The possibility of obtaining paracetamol (4-acetamidophenol) and oxaphenamide (4-hydroxyphenylsalicylamide) by means of a
single-stage reductive acylation of 4-nitrophenol on palladium catalysts has been studied. Using this single-stage reaction
under mild conditions (organic solvents; temperature, 45°C; hydrogen pressure, 1 bar) the target compounds were obtained with
a yield of 70–90% for paracetamol and 41–63% for oxaphenamide. Metal — polymer catalyst systems have proved to be more active
and selective than the traditional heterogeneous Pd/C catalysts.
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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 39, No. 12, pp. 37–39, December, 2005.