended pi-Participation in Biomimetic Cyclization of Squalene Derivatives // Croatica Chemica Acta, 69 (1996), 4; 1347-1359 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 944 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Extended pi-Participation in Biomimetic Cyclization of Squalene Derivatives
Autori
Borčić, Stanko ; Humski, Krešimir ; Kronja, Olga ; Malnar, Ivica
Izvornik
Croatica Chemica Acta (0011-1643) 69
(1996), 4;
1347-1359
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
extended pi-participation; neighboring group participation; concerted reaction; solvolysis; Hammett sigma; rho(+) correlation
Sažetak
Chlorides 1-aryl-1-chloro-5, 9, 14, 18, 22-pentamethyl-5, 9, 13, 17, 21-tricosapentaenes with various phenyl substituents were prepared, and solvolysis rates were measured in 95% (v/v) and 80% (v/v) aqueous ethanol, and in 97% (wt./wt.) aqueous 2, 2, 2-trifluoroethanol. Hammett rho(+)values obtained are -1.86, -1.81 and -1.56, resp., suggesting concerted cyclization of at least two double bonds in the rate determining step.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
