2,4-Dioxa-spiro(5,5)undec-8-ene perfume compositions

US4113664A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Jens Conrad · Hilden, DE
• Klaus Bruns · Uerdingen, DE

Key dates

• Filing date: Feb 4, 1977
• Grant date: Sep 12, 1978
• Expiry date: Feb 4, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11B9/008
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A perfumery composition consisting essentially of from 1% to 50% by weight of a 2,4-dioxa-spiro(5,5)undec-8-en of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are members selected from the group consisting of hydrogen and methyl, R.sub.4 is a member selected from the group consisting of hydrogen, alkyl having 1 to 4 carbon atoms, methoxy, ethoxy, vinyl and 1-propenyl, R.sub.5 is a member selected from the group consisting of hydrogen and alkyl having 1 to 4 carbon atoms, and R.sub.4 and R.sub.5 taken together are --(CH.sub.2).sub.n -- where n is an integer from 4 to 6, and the remainder, customary constituents of perfumery compositions. Some of the compounds are novel.