Cinchonine-based organosilica materials as heterogeneous catalysts of enantioselective alkene dihydroxylation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F21%3A00009033" target="_blank" >RIV/46747885:24220/21:00009033 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/21:00548508 RIV/46747885:24620/21:00009033 RIV/60461373:22310/21:43922062

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0021951721004255" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0021951721004255</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcat.2021.10.015" target="_blank" >10.1016/j.jcat.2021.10.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cinchonine-based organosilica materials as heterogeneous catalysts of enantioselective alkene dihydroxylation

Popis výsledku v původním jazyce

The bridged bis(triethoxysilane) possessing the bis-cinchonine-phthalazine bridging organic unit was synthesized and then subjected to the sol–gel process leading to two hybrid organosilica materials. Both solid materials were characterized by 13C and 29Si CP/MAS NMR, FTIR, SEM, TEM, TGA and gas sorption analyses, and were successfully used as heterogenized ligands in catalysis of enantioselective Sharpless alkene dihydroxylation. The nanostructured material exhibited higher enantioselectivities than the bulk material. For some alkene substrates, the observed enantioselectivities were comparable to the results of homogeneous catalysis. Materials recycling experiments revealed that the nanostructured material can be used at least five times without loss of enantioselectivity.

Název v anglickém jazyce

Cinchonine-based organosilica materials as heterogeneous catalysts of enantioselective alkene dihydroxylation

Popis výsledku anglicky

The bridged bis(triethoxysilane) possessing the bis-cinchonine-phthalazine bridging organic unit was synthesized and then subjected to the sol–gel process leading to two hybrid organosilica materials. Both solid materials were characterized by 13C and 29Si CP/MAS NMR, FTIR, SEM, TEM, TGA and gas sorption analyses, and were successfully used as heterogenized ligands in catalysis of enantioselective Sharpless alkene dihydroxylation. The nanostructured material exhibited higher enantioselectivities than the bulk material. For some alkene substrates, the observed enantioselectivities were comparable to the results of homogeneous catalysis. Materials recycling experiments revealed that the nanostructured material can be used at least five times without loss of enantioselectivity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Catalysis

ISSN

0021-9517

e-ISSN

—

Svazek periodika

404

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

493-500

Kód UT WoS článku

000720348800004

EID výsledku v databázi Scopus

2-s2.0-85118825340