Substituted 4-methyl-4,7-dihydro-1,3-dioxepins, their preparation and their use as scents

US4784985A · kind A · utility

Assignee

• BASF SE

Inventors

• Walter Gramlich · Edingen-Neckarhausen, DE
• Hardo Siegel · Speyer, DE

Key dates

• Filing date: Oct 27, 1986
• Grant date: Nov 15, 1988
• Expiry date: Oct 27, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11B9/0084
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substituted 4-methyl-4,7-dihydro-1,3-dioxepins of the general formula I ##STR1## where R.sup.1 is an alkyl of 1 to 12 carbon atoms which may furthermore contain oxygen in the form of an ether group, or a 5-membered to 8-membered ring which is unsubstituted or substituted by alkyl groups and/or an alkylene group, has up to 10 carbon atoms and may furthermore contain oxygen in the form of an ether group, and R.sup.2, R.sup.3 and R.sup.4 are each hydrogen or methyl, with the exception of the compound 2-tert-butyl-4,7-dihydro-4,7-dimethyl-1,3-dioxepin, the preparation of substituted 4-methyl-4,7-dihydro-1,3-dioxepins and their use as scents and aromas, and scent compositions containing these compounds.