abstract |
Phenylenediamines of the formula in the R¹ is hydrogen, formyl or oxalyl, R² is hydrogen or C₁-C₄ alkyl and R³ is hydrogen or C₂-C₈ alkanoyl, with the proviso that R¹ and R² are not simultaneously hydrogen and that when R² is methyl or methyl, R¹ and R³ are not simultaneously hydrogen, and a process for the preparation of phenylenediamines. |