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Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives

Stanko Borčić ; Department of Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
Krešìmir Humski ; Department of Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
Olga Kronja ; Department of Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
Ivica Malnar ; Department of Chemistry, Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia

Puni tekst: engleski, pdf (19 MB) str. 1347-1359 preuzimanja: 123* citiraj
APA 6th Edition
Borčić, S., Humski, K., Kronja, O. i Malnar, I. (1996). Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives. Croatica Chemica Acta, 69 (4), 1347-1359. Preuzeto s https://hrcak.srce.hr/135974
MLA 8th Edition
Borčić, Stanko, et al. "Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives." Croatica Chemica Acta, vol. 69, br. 4, 1996, str. 1347-1359. https://hrcak.srce.hr/135974. Citirano 07.03.2021.
Chicago 17th Edition
Borčić, Stanko, Krešìmir Humski, Olga Kronja i Ivica Malnar. "Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives." Croatica Chemica Acta 69, br. 4 (1996): 1347-1359. https://hrcak.srce.hr/135974
Harvard
Borčić, S., et al. (1996). 'Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives', Croatica Chemica Acta, 69(4), str. 1347-1359. Preuzeto s: https://hrcak.srce.hr/135974 (Datum pristupa: 07.03.2021.)
Vancouver
Borčić S, Humski K, Kronja O, Malnar I. Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives. Croatica Chemica Acta [Internet]. 1996 [pristupljeno 07.03.2021.];69(4):1347-1359. Dostupno na: https://hrcak.srce.hr/135974
IEEE
S. Borčić, K. Humski, O. Kronja i I. Malnar, "Extended π-Participation in Biomimetic Cyclization of Squalene Derivatives", Croatica Chemica Acta, vol.69, br. 4, str. 1347-1359, 1996. [Online]. Dostupno na: https://hrcak.srce.hr/135974. [Citirano: 07.03.2021.]

Sažetak
Chlorides 4 (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 aqueous ethanol Op = 95% and 80%) and in aqueous 2,2,2-trifluoroethanol (w = 97%). Hammett p+ values obtained are -1.86, —1.81 and —1.56, respectively, suggesting concerted cyclization of at least two double bonds in the rate determining step.

Hrčak ID: 135974

URI
https://hrcak.srce.hr/135974

Posjeta: 235 *