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Titolo:
EPOXIDATION OF ALLYL ALCOHOL TO GLYCIDOL USING TITANIUM SILICALITE TS-1 - EFFECT OF THE REACTION CONDITIONS AND CATALYST ACIDITY
Autore:
HUTCHINGS GJ; LEE DF; MINIHAN AR;
Indirizzi:
UNIV LIVERPOOL,DEPT CHEM,LEVERHULME CTR INNOVAT CATALYSIS,POB 147 LIVERPOOL L69 3BX MERSEYSIDE ENGLAND UNILEVER RES,PORT SUNLIGHT LAB WIRRAL L63 3JW MERSEYSIDE ENGLAND
Titolo Testata:
Catalysis letters
fascicolo: 1-2, volume: 39, anno: 1996,
pagine: 83 - 90
SICI:
1011-372X(1996)39:1-2<83:EOAATG>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDROGEN-PEROXIDE;
Keywords:
TITANIUM SILICALITE TS-1; HYDROGEN PEROXIDE AS OXIDANT; ALLYL ALCOHOL EPOXIDATION; GLYCIDOL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
G.J. Hutchings et al., "EPOXIDATION OF ALLYL ALCOHOL TO GLYCIDOL USING TITANIUM SILICALITE TS-1 - EFFECT OF THE REACTION CONDITIONS AND CATALYST ACIDITY", Catalysis letters, 39(1-2), 1996, pp. 83-90

Abstract

The epoxidation of allyl alcohol to glycidol using the titanium silicalite TS-1 with hydrogen peroxide as the oxidant is described and discussed in detail. The reaction conditions (alcohol, solvent, temperature) required to obtain 100% selectivity to glycidol are described and this selectivity has been observed at conversions of allyl alcohol of up to 20%. Addition of excess hydrogen peroxide enhances conversion butdoes not appear to affect selectivity to glycidol deleteriously, whereas addition of hydrogen peroxide over an extended time period is not particularly beneficial. The major side reactions are the oxidation ofthe alcohol solvent and the ring opening solvolysis of the glycidol that leads to the formation of alkoxy diols. Base treatment of the TS-1using sodium azide enhances the glycidol selectivity, whereas the incorporation of Bronsted acid sites by addition of aluminium into the framework structure of TS-1 enhances the selectivity to the products of solvolysis ring opening reactions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:30:24