4-Amino-3-Nitrophenol → 3,4-Diaminophenol

Participants

Reaction Steps

10 g of 4-amino-3-nitrophenol in 180 ml of ethanol were hydrogenated under 40 bars pressure at 23° C. temperature with catalytic amound of palladium on carbon. Reaction was performed in an Inox flask for high pressure. After hydrogen uptake was complete, the catalyst was filtered off with suction, washed with methanol and the filtrate was concentred under reduced pressure yielding 8 g of crude 3,4-diaminophenol.

Provenance & Evidence