Mechanism of 2,4-dinitrotoluene hydrogenation over Pd/C

Clicks: 268
ID: 272680
1995
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Abstract
Hydrogenation of 2,4-dinitrotoluene (DNT) to 2,4-diaminotoluene (DAT) has been carried out over a 5% Pd/C catalyst. Gas chromatography and liquid chromatography have been used to detect the reaction intermediates. 4-Hydroxylamine,2-nitrotoluene (4HA2NT) is the main reaction intermediate. The two amino-nitro compounds 4-amino,2-nitrotoluene (4A2NT) and 2-amino,4-nitrotoluene (2A4NT) are the other relevant intermediates found. 4HA2NT decomposes by exposure to air and in the GC injector thus complicating the analysis of the reaction mixture. A simple procedure has been developed to perform the GC analysis without interference of the hydroxylamine. A kinetic study has been also carried out and a reaction pathway has been proposed. Intermediates are formed from DNT through three parallel reactions. They are then hydrogenated to the final product DAT by a series of consecutive reactions.
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Authors G. Neri,M.G. Musolino,C. Milone,A.M. Visco,A. Di Mario;G. Neri;M.G. Musolino;C. Milone;A.M. Visco;A. Di Mario;
Journal journal of molecular catalysis a: chemical
Year 1995
DOI
10.1016/1381-1169(94)00002-6
URL
https://sciprofiles.com/publication/view/8aef7469adfbf0b95fb8adaeca7a230c
Keywords
palladium hydrogenation 4-dinitrotoluene

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