Aniline → Phenyl-1-naphthylamine

Participants

Reaction Conditions

Reaction Steps

288 parts of α-naphthol, 205 parts of aniline and 10 parts of tributyl phosphite are mixed and first heated to 196° C. The reaction commences, with elimination of water. The water is removed by means of a water separator and the aniline which has escaped is returned. The internal temperature is raised to 235° C in the course of 8 hours. At this point, the elimination of water has ended (33 parts of water). The reaction mixture is cooled to 150° C and the excess aniline and α-naphthol are distilled off under reduced pressure. Thereafter, 400 parts of phenyl-α-naphthylamine are obtained at a boiling point of 202° - 203° C/5 mm Hg; the product has a melting point of 55° - 58° C and corresponds to a yield of 91% of theory.

Provenance & Evidence