Regioselective electrophilic aromatic substitution reactions over reusable zeolites

Smith, Keith and El-Hiti, Gamal A. 2006. Regioselective electrophilic aromatic substitution reactions over reusable zeolites. Current Organic Chemistry 10 (13) , pp. 1603-1625.

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Abstract

Zeolite catalysts can play an important role in the development of greener organic syntheses through their abilities to act as heterogeneous catalysts, support reagents, entrain by-products, avoid aqueous work-ups and enhance product selectivities via shape-selectivity. We have shown that zeolites under modest conditions can have advantages in para-regioselective nitration, alkylation, acylation, methanesulfonylation and halogenation of aromatic compounds. They can also assist in the electrophilic rearrangement of aryloxiranes. The zeolites can be easily removed from reaction mixtures by filtration and regenerated by heating and can then be reused several times to give the same selectivity.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Bentham Science Publishers
ISSN:	1385-2728
Date of First Compliant Deposit:	30 March 2016
Last Modified:	04 May 2023 17:13
URI:	https://orca.cardiff.ac.uk/id/eprint/12718

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