Certain intermediate imino-substituted pyridines

US5183897A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf Angerbauer · Wuppertal, DE
• Peter Fey · Wuppertal, DE
• Walter Hubsch · Wuppertal, DE
• Thomas Philipps · Cologne, DE
• Hilmar Bischoff · Wuppertal, DE
• Dieter Petzinna · Mülheim an der Ruhr, DE
• Delf Schmidt · Wuppertal, DE

Key dates

• Filing date: Apr 18, 1991
• Grant date: Feb 2, 1993
• Expiry date: Apr 18, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/1804
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Intermediate imino-substituted pyridines of the formula ##STR1## in which R.sup.1 is optionally substituted aryl, PA1 R.sup.2 is optionally substituted aryl or alkyl, OH, alkoxy, aralkoxy, or optionally substituted aryloxy, PA1 R.sup.3 is isopropyl, PA1 R.sup.4 is isopropyl PA1 X is --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--, PA1 R is ##STR2## R.sup.6 is H or alkyl, and R.sup.7 is H, alkyl, phenylalkyl, aryl or a cation, and their salts.