Process for the production of hydantoins

US4448942A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Bernhard Schulte · Krefeld, DE
• Wolfgang Jakob · Moers, DE
• Willi Dunwald · Leverkusen, DE
• Karl-Heinrichrich Meyer · Krefeld, DE

Key dates

• Filing date: Nov 1, 1982
• Grant date: May 15, 1984
• Expiry date: Nov 1, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/907
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a new process for the production of compounds containing at least one hydantoin ring by reacting a carbodiimide with a derivative of an .alpha.,.beta.-unsaturated carboxylic acid corresponding to the following general formula: ##STR1## wherein R.sup.3, R.sup.4 and R.sup.5 are as defined in the description.