… the catalytic hydrogenation of nitrobenzene to 4-aminophenol in CH 3 CN–H 2 O–CF 3 COOH as a reusable solvent system. Hydrogenation of nitrobenzene catalyzed …
G Quartarone, L Ronchin, A Tosetto…
Index: Quartarone, Giuseppe; Ronchin, Lucio; Tosetto, Alice; Vavasori, Andrea Applied Catalysis A: General, 2014 , vol. 475, p. 169 - 178
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Citation Number: 9
Abstract
Abstract The preparation of 4-aminophenol via hydrogenation of nitrobenzene in a single liquid phase has been carried in the presence of different precious metal catalysts. The liquid phase is composed of CH 3 CN–H 2 O–CF 3 COOH, which can be easily distilled at low temperature, thus avoiding work-up operation. The yield of 4-aminophenol is in the range 45% and in the presence of sulfolane as promoter reaches almost 50%. The best ...
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