Substituted 4-methylene-tetrahydropyrans, 4-methyl-dihydropyrans and 4-methyl-tetrahydropyrans and use thereof as aroma chemicals

US12421203B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Miriam BRU ROIG · Heidelberg, DE
• Florian Garlichs · Neustadt, DE
• Manuel Danz · Plankstadt, DE
• Ralf Pelzer · Rastenberg, DE
• Helmut Kronemayer · Heidelberg, DE
• Volker Hickmann · Ludwigshafen, DE
• Melanie WEINGARTEN · Ludwigshafen am Rhein, DE

Key dates

• Filing date: Dec 15, 2020
• Grant date: Sep 23, 2025
• Expiry date: Aug 8, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D319/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to substituted 4-methylene-tetrahydropyrans, 4-methyl-dihydropyrans and 4-methyl-tetrahydropyrans of formula (I), where the variables are as defined in the claims and description, to a stereoisomer thereof, to a mixture of stereoisomers thereof, to a mixture of different di- and tetrahydropyrans (I) and to a mixture containing at least one di- or tetrahydropyran (I) and at least one cyclic acetal which is a 1,3-dioxan carrying in 2-position an isobutanol-2-yl-(derived) substituent and in 4,4- or 5,5-position two methyl substituents. The invention also relates to the use of such compounds as an aroma chemical and/or for modifying and/or enhancing the aroma of a composition, to compositions comprising such compounds, to methods for preparing such compounds and to a product obtainable by these methods.