Synthesis of tetraphenylporphines with active groups in the phenyl rings 6. Synthesis of monosubstituted tetraphenylporphines by diazotization

Monoaminophenyltriphenylporphines are diazotized and then used to produce monohalosubstituted tetraphenylporphines. Isomeric mono(p-hydroxyphenylazo)phenyltriphenylporphines are synthesized by replacing the azo group of diazonium salts of monosubstituted porphines with phenol.See [1] for Communication 5.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1507–1509, November, 1990.