Carbonyl compounds, methods of making the same, and their use as fragrances and fragrance-enhancing additives

US6632787B1 · kind B1 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Thomas Markert · Monheim, DE
• Ute Lemke · Neuss, DE
• Elke Veit · Titz, DE
• Theo Ten Pierik · Venlo, NL
• Ralph Nemitz · Frechen, DE
• Volker Porrmann · Hilden, DE
• Marc Speitkamp · Goldkronach, DE

Key dates

• Filing date: Aug 10, 2001
• Grant date: Oct 14, 2003
• Expiry date: Aug 10, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C49/21
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Carbonyl compounds derived from the reaction of alkyl cyclopentenols and vinyl ethers are described. The carbonyl compounds described have excellent fragrance properties, and their use as fragrances and/or fragrance-enhancing compounds is also described. Processes for the preparation of the carbonyl compounds are described as well.