The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols
Kinetika reakcija 6-supstitutisanih nikotinskih kiselina i nekih p-supstituisanih benzoevih kiselina sa diazodifenilmetanom u različitim alkoholima
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Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Rate constants have been determined for the reactions of diazodiphenylmethane with a number of 6-substituted nicotinic acids and p-substituted benzoic acids in twelve alcohols. A comparative study was used to evaluate and compare the Hammett ρ values and solvent effects. Multiple correlations of the log k values for the reactions of 6-substituted nicotinic acids and p-substituted benzoic acids in 12 alcohols with groups of suitable solvent parameters are very successful. The transmission of electronic effects through the pyridine ring system in compared with that in benzene.
Određene su konstante brzine reakcije esterifikacije 6-supstituisanih nikotinskih kiselina sa supstituentima H, Cl, OH i CH3 kao i konstante brzine za 4-CH3 benzoevu kiselinu sa DDM na 30 ˚C u dvanaest alkoholnih rastvarača, korišćenjem poznate UV-spektrofotometrijske metode.Na osnovu dobijenih konstanti brzina reakcija nikotinskih kiselina i p-supstituisanih benzoevih kiselina, korišćenjem Hammett-ove jednačine određene su reakcione konstante ρ za obe serije jedinjenja i diskutovan je način prenošenja efekata supstituenata kroz piridinov i benzolov prsten. Višestrukom regresionom analizom uspostavljena je zadovoljavajuća zavisnost konstanti brzina reakcija kao i reakcione konstante ρ sa parametrima rastvarača kao što su: Kirkwood-ova funkcija relativne permitivnosti f(ε), Taftova σ* konstanta za alkil grupe alkohola i nγH koji predstavlja broj γ-vodonikovih atoma u alkoholu.
Ključne reči:
6-substituted nicotinic acids / protic solvents / solvent parameters / Hammett correlationIzvor:
Journal of the Serbian Chemical Society, 2000, 65, 7, 481-490Izdavač:
- Serbian Chemical Society, Belgrade
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Drmanić, Saša AU - Jovanović, Bratislav Ž. AU - Misić-Vuković, Milica PY - 2000 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/291 AB - Rate constants have been determined for the reactions of diazodiphenylmethane with a number of 6-substituted nicotinic acids and p-substituted benzoic acids in twelve alcohols. A comparative study was used to evaluate and compare the Hammett ρ values and solvent effects. Multiple correlations of the log k values for the reactions of 6-substituted nicotinic acids and p-substituted benzoic acids in 12 alcohols with groups of suitable solvent parameters are very successful. The transmission of electronic effects through the pyridine ring system in compared with that in benzene. AB - Određene su konstante brzine reakcije esterifikacije 6-supstituisanih nikotinskih kiselina sa supstituentima H, Cl, OH i CH3 kao i konstante brzine za 4-CH3 benzoevu kiselinu sa DDM na 30 ˚C u dvanaest alkoholnih rastvarača, korišćenjem poznate UV-spektrofotometrijske metode.Na osnovu dobijenih konstanti brzina reakcija nikotinskih kiselina i p-supstituisanih benzoevih kiselina, korišćenjem Hammett-ove jednačine određene su reakcione konstante ρ za obe serije jedinjenja i diskutovan je način prenošenja efekata supstituenata kroz piridinov i benzolov prsten. Višestrukom regresionom analizom uspostavljena je zadovoljavajuća zavisnost konstanti brzina reakcija kao i reakcione konstante ρ sa parametrima rastvarača kao što su: Kirkwood-ova funkcija relativne permitivnosti f(ε), Taftova σ* konstanta za alkil grupe alkohola i nγH koji predstavlja broj γ-vodonikovih atoma u alkoholu. PB - Serbian Chemical Society, Belgrade T2 - Journal of the Serbian Chemical Society T1 - The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols T1 - Kinetika reakcija 6-supstitutisanih nikotinskih kiselina i nekih p-supstituisanih benzoevih kiselina sa diazodifenilmetanom u različitim alkoholima EP - 490 IS - 7 SP - 481 VL - 65 UR - https://hdl.handle.net/21.15107/rcub_technorep_291 ER -
@article{ author = "Drmanić, Saša and Jovanović, Bratislav Ž. and Misić-Vuković, Milica", year = "2000", abstract = "Rate constants have been determined for the reactions of diazodiphenylmethane with a number of 6-substituted nicotinic acids and p-substituted benzoic acids in twelve alcohols. A comparative study was used to evaluate and compare the Hammett ρ values and solvent effects. Multiple correlations of the log k values for the reactions of 6-substituted nicotinic acids and p-substituted benzoic acids in 12 alcohols with groups of suitable solvent parameters are very successful. The transmission of electronic effects through the pyridine ring system in compared with that in benzene., Određene su konstante brzine reakcije esterifikacije 6-supstituisanih nikotinskih kiselina sa supstituentima H, Cl, OH i CH3 kao i konstante brzine za 4-CH3 benzoevu kiselinu sa DDM na 30 ˚C u dvanaest alkoholnih rastvarača, korišćenjem poznate UV-spektrofotometrijske metode.Na osnovu dobijenih konstanti brzina reakcija nikotinskih kiselina i p-supstituisanih benzoevih kiselina, korišćenjem Hammett-ove jednačine određene su reakcione konstante ρ za obe serije jedinjenja i diskutovan je način prenošenja efekata supstituenata kroz piridinov i benzolov prsten. Višestrukom regresionom analizom uspostavljena je zadovoljavajuća zavisnost konstanti brzina reakcija kao i reakcione konstante ρ sa parametrima rastvarača kao što su: Kirkwood-ova funkcija relativne permitivnosti f(ε), Taftova σ* konstanta za alkil grupe alkohola i nγH koji predstavlja broj γ-vodonikovih atoma u alkoholu.", publisher = "Serbian Chemical Society, Belgrade", journal = "Journal of the Serbian Chemical Society", title = "The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols, Kinetika reakcija 6-supstitutisanih nikotinskih kiselina i nekih p-supstituisanih benzoevih kiselina sa diazodifenilmetanom u različitim alkoholima", pages = "490-481", number = "7", volume = "65", url = "https://hdl.handle.net/21.15107/rcub_technorep_291" }
Drmanić, S., Jovanović, B. Ž.,& Misić-Vuković, M.. (2000). The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols. in Journal of the Serbian Chemical Society Serbian Chemical Society, Belgrade., 65(7), 481-490. https://hdl.handle.net/21.15107/rcub_technorep_291
Drmanić S, Jovanović BŽ, Misić-Vuković M. The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols. in Journal of the Serbian Chemical Society. 2000;65(7):481-490. https://hdl.handle.net/21.15107/rcub_technorep_291 .
Drmanić, Saša, Jovanović, Bratislav Ž., Misić-Vuković, Milica, "The kinetics of the reaction of 6-substituted nicotinic acids and some p-substituted benzoic acids with diazodiphenylmethane in various alcohols" in Journal of the Serbian Chemical Society, 65, no. 7 (2000):481-490, https://hdl.handle.net/21.15107/rcub_technorep_291 .