Oligomeric diarylbutadienes

US6436373B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Thorsten Habeck · Meckenheim, DE
• Thomas Wunsch · Speyer, DE
• Horst Westenfelder · Neustadt, DE

Key dates

• Filing date: Dec 6, 1999
• Grant date: Aug 20, 2002
• Expiry date: Dec 6, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C255/41
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Oligomeric 4,4-diarylbutadienecarboxylates and -carboxamides of the formula I in whichR1 and R2 independently of one another are hydrogen, an aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic radical or substituents which confer solubility in water, chosen from the group consisting of carboxylate, sulfonate or ammonium radicals;R3 is an aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic radical or a radical which is bonded by a carbonyl, sulfonyl or a phosphonyl group, or is a carboxylate or a cyano group;Y is the group; in whichR4 is hydrogen, an aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic radical andm is from 2 to 10,n is from 1 to 3, andx is the m-valent radical of a polyol having from 2 to 10 hydroxyl groups.