Process for preparing cyclic N-vinylacylamines

US4511722A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Heinrich Krimm · Krefeld, DE
• Hans-Josef Buysch · Krefeld, DE
• Peter M. Lange · Leverkusen, DE
• Reinhold Klipper · Neunburg vorm Wald, DE

Key dates

• Filing date: Feb 16, 1983
• Grant date: Apr 16, 1985
• Expiry date: Feb 16, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F26/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Cyclic N-vinylacylamines are prepared by heating carbonic acid esters of cyclic N-2-hydroxyethylacylamines in the presence of a catalytic amount of alkali or alkaline earth metal compound having an alkaline reaction and subsequently distilling the reaction mixture. Cyclic N-vinylacylamines are valuable precursors for preparing plant protection agents and medicaments and serve as polymerization and copolymerization components for preparing plastics, surface coatings, paints and ion exchange materials.