Hydrogenated indenopyrans and their use in aromatic compositions

US4271047A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Jens Conrad · Hilden, DE
• Horst Upadek · Erkrath, DE
• Klaus Bruns · Uerdingen, DE

Key dates

• Filing date: Dec 19, 1979
• Grant date: Jun 2, 1981
• Expiry date: Dec 19, 1999

Classification

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

Abstract

This invention is directed to compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen or a methyl radical, with the proviso that only one of R.sub.1 and R.sub.2 is methyl radical, as well as to aromatic compositions containing said compounds and the use of such aromatic compositions to impart desired odors.