Patent ID: 8580910

Claim:
A process comprising the steps (d1) monoaminating a composition described by Formula (X), wherein each Z is independently Cl or Br and R 1 and R 2 are each independently H, alkyl, or aryl; by heating a suspension of the composition of Formula (X) in solvent to a temperature in the range of about 60° C. to about 140° C. and contacting it with an aqueous solution of at least 2.0 equivalents HNR 7 R 8 to produce a composition of Formula (XI), wherein R 7 and R 8 are each independently H, alkyl or aryl, or may be joined to form an aliphatic ring structure; (e1) reacting the composition of Formula (XI) with benzyl alcohol and at least 1.0 equivalent of NaOH or of sodium benzyloxide to produce a composition of Formula (XII); (f1) hydrogenating the composition of Formula (XII) by contacting the reaction mixture formed in step (b1) with hydrogen at a pressure in the range of about 0.31 to about 3.45 MPa and a temperature in the range of about 20° C. to about 100° C. for sufficient time to hydrogenate the composition of Formula (XII), thereby producing a reaction mixture comprising a composition of Formula (IX) and toluene (d1) the reaction mixture formed in step (a) with an aqueous solution comprising 1 to 2 equivalents of acid per mol of 2,4,5-triaminophenol and, optionally, heating the solution, thereby dissolving the 4,4,5-triaminophenol; (e1) filtering the reaction mixture, thereby removing the spent hydrogenation catalyst; (f1) extracting the toluene from the reaction mixture; and (g1) adjusting the pH of the extracted, filtered reaction mixture to a value between about 5 and about 7, by adding a base wherein said base does not increase the solubility of the Formula (IX) composition, thereby precipitating the composition of Formula (IX) from the reaction mixture.