6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes

US4351772A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Horst Upadek · Erkrath, DE
• Klaus Bruns · Uerdingen, DE

Key dates

• Filing date: Nov 20, 1981
• Grant date: Sep 28, 1982
• Expiry date: Nov 20, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11B9/0088
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention is directed to terpene derivatives. More particularly, this invention relates to a mixture of isomers of the formula ##STR1## wherein R.sub.1 and R.sub.2, which are different from each other, are each methyl or isopropyl, the preparation thereof, and perfume compositions containing them.