Quarternary polycyclic polyammonium salts and process for their preparation

US6252066A · kind A · utility

Inventors

• Bernd Nestler · Jena, DE
• Michael Seebach · Hattersheim, DE

Key dates

• Filing date: Mar 4, 1999
• Grant date: Jun 26, 2001
• Expiry date: Mar 4, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Quaternary polycyclic polyammonium salts of the general formula ##STR1## and a process for their preparation are claimed, where A.sup.1, A.sup.2, A.sup.3, A.sup.4, R.sup.1, R.sup.2, X and Y have the meanings mentioned in the description.