Patent · US Expired

Process for the production of 8 .alpha., 12-oxido-13,14,15,16-tetranorlabdane

US5688976A · kind A · utility

0Cited by

4References

19Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Georg Knuebel · Goldkronach, DE
Andreas Bomhard · Biberach, DE
Ulf-Armin Schaper · Krefeld, DE
Theo Stalberg · Monheim, DE
Thomas Markert · Monheim, DE

Key dates

Filing date	Jul 3, 1996
Grant date	Nov 18, 1997
Priority date	—
Expiry date	Jul 3, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D307/92
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for producing 8.alpha.,12-oxido-13,14,15,16-tetranorlabdane through the cyclizing dehydration of 8.alpha.,12 -dihydroxy-13,14,15,16-tetranorlabdane in the presence of aluminophyllosilicates.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.