Insight into the catalytic activity of alloxazinium and isoalloxazinium salts in the oxidations of sulfides and amines with hydrogen peroxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43893696" target="_blank" >RIV/60461373:22310/12:43893696 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.molcata.2012.07.012" target="_blank" >http://dx.doi.org/10.1016/j.molcata.2012.07.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molcata.2012.07.012" target="_blank" >10.1016/j.molcata.2012.07.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Insight into the catalytic activity of alloxazinium and isoalloxazinium salts in the oxidations of sulfides and amines with hydrogen peroxide

Popis výsledku v původním jazyce

In addition to the already known organocatalysts dihydro-5-ethylalloxazines 1-H2 and 5-ethylisoalloxazinium salts 2, other derivatives of alloxazines and isoalloxazines (flavins) have been shown to catalyze the oxidation of sulfides to sulfoxides with hydrogen peroxide with high efficiency. In the alloxazine series, the C4a-methoxy adduct 1-OCH3 or 5-ethylalloxazinium salts 1 can also be used, but the latter only in the presence of a base, as a co-catalyst. In the isoalloxazine series, the C4a-hydroxy adduct 2-OH or dihydroform 2-H2 can also be utilized but only in the presence of the catalytic amount of an acid. On the other hand, only alloxazine derivatives, i.e. dihydroalloxazines 1-H2 and their methoxy adducts 1-OCH3 or alloxazinium salts 1 can beused as catalysts for the oxidation of tertiary amines, as the catalytic activity of isoalloxazinium salts 1 and their derivatives is inhibited under basic conditions. The different reactivity of the alloxazinium and isoalloxazinium catal

Název v anglickém jazyce

Insight into the catalytic activity of alloxazinium and isoalloxazinium salts in the oxidations of sulfides and amines with hydrogen peroxide

Popis výsledku anglicky

In addition to the already known organocatalysts dihydro-5-ethylalloxazines 1-H2 and 5-ethylisoalloxazinium salts 2, other derivatives of alloxazines and isoalloxazines (flavins) have been shown to catalyze the oxidation of sulfides to sulfoxides with hydrogen peroxide with high efficiency. In the alloxazine series, the C4a-methoxy adduct 1-OCH3 or 5-ethylalloxazinium salts 1 can also be used, but the latter only in the presence of a base, as a co-catalyst. In the isoalloxazine series, the C4a-hydroxy adduct 2-OH or dihydroform 2-H2 can also be utilized but only in the presence of the catalytic amount of an acid. On the other hand, only alloxazine derivatives, i.e. dihydroalloxazines 1-H2 and their methoxy adducts 1-OCH3 or alloxazinium salts 1 can beused as catalysts for the oxidation of tertiary amines, as the catalytic activity of isoalloxazinium salts 1 and their derivatives is inhibited under basic conditions. The different reactivity of the alloxazinium and isoalloxazinium catal

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

<a href="/cs/project/GAP207%2F12%2F0447" target="_blank" >GAP207/12/0447: Organokatalytické stereoselektivní oxidace s využitím heterocyklických hydroperoxidů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal Of Molecular Catalysis A-Chemical

ISSN

1381-1169

e-ISSN

—

Svazek periodika

363

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

9

Strana od-do

362-370

Kód UT WoS článku

000309443400047

EID výsledku v databázi Scopus

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