Sulfonamides derived from 1-hydroxy-6-aminonaphthalene-3-sulfonic acid (J acid)

US5354904A · kind A · utility

Assignee

• BASF SE

Inventors

• Udo Mayer · Bischofswerda, DE
• Ulrike Schloesser · Mannheim, DE

Key dates

• Filing date: Oct 8, 1992
• Grant date: Oct 11, 1994
• Expiry date: Oct 8, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C311/41
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The sulfonamides have the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.13 -lkyl, substituted or unsubstituted phenyl, C.sub.1 -C.sub.8 -alkanoyl or substituted or unsubstituted benzoyl, and PA1 R.sup.2 and R.sup.3 are each independently of one another substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl or substituted or unsubstituted piperidinyt, or R.sup.2 may also be hydrogen.