Piperidine derivatives

US3959291A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventor

• Barry Cook

Key dates

• Filing date: Feb 1, 1974
• Grant date: May 25, 1976
• Expiry date: Feb 1, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D211/94
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A composition comprising an organic material and, as stabiliser, a compound having the formula ##SPC1## And salts thereof, wherein R.sub.1 and R.sub.2 are the same or different and each is an alkyl residue having from 1 to 12 carbon atoms or R.sub.1 and R.sub.2, together with the carbon atom to which they are bound, form a cycloalkyl residue having from 5 to 12 carbon atoms in the ring, Y is O, hydrogen, a straight or branched alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 3 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or a group having the formula ##EQU1## wherein R is hydrogen, or a methyl or phenyl residue and R.sub.3 is hydrogen or a straight- or branched chain alkyl residue having from 1 to 12 carbon atoms.