Zohohohosupponsankioyobisurupponsanki jusuruazosenryosonoseizohohosonoazosenryonodosakukagobutsusonosakukagobutsunoseizohohooyobiseruroosuseninochakushokuhohohokozokuaminsonosei

摘要

The aromatic amines correspond to the formula: IMAGE in which R1 and R2 have the meanings given in Claim 1. They are prepared by reacting a corresponding aminophosphonic acid, which contains no sulpho group, with a sulphonating agent. Novel azo dyestuffs, which contain one or more radicals of a diazotised amine of the formula I, are obtained from these amines by diazotising and coupling with a coupling component. The novel azo dyestuffs are particularly suitable for dyeing textiles.