Mechanismus kysele katalyzovaného rozkladu 3-alkyl-1,3-difenyltriazenů trichloroctovou kyselinou v hexanu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F04%3A00001559" target="_blank" >RIV/00216275:25310/04:00001559 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanism of Acid Catalysed Decomposition of 3-Alkyl-1,3-diphenyltriazenes by Trichloroacetic Acid in Hexane

Popis výsledku v původním jazyce

Eight 3-alkyl-1,3-diaryltriazenes with substituents methyl, ethyl, propyl, butyl, pentyl, isopropyl, sec-butyl and cyclohexyl have been synthesised and their rate constants of decomposition by trichloroacetic acid (0.01 - 0.25 mol dm-3) in hexane mediumat 25 oC measured. The kinetic model and mechanism thereof was suggested with the use modelling of the dependences of kobs on the concentration of trichloracetic acid. On the basis of this kinetic model and the interpretation of solvent effects, the reaction mechanism has been suggested according to which the triazene reacts with monomer and obviously also opens the dimer of trichloroacetic acid in a single reaction step. At the same time, a non-reactive associate between N1 nitrogen of triazene and twomolecules of trichloroacetic acid is formed in the reaction mixture. The equilibrium and rate constants depend on the addition of trichloroacetic acid as the co-solvent.

Název v anglickém jazyce

Mechanism of Acid Catalysed Decomposition of 3-Alkyl-1,3-diphenyltriazenes by Trichloroacetic Acid in Hexane

Popis výsledku anglicky

Eight 3-alkyl-1,3-diaryltriazenes with substituents methyl, ethyl, propyl, butyl, pentyl, isopropyl, sec-butyl and cyclohexyl have been synthesised and their rate constants of decomposition by trichloroacetic acid (0.01 - 0.25 mol dm-3) in hexane mediumat 25 oC measured. The kinetic model and mechanism thereof was suggested with the use modelling of the dependences of kobs on the concentration of trichloracetic acid. On the basis of this kinetic model and the interpretation of solvent effects, the reaction mechanism has been suggested according to which the triazene reacts with monomer and obviously also opens the dimer of trichloroacetic acid in a single reaction step. At the same time, a non-reactive associate between N1 nitrogen of triazene and twomolecules of trichloroacetic acid is formed in the reaction mixture. The equilibrium and rate constants depend on the addition of trichloroacetic acid as the co-solvent.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal pf Physical Organic Chemistry

ISSN

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e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

N

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

343-349

Kód UT WoS článku

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EID výsledku v databázi Scopus

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