An unusual reduction route of 2,4,6-TRINITROBENZOIC ACID (cas 129-66-8) under conditions of aqueous-phase hydrogenation over Pd/Sibunit catalyst

Add time:09/29/2019    Source:infona.pl

For the first time it was established that the catalytic hydrogenation of 2,4,6-TRINITROBENZOIC ACID (cas 129-66-8) to 1,3,5-triaminobenzene can proceed via the formation of aromatic hydroxyamines and cyclohexane-1,3,5-trione trioxime. As a result of aqueous-phase hydrogenation of sodium salt of 2,4,6-trinitrobenzoic acid in the presence of 5%Pd/Sibunit catalyst at a temperature of 323 K and pressure of 0.5 MPa, a trioxime in high yield (about 70 %) was obtained. Due to high selectivity to cyclohexane-1,3,5-trione trioxime the catalytic hydrogenation of sodium salt of 2,4,6-trinitrobenzoic acid can be considered as a new method for its synthesis.

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