Fragrance precursor compounds

US6369248B1 · kind B1 · utility

Assignee

• Givaudan SA · CH

Inventors

• Denise Anderson · Brooklyn, US
• Georg Frater · Winterthur, CH

Key dates

• Filing date: Dec 20, 1999
• Grant date: Apr 9, 2002
• Expiry date: Dec 20, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/507
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds having formula (I) in which n is 1, 2 or 3 and R1 to R6 represent, independently, branched or unbranched, substituted or unsubstituted alkyl-, alkenyl-, alkinyl-, cycloalkyl-, cycloalkenyl- or aromatic-radicals or hydrogen wherein these radicals may in addition contain one or more —O— and/or (a)—groups, whereby one or two rings can be built by the combination of the respective R1 to R6 and this/these ring(s) can be further substituted by an alkyl-group, in which X is either O and R7 represents a radical of an alcohol or phenol R7OH, or X is N and R7 represents the radical of an amine R7′R7″NH, whereby R7′ and R7″ represent independently, branched or unbranched, substituted or unsubstituted alkyl-, alkenyl-, alkinyl-, cycloalkyl-, cycloalkenyl- or aromatic radicals or either R7′R7″ may be hydrogen, whereby the amine is a fragrant amine or the amine has more than 9 C atoms, whereby R7 of the alcohol or phenol and R7′ and/or R7″ of the amine, respectively, may further contain at least one remaining part C(OH)R1R2—CR3R4—(CR5R6)n—CO— of formula (I), are useful as precursors for the delive…