2-furyl- and 2-thienyl-substituted di- and tetrahydropyrans for use as aroma chemicals
AssigneeBASF SE
InventorsMiriam Bru Roig, Manuel Danz, Ralf Pelzer
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Abstract
The present invention relates to the use of 2-furyl- and 2-thienyl-substituted di- and tetrahydropyrans of the formula (I) wherein the variables are as defined in the claims and the description, as aroma chemicals; to aroma chemical compositions comprising at least one 2-furyl- or 2-thienyl-substituted di- or tetrahydropyran and to a method for preparing an aroma chemical composition. The present invention further relates to specific 2-furyl- and 2-thienyl-substituted di- and tetrahydropyrans and to a method for their preparation.
Claims25
A composition comprising an aroma chemical, wherein the aroma chemical is a compound of the general formula (I)
- wherein
- X is O or S;
- R1 is hydrogen, OH, O—C1-C4-alkyl or O—(C═O)—R5;
- R2, R3, R4 are hydrogen;
- or one of R2, R3, R4 together with R1 represents a double bond;
- and
- R5 is selected from the group consisting of hydrogen and C1-C4-alkyl;
- a mixture of two or more different compounds of the general formula (I), a stereoisomer thereof or a mixture of stereoisomers thereof.
A compound of the general formula (I.a)
- wherein
- R1 is hydrogen, OH, O—C1-C4-alkyl or O—(C═O)—R5,
- R5 is selected from the group consisting of hydrogen and C1-C4-alkyl;
- a mixture thereof, a stereoisomer thereof or a mixture of stereoisomers thereof.
A compound of the general formula (I.b)
- wherein
- R1 is hydrogen, OH, O—C1-C4-alkyl or O—(C═O)—R5,
- R2, R3, R4 are hydrogen;
- or one of R2, R3, R4 together with R1 represents a double bond;
- R5 is selected from the group consisting of hydrogen and C1-C4-alkyl;
- a mixture thereof, a stereoisomer thereof or a mixture of stereoisomers thereof.
A mixture of at least two different compounds of formula (I)
- wherein
- X is S;
- R1 is hydrogen, OH, O—C1-C4-alkyl or O—(C═O)—R5;
- R2, R3, R4 are hydrogen;
- or one of R2, R3, R4 together with R1 represents a double bond;
- and
- R5 is selected from the group consisting of hydrogen and C1-C4-alkyl.
Dependencies are inferred from the claim text.