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Regioselective nitration of 2-and 4-nitrotoluenes over systems comprising nitric acid, an acid anhydride and a zeolite
Journal article   Open access  Peer reviewed

Regioselective nitration of 2-and 4-nitrotoluenes over systems comprising nitric acid, an acid anhydride and a zeolite

Keith Smith, Mohammad Hayal Alotaibi and Gamal A. El-Hiti
ARKIVOC free online journal of organic chemistry, Vol.2014(5), pp.301-309
20/08/2014
DOI: https://doi.org/10.3998/ark.5550190.p008.788

Abstract

Chemistry Chemistry, Organic Physical Sciences Science & Technology
Nitration of 2-nitrotoluene using nitric acid, acetic anhydride and H beta zeolite produces a 97% yield of 2,4-dinitotoluene along with 3% of 2,6-dinitrotoluene. Nitration of 4-nitrotoluene under similar reaction conditions produces 2,4-dinitrotoluene in 89% yield. When chloroacetic anhydride was used instead of acetic anhydride, nitration of 4-nitotoluene produced a quantitative yield (>99%) of 2,4-nitrotoluene.
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https://doi.org/10.3998/ark.5550190.p008.788View
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