Oxidation of adamantanone and norcamphor over tin containing mesoporous molecular sieves

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Oxidation of adamantanone and norcamphor over tin containing mesoporous molecular sieves

Popis výsledku v původním jazyce

Oxidation of adamantanone and norcamphor in Beyer-Villiger reaction, by hydrogen peroxide as oxidating agent using mesoporous molecular sieves as catalysts with tin in structure, was investigated in a liquid phase. Different procedures for synthesis of catalysts to study the influence of synthesis procedures and the dependence of tin content were used. It was shown that all types of catalysts, both (Sn)MCM-41 exhibited conversions of adamantanone between 42-90% and of norcamphor between 32-73% while (Sn)MCM-48 exhibited conversions of adamantanone between 51-100% and conversions of norcamphor between 53-86%. In all reactions the selectivities to desired lactones were almost 100%. No direct relationship has been found between the conversions of individual ketones and bulk concentrations of tin in both (Sn)MCM-41 and (Sn)MCM-48. The Lewis sites accessible for pyridine measured by FTIR spectroscopy do not probably participate in Baeyer-Villiger reaction to the same extent.

Název v anglickém jazyce

Oxidation of adamantanone and norcamphor over tin containing mesoporous molecular sieves

Popis výsledku anglicky

Oxidation of adamantanone and norcamphor in Beyer-Villiger reaction, by hydrogen peroxide as oxidating agent using mesoporous molecular sieves as catalysts with tin in structure, was investigated in a liquid phase. Different procedures for synthesis of catalysts to study the influence of synthesis procedures and the dependence of tin content were used. It was shown that all types of catalysts, both (Sn)MCM-41 exhibited conversions of adamantanone between 42-90% and of norcamphor between 32-73% while (Sn)MCM-48 exhibited conversions of adamantanone between 51-100% and conversions of norcamphor between 53-86%. In all reactions the selectivities to desired lactones were almost 100%. No direct relationship has been found between the conversions of individual ketones and bulk concentrations of tin in both (Sn)MCM-41 and (Sn)MCM-48. The Lewis sites accessible for pyridine measured by FTIR spectroscopy do not probably participate in Baeyer-Villiger reaction to the same extent.

Druh

D - Stať ve sborníku

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název statě ve sborníku

Studies in Surface Science and Catalysis

ISBN

0-444-52082-1

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Prague

Datum konání akce

23. 8. 2005

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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