Baeyer-Villiger Oxidation of Cyclic Ketones by Using Tin-Silica Pillared Catalysts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00477801" target="_blank" >RIV/61388955:_____/17:00477801 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/cctc.201700162" target="_blank" >http://dx.doi.org/10.1002/cctc.201700162</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cctc.201700162" target="_blank" >10.1002/cctc.201700162</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Baeyer-Villiger Oxidation of Cyclic Ketones by Using Tin-Silica Pillared Catalysts

Popis výsledku v původním jazyce

The Baeyer-Villiger oxidation is an important transformation of ketones into esters and particularly for cyclic ketones to lactones. We report here preparation and catalytic activity of layered Sn-silicate catalysts and mesoporous ordered silica catalysts in this reaction. Sn was introduced by using so-called tinsilica pillaring or by impregnation with a mixture of tetraethylorthosilicate and tin(IV) alkoxide. The prepared catalysts were characterized by XRD, N-2 physisorption, SEM, UV/Vis, and inductively coupled plasma optical emission spectroscopy (ICP-OES) techniques and the catalysts were studied in the Baeyer-Villiger oxidation of cyclopentanone, norcamphor, and 2-adamantanone with aqueous hydrogen peroxide. Norcamphor and 2-adamantanone were oxidized easily with selectivity up to 99 %. Sn-MS and IPC-1-SnPI materials exhibited the highest conversions (e.g., norcamphor: Sn-MS 37%, IPC-1-SnPI 36% after 8 h vs. Sn-MCM-41 22%). On the other hand, oxidation of cyclopentanone suffered from product hydrolysis to the corresponding 4-hydroxybutanoic acid.

Název v anglickém jazyce

Baeyer-Villiger Oxidation of Cyclic Ketones by Using Tin-Silica Pillared Catalysts

Popis výsledku anglicky

The Baeyer-Villiger oxidation is an important transformation of ketones into esters and particularly for cyclic ketones to lactones. We report here preparation and catalytic activity of layered Sn-silicate catalysts and mesoporous ordered silica catalysts in this reaction. Sn was introduced by using so-called tinsilica pillaring or by impregnation with a mixture of tetraethylorthosilicate and tin(IV) alkoxide. The prepared catalysts were characterized by XRD, N-2 physisorption, SEM, UV/Vis, and inductively coupled plasma optical emission spectroscopy (ICP-OES) techniques and the catalysts were studied in the Baeyer-Villiger oxidation of cyclopentanone, norcamphor, and 2-adamantanone with aqueous hydrogen peroxide. Norcamphor and 2-adamantanone were oxidized easily with selectivity up to 99 %. Sn-MS and IPC-1-SnPI materials exhibited the highest conversions (e.g., norcamphor: Sn-MS 37%, IPC-1-SnPI 36% after 8 h vs. Sn-MCM-41 22%). On the other hand, oxidation of cyclopentanone suffered from product hydrolysis to the corresponding 4-hydroxybutanoic acid.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GBP106%2F12%2FG015" target="_blank" >GBP106/12/G015: Vývoj nových nanoporézních adsorbentů a katalyzátorů</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

ChemCatChem

ISSN

1867-3880

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

3063-3072

Kód UT WoS článku

000407221200022

EID výsledku v databázi Scopus

2-s2.0-85021362004