Hydrochloric Acid → 2,4-Diaminophenol hydrochloride

HRID 2285621Notes

Reaction equation

HRID 2285621 reaction equation
[ClH:1].[N+:2]([C:5]1[CH:10]=[C:9]([N+:11]([O-])=O)[CH:8]=[CH:7][C:6]=1[OH:14])([O-])=O.[H][H]>>[ClH:1].[ClH:1].[NH2:2][C:5]1[CH:10]=[C:9]([NH2:11])[CH:8]=[CH:7][C:6]=1[OH:14]

Participants

4

Reactant 3

HCID 313Hydrochloric AcidHCID 14932,4-DinitrophenolHCID 178418361HCID 178418361, compound

Product 1

HCID 87152,4-Diaminophenol hydrochloride

Conditions

Temperature
50 °C

Procedure

Into the reactor described in the foregoing Example 7 there are charged 200 ml of a 4% aqueous solution of hydrochloric acid and 4 g of 2,4-dinitrophenol are added thereto. Hydrogen is continuously introduced inside the chamber under the pressure of 1 atm at the rate of 15 ml/min. The reactor is heated to the temperature of 50° C. and hydrogenation is conducted at this temperature for 1.5 hours. After cooling and precipitation with a 37% hydrochloric acid there are obtained 3.9 g of 2,4-diaminophenol dihydrochloride which corresponds to 91.5% as calculated for the starting 2,4-dinitrophenol.

Workup

  1. additionare added
  2. temperatureAfter cooling
  3. customprecipitation with a 37% hydrochloric acid

Sources & evidence

ORD record
ord-96bcd4a70fd347e384f336f326af817a
Source dataset
uspto-grants-1982_04
Patent number
US04323708

Reaction notes

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