4-(4'-Hydroxycyclohexyl)-2,2,6,6-tetramethyl piperidines

US3954779A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Malcolm John Smith
• Donald Richard Randell · Stockport, GB

Key dates

• Filing date: Apr 1, 1974
• Grant date: May 4, 1976
• Expiry date: Apr 1, 1994

Classification

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

Abstract

A compound having the formula:- ##SPC1## And salts thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each is hydrogen, an alkyl residue having from 1 to 9 carbon atoms, a cycloalkyl residue having from 5 to 14 carbon atoms or a cycloalkyl-alkyl residue having from 7 to 14 carbon atoms, Y is hydrogen, 0.degree., an alkyl residue having from 1 to 4 carbon atoms, or an aralkyl residue having from 7 to 12 carbon atoms and Z is hydrogen, an unsubstituted or substituted alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 2 to 20 carbon atoms, a cycloalkyl residue having from 5 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms, an aryl residue having from 6 to 12 carbon atoms, or the group having the formula: wherein Z.sub.1 has the same significance as Z as hereinbefore defined, or Z.sub.1 is a group --NR.sub.5 R.sub.6 wherein R.sub.5 is hydrogen or an alkyl residue having from 1 to 4 carbon atoms and R.sub.6 is hydrogen, an alkyl group having from 1 to 20 carbon atoms, a cycloalkyl group having from 5 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or an aryl residue ha…