§
Luxuse
Patent Intelligence
Sign In
Patent EP0161580A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0161580A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for the preparation of a lacton

Assignee: F Hoffmann La Roche AG
•
Filing: 1985-05-02
•
Granted: —
•
Expires: 2005-05-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Es wird ein neues Verfahren beschrieben zur Herstellung des optisch aktiven Lactons der Formel Hierbei wird das Cycloanhydrid der Formel mit einem sekundären, chiralen Alkohol der Formel umgesetzt und der erhaltene Halbester der Formel reduziert. A new process for producing the optically active lactone of the formula is described Here, the cycloanhydride of the formula with a secondary, chiral alcohol of the formula implemented and the obtained half ester of the formula reduced. Die Substituenten R und R 1 haben die in der Beschreibung angegebene Bedeutung. The substituents R and R 1 have the meaning given in the description.

Inventors

  • 👤 Horst Dr. Pauling
  • 👤 Christof Wehrli

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 03:39
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/04; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/32

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag