A novel method for the nitration of simple aromatic compounds

Smith, Keith, Musson, Adam and DeBoos, Gareth A. 1998. A novel method for the nitration of simple aromatic compounds. Journal of Organic Chemistry 63 (23) , pp. 8448-8454. 10.1021/jo981557o

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Abstract

Simple aromatic compounds such as benzene, alkylbenzenes, halogenobenzenes, and some disubstituted benzenes are nitrated in excellent yields with high regioselectivity under mild conditions using zeolite β as a catalyst and a stoichiometric quantity of nitric acid and acetic anhydride. The zeolite can be recycled, and the only byproduct is acetic acid, which can be separated easily from the nitration product by distillation; the process is inexpensive and represents an attractive method for the clean synthesis of a range of nitroaromatic compounds. For example, nitration of toluene gives a quantitative yield of mononitrotoluenes, of which 79% is 4-nitrotoluene; fluorobenzene gives a quantitative yield of mononitro compounds, of which 94% is 4-nitrofluorobenzene; and 2-fluorotoluene gives a 96% yield of mononitro products, of which 90% is the 5-nitro isomer and 10% is the 4-nitro isomer.

Item Type:	Article
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	American Chemical Society
ISSN:	0022-3263
Last Modified:	04 Jun 2017 02:57
URI:	https://orca.cardiff.ac.uk/id/eprint/14434

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