Hydrochloric Acid → Phenol, 5-chloro-2-nitro-

Participants

Reaction Steps

192.0 g (1 mol) of 2,4-dichloronitrobenzene, 600 g of water and 273.0 g (2.05 mol) of sodium hydroxide are heated to 140° C. in a VA steel autoclave with vigorous stirring for 6 hours. The reacted reaction mixture is removed from the autoclave at 70° C. The orange-brown solution produced is adjusted to pH 2 using 30% strength hydrochloric acid, and the product is distilled over using steam. On stirring the distillate (about 1.5 1) at 10° C, 2-nitro-5-chlorophenol (156.4 g, 90% of theory) is obtained in the form of yellow crystals.

Provenance & Evidence