Procedure for the manufacture of 3-amino-2-oxo-pyrrolidines, new intermediates and their use

US6156908A · kind A · utility

Assignee

• Rohm Gesellschaft, GmbH · DE

Inventors

• Karlheinz Drauz · Alzenau, DE
• Ingo Klement · Lich, DE
• Gunter Knaup · Bruchköbel, DE

Key dates

• Filing date: Sep 10, 1999
• Grant date: Dec 5, 2000
• Expiry date: Sep 10, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention is directed to a process for the preparation of lactams of Formula I. It is further directed to new advantageous intermediates of Formula II and the use thereof. By the cyclization of compounds of Formula II, compounds of Formula I are obtained.