Abstract: The invention relates to a distillative process for the preparation of a diastereomer-enriched odorant mixture, and to the diastereomer-enriched odorant mixture and its use as an odorant or for the preparation of an odorant composition. Furthermore, the invention relates to the use of the diastereomer-enriched odorant mixture for imparting, modifying or enhancing a floral odour note of a perfumed product or for the preparation of a perfumed product. Finally, the present invention also relates to odorant compositions and perfumed products comprising the diastereomer-enriched odorant composition.

Abstract: The present invention relates to a method for the stereo selective production of a trans-diol or a cis-diol or a hydroxyketone comprising the step(s) (i) conversion of a trans-diol or a cis-diol to a hydroxyketone and/or (ii) conversion of a hydroxyketone to a cis-diol or a trans-diol, catalyzed by an enzyme, which is encoded by a nucleic acid sequence of SEQ ID NO: or wherein the enzyme comprises an amino acid sequence of SEQ ID NO: 2. The present invention also relates to the use of an enzyme encoded by a nucleic acid sequence of SEQ ID NO: 1 or wherein the enzyme comprises an amino acid sequence of SEQ ID NO: 2 for the conversion of a trans-diol to a cis-diol or for the conversion of a trans-diol or a cis-diol to a hydroxyketone and/or the conversion of a hydroxyketone to a trans-diol or a cis-diol.

Abstract: The present invention primarily relates to the use of one or more stereoisomers of the compound of formula (I) as described herein for modifying and/or enhancing the olfactory impression of one or more fragrances with a lily of the valley scent. The invention further relates to a new mixture comprising or consisting of one or more stereoisomers of the compound of formula (I) as described herein and two or more stereoisomers of the compound of formula (II) as described herein with a weight ratio of the stereoisomers of the compounds of formula (II) as described herein, fragrance compositions comprising or consisting of a mixture as described herein, perfumed products containing mixtures or fragrance composition as described herein, and a process for modifying and/or enhancing the lily of the valley scent of a compound of formula (II) as described herein, respectively for preparing a perfumed product as described herein.

Abstract: The present invention relates in particular to a mixture comprising the compound of formula (Ia) as described herein, wherein the mixture is free or essentially free of the compound of formula (Ib) as described herein, preferably of the compounds of formulae (Ib) and furthermore (Ic) and/or (Id) as described herein. The invention further relates to a method for manufacturing said mixture, fragrance substance compositions containing or consisting of said mixture, perfumed products containing said mixtures or fragrance substance compositions, and various methods and uses for imparting, modifying and/or enhancing certain odour notes.

Abstract: The present invention primarily relates to the use of one or more stereoisomers of the compound of formula (I) as described herein for modifying and/or enhancing the olfactory impression of one or more fragrances with a lily of the valley scent. The invention further relates to a new mixture comprising or consisting of one or more stereoisomers of the compound of formula (I) as described herein and two or more stereoisomers of the compound of formula (II) as described herein with a weight ratio of the stereoisomers of the compounds of formula (II) as described herein, fragrance compositions comprising or consisting of a mixture as described herein, perfumed products containing mixtures or fragrance composition as described herein, and a process for modifying and/or enhancing the lily of the valley scent of a compound of formula (II) as described herein, respectively for preparing a perfumed product as described herein.

Abstract: The present invention relates in particular to a mixture comprising the compound of formula (Ia) as described herein, wherein the mixture is free or essentially free of the compound of formula (Ib) as described herein, preferably of the compounds of formulae (Ib) and furthermore (Ic) and/or (Id) as described herein. The invention further relates to a method for manufacturing said mixture, fragrance substance compositions containing or consisting of said mixture, perfumed products containing said mixtures or fragrance substance compositions, and various methods and uses for imparting, modifying and/or enhancing certain odour notes.

Abstract: Suggested is a perfume composition, comprising (a) Petit grain oil and (b) Hydroxy carboxylic acid esters, which is particular useful for fighting various malodors.

Abstract: The present invention primarily relates to fragrance substance mixtures, preferably perfume oils, comprising (a) compound (A-1) and compound (A-2) and (b) one or more further musk fragrance substances, which are not isolongifolenyl methyl ethers, wherein the mass ratio of the total quantity of musk fragrance substances of constituent (b) to the total quantity of compounds (A-1) and (A-2) (constituent (a)) is preferably greater than or equal to 1:2. Furthermore, the present invention relates to perfumed products containing fragrance substance mixtures of this type according to the invention, in particular perfume oils, and a method for modifying certain olfactory properties of fragrance substances, fragrance substance mixtures, perfume oils or correspondingly perfumed products.

Abstract: The present invention relates to depot preparations for the targeted release of an aldehyde together with two carboxylic acids, where the released aldehydes are organoleptic substances, specifically fragrances or flavorings, and these depot preparations are prepared by reacting aldehydes with carboxylic anhydrides.

Abstract: The present invention relates primarily to the novel compound of the formula (II) and certain mixtures comprising the compound of the formula (II) and use thereof as perfume. In addition the invention relates to perfume mixtures and perfumed products comprising a (preferably sensorially effective) amount of the compound of the formula (II) or a mixture according to the invention.

Abstract: The present invention relates to an odorant comprising or consisting of (A) at least 75% by weight of acrylic acid methyl ester and/or acrylic acid ethyl ester, (B) 2-19.5% by weight of tetrahydrothiophene (THT), (C) 5-50 ppm of hydroquinone monomethyl ether, and also neither, one or both components selected from the group consisting of (D) 0.025-0.2% by weight of butylhydroxy toluene and/or butyl hydroxyanisole and (E) 5-500 ppm of one or more compounds of formula (I) wherein R is selected from the group consisting of H, —OH, —NH2, —O2CR1 and —NOCR1, wherein R1 represents an alkyl radical containing 1 to 4 carbon atoms, based on the total weight of the odorant.

Abstract: The present invention relates to fragrance substance mixtures, in particular perfume oils, comprising (a) compound (A) and (b) at least one musk fragrance substance wherein the mass ratio of the total quantity of the musk fragrance substance or substances of component (b) to compound (A) is greater than or equal to 1:1. The present invention also relates to perfumed products comprising fragrance substance mixtures of this type according to the invention, in particular perfume oils, and to a process for the production of the fragrance substance mixtures and perfume oils according to the invention.

Abstract: Mixtures are described which comprise or consist of 3-(4-methylcyclohex-3-enyl)butyraldehyde (limonenal) and (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanoazuleno(5,6-d)-1,3-dioxole (Ambrocenide®), the weight ratio of limonenal to Ambrocenide® being in the range from 150:1 to 2500:1.

Abstract: The invention relates to a compound of the formula (VII) to an odoriferous substance or aroma composition comprising such a compound, and to a perfumed or aromatized product comprising such a compound. The invention furthermore relates to the use of a compound of the formula (VII) as an odoriferous substance and/or for improving fixation of an odoriferous substance or aroma composition. The invention moreover relates to a method for producing a compound of the formula (VII), to a method for producing a precursor of the compound of the formula (VII) and to the precursor itself. It moreover relates to a method for producing, enhancing or modifying a sandalwood odor in a mixture.

Abstract: The invention relates to a compound of the formula (VII) to an odoriferous substance or aroma composition comprising such a compound, and to a perfumed or aromatized product comprising such a compound. The invention furthermore relates to the use of a compound of the formula (VII) as an odoriferous substance and/or for improving fixation of an odoriferous substance or aroma composition. The invention moreover relates to a method for producing a compound of the formula (VII), to a method for producing a precursor of the compound of the formula (VII) and to the precursor itself. It moreover relates to a method for producing, enhancing or modifying a sandalwood odor in a mixture.

Abstract: A mixture is described which comprises or consists of 7.5 to 27.5 parts by weight of 3-(4-methylcyclohex-3-enyl)butyraldehyde (limonenal) and 92.5 to 72.5 parts by weight of 2,6-dimethyl-7-octen-2-ol (dihydromyrcenol), the sum of the parts by weight of 3-(4-methylcyclohex-3-enyl)butyraldehyde and 2,6-dimethyl-7-octen-2-ol being 100.

Abstract: Mixtures are described which comprise or consist of 3-(4-methylcyclohex-3-enyl)butyraldehyde (limonenal) and (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanoazuleno(5,6-d)-1,3-dioxole (Ambrocenide®), the weight ratio of limonenal to Ambrocenide® being in the range from 150:1 to 2500:1.

Abstract: A compound of formula (Ia) or (Ib), wherein in each of formulae (Ia) and (Ib) R1 and R2, independently of one another, are H or CH3, and the use thereof as a sandalwood fragrance.

Abstract: The use of a compound of the formula I in which R1 is the radical (a) of the enol form of an aldehyde having 6 or more C atoms or (b) of a ketone having 10 or more C atoms and R2 is an (a) branched or unbranched C1 to C4 alkyl group or (b) branched or unbranched C2 to C4 alkylene group, as a fragrance precursor.

Abstract: A compound of formula (Ia) or (Ib), wherein in each of formulae (Ia) and (Ib) R1 and R2, independently of one another, are H or CH3, and the use thereof as a sandalwood fragrance.