Efficient hydroalkoxylation of alkenes to generate octane-boosting ethers using recyclable metal triflates and highly active metal triflate/ Brønsted acid-assisted catalysts

Williams, DBG; Sibiya, MS; Van Heerden, PS

Efficient hydroalkoxylation of alkenes to generate octane-boosting ethers using recyclable metal triflates and highly active metal triflate/ Brønsted acid-assisted catalysts

Williams, DBG

Sibiya, MS Van Heerden, PS

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Publication Type:: Journal Article
Citation:: Fuel Processing Technology, 2012, 94 (1), pp. 75 - 79
Issue Date:: 2012-02-01

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Field	Value	Language
dc.contributor.author	Williams, DBG https://orcid.org/0000-0002-3703-6301	en_US
dc.contributor.author	Sibiya, MS	en_US
dc.contributor.author	Van Heerden, PS	en_US
dc.date.issued	2012-02-01	en_US
dc.identifier.citation	Fuel Processing Technology, 2012, 94 (1), pp. 75 - 79	en_US
dc.identifier.issn	0378-3820	en_US
dc.identifier.uri	http://hdl.handle.net/10453/115035
dc.description.abstract	gem-Disubstituted alkenes are directly and readily etherified with alcohols using Al(OTf) 3 and Zr(OTf) 4 as recyclable Lewis acid catalysts. In contrast, primary or secondary alkene analogues were inert under these conditions, enabling excellent chemoselectivity. Lanthanide triflates are inactive as catalysts for such reactions, as is phosphoric acid. But a combination of these two otherwise inactive entities led to an 'assisted acidity' scenario that saw significant unmatched catalyst activity. All catalysts of this study are recyclable a number of times without loss of activity. © 2011 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Fuel Processing Technology	en_US
dc.relation.isbasedon	10.1016/j.fuproc.2011.10.024	en_US
dc.subject.classification	Energy	en_US
dc.title	Efficient hydroalkoxylation of alkenes to generate octane-boosting ethers using recyclable metal triflates and highly active metal triflate/ Brønsted acid-assisted catalysts	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	94	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	94	en_US

Abstract:

gem-Disubstituted alkenes are directly and readily etherified with alcohols using Al(OTf) 3 and Zr(OTf) 4 as recyclable Lewis acid catalysts. In contrast, primary or secondary alkene analogues were inert under these conditions, enabling excellent chemoselectivity. Lanthanide triflates are inactive as catalysts for such reactions, as is phosphoric acid. But a combination of these two otherwise inactive entities led to an 'assisted acidity' scenario that saw significant unmatched catalyst activity. All catalysts of this study are recyclable a number of times without loss of activity. © 2011 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/115035