The Role of the Supporting Electrolyte in the Electrochemical Methoxylation of 4-Methylanisole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021555" target="_blank" >RIV/60461373:22310/09:00021555 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388963:_____/09:00332298

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

The Role of the Supporting Electrolyte in the Electrochemical Methoxylation of 4-Methylanisole

Popis výsledku v původním jazyce

The subject of this paper is the mechanism and kinetics of 4?methylanisole methoxylation in NaClO4?methanol and KF?methanol solutions. The electrochemical behavior of 4-methylanisole, 4-methoxy-benzyl-methyl-ether, and 4-methoxybenzaldehyde dimethylacetale was studied by voltammetry on both stationary and a rotating disk electrode. While NaClO4 classically behaves as an indifferent supporting electrolyte, in methanol solutions KF is electrochemically active in the potential region identical to that of the organic compounds studied. The mechanism of this interaction remains unclear. Methoxylation kinetics of the individual compounds was described in terms of Tafel kinetics. A generalized form of the Tafel equation was utilized to determine the rate-determining step of the methoxylation process in the presence of NaClO4. Batch experiments revealed that the selectivity of methoxylation in NaClO4 electrolytes is low, mainly due to the oligomerization of the methoxylation intermediates and

Název v anglickém jazyce

The Role of the Supporting Electrolyte in the Electrochemical Methoxylation of 4-Methylanisole

Popis výsledku anglicky

The subject of this paper is the mechanism and kinetics of 4?methylanisole methoxylation in NaClO4?methanol and KF?methanol solutions. The electrochemical behavior of 4-methylanisole, 4-methoxy-benzyl-methyl-ether, and 4-methoxybenzaldehyde dimethylacetale was studied by voltammetry on both stationary and a rotating disk electrode. While NaClO4 classically behaves as an indifferent supporting electrolyte, in methanol solutions KF is electrochemically active in the potential region identical to that of the organic compounds studied. The mechanism of this interaction remains unclear. Methoxylation kinetics of the individual compounds was described in terms of Tafel kinetics. A generalized form of the Tafel equation was utilized to determine the rate-determining step of the methoxylation process in the presence of NaClO4. Batch experiments revealed that the selectivity of methoxylation in NaClO4 electrolytes is low, mainly due to the oligomerization of the methoxylation intermediates and

Druh

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

CEP obor

CG - Elektrochemie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Journal of the Electrochemical Society

ISSN

0013-4651

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

156

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000271218900043

EID výsledku v databázi Scopus

—