4-formylaminopiperidine derivatives, their use as stabilizers and organic material stabilized with the said derivatives

US4976889A · kind A · utility

Assignee

• BASF SE

Inventors

• Alexander Aumueller · Deidesheim, DE
• Peter Neumann · Wiesloch, DE
• Hubert Trauth · Dudenhofen, DE

Key dates

• Filing date: Nov 14, 1988
• Grant date: Dec 11, 1990
• Expiry date: Nov 14, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D405/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

4-Formylaminopiperidine derivatives of the formula (I) ##STR1## where n is 1 or 2, R.sup.1 to R.sup.4 are each alkyl or R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 are tetra- or pentamethylene, R.sup.5 is hydrogen or alkyl, R.sup.6 is hydrogen, unsubstituted or substituted alkyl, alkenyl, aralkyl or acyl, and, when n is 1, Y is hydrogen, unsubstituted or substituted alkyl, alkenyl, cycloalkyl, bicycloalkyl, aralkyl, aryl, alkyl containing heterocyclic radicals, or ##STR2## or, when n is 2, Y is alkylene, cycloalkylene, aralkylene or arylene or is alkylene which is interrupted by oxygen, nitrogen, sulfur or a 5-membered or 6-membered heterocyclic structure, and their acid addition salts have very good stabilizing properties in plastics.