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Kinetika reakcije 5-supstituisanih orotinskih kiselina sa dizaodifenilmetanom

dc.creatorJovanović, Bratislav Ž.
dc.creatorAssaleh, Fathi H.
dc.creatorMarinković, Aleksandar
dc.date.accessioned2021-03-10T10:13:28Z
dc.date.available2021-03-10T10:13:28Z
dc.date.issued2004
dc.identifier.issn0352-5139
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/631
dc.description.abstractRate konstants for the reaction of eight 5-substituted orotic acids with diazodiphenylmethane (DDM) in dimethylformamide (DMF) were determined at 30 ºC by the known spectrophotometricmethod. The determined rate constants were correlated with the equations: logk2 = ασ1+βσR+h logk2 = ασ1+βσR+ψν+h to detect the presence and investigate the influence of both electrical and steric substituent effects. The obtained results show that the electrical effect (the localized – field and delocalized – resonance) is predominant and that the steric effect, althought present, is releatively small in this reaction.en
dc.description.abstractKonstante brzine za reakciju osam 5-spstituisanih orotinskih kiselina sa diazodifenilmetanom (DDM) određene su na 30 ºC u dimetilformamidu (DMF) kao rastvarač u, poznatom spektrofotometrijskim metodom. Konstante brzina ispitivanih reakcija korelisane su sledećim jednačinama: logk2 = ασ1+βσR+h logk2 = ασ1+βσR+ψν+h sa ciljem da se odrede efekti supstituenata. Dobijeni rezultati ukazuju na to da su električni efekti supstituenata (induktivni i rezonantni) preovlađujući, a da su sterni efekti supstituenata, iako su prisutni, u odnosu na njih relativno mali.sr
dc.publisherSerbian Chemical Society, Belgrade
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceJournal of the Serbian Chemical Society
dc.subjectorotic acidsen
dc.subjectdiazodiphenylmethaneen
dc.subjectreaction kinetics dimethylformamideen
dc.titleKinetics of the reaction of 5-substituted orotic acids with diazodiphenylmethaneen
dc.titleKinetika reakcije 5-supstituisanih orotinskih kiselina sa dizaodifenilmetanomsr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage953
dc.citation.issue11
dc.citation.other69(11): 949-953
dc.citation.rankM23
dc.citation.spage949
dc.citation.volume69
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/10883/0352-51390411949J.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_technorep_631
dc.identifier.scopus2-s2.0-31644436841
dc.identifier.wos000226120300014
dc.type.versionpublishedVersion


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