N-(.beta.-carbony- and .beta.-cyanovinyl)-2,2,6,6-tetramethyl-piperidine derivatives

US5434202A · kind A · utility

Assignee

• BASF SE

Inventors

• Alfred Krause · Speyer, DE
• Alexander Aumueller · Deidesheim, DE
• Hubert Trauth · Dudenhofen, DE

Key dates

• Filing date: Jun 3, 1994
• Grant date: Jul 18, 1995
• Expiry date: Jun 3, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/3435
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-(.beta.-carbonyl- and .beta.-cyanovinyl)-2,2,6,6-tetramethylpiperidine derivatives of the formula I ##STR1## where R.sup.1 is COOR.sup.3, COR.sup.4, CONR.sup.4 R.sup.5 or CN, PA1 R.sup.2 has the meanings of R.sup.1 or is C.sub.1 -C.sub.12 -alkyl or hydrogen, PA1 R.sup.3 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.5 -alkenyl or phenyl which can be mono- to trisubstituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, halogen, hydroxyl, phenoxy, phenyl, tolyl or xylyl, PA1 R.sup.4 and R.sup.5 are each hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl or phenyl which can be mono- to trisubstituted by C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, halogen, hydroxyl, phenoxy, phenyl, tolyl or xylyl, PA1 n is 1-4, PA1 X and A for each individual n have been defined in the specification.