Abstract: The present invention relates to a method for stabilizing phenylacetaldehyde by adding at least one additive, in which case the additive contains one or more polybasic carboxylic acids.

Abstract: Aryl alkyl ethers can be produced by the reaction of hydroxyaromatics with an alcohol in the presence of a catalyst. This process achieves higher yields of aryl alkyl ethers and the formation of ring-alkylated products and dialkyl ethers is markedly reduced.

Abstract: The present invention relates to novel macrocyclic compounds, and to their preparation and use in perfumes. Specifically, the present invention relates to novel 1,4-dioxacycloalkan-2ones and 1,4-dioxzcycloaken-2-ones.

Abstract: The invention relates to the preparation of the compounds isolongifolanol (IUPAC name: 2,2,7,7-tetramethyltricyclo[6.2.1.01,6]undecan-6-ol) and isolongifolenol (IUPAC name: 2,2,7,7-tetramethyltricyclo[6.2.1.01,6]undec4-en-6-ol) and to the use thereof as fragrance or aroma substance.

Abstract: A novel apparatus can be used to simulate the chewing process, wherein the wherein the apparatus comprises a thermostattable kneading space comprising an upper portion and lower portion, wherein the lower portion comprises at least two kneading paddles for comminuting and kneading the test material and the upper portion comprising an air space for connecting the volatile components released during the comminution and kneading, wherein said apparatus comprises an inlet in which saliva is introduced into the kneading space and a second inlet in which air is passed into the kneading space, wherein air is passed together with the volatile components of the comminution and kneading process through an outlet of the kneading space to a detector system.

Abstract: The present invention relates to a process for the synthesis of cinnamic esters and/or cinnamic acids by condensation of aldehydes with carboxylic anhydrides, using iron(II) salts as catalyst.

Abstract: The present invention relates to synthetic enzymes for the production of coniferyl alcohol, coniferylaldehyde, ferulic acid, vanillin and vanillic acid, the use thereof for the production of coniferyl alcohol, coniferylaldehyde, ferulic acid, vanillin and vanillic acid, DNA coding for these enzymes and microorganisms transformed with this DNA.

Abstract: Mint lactone can be prepared by hydrogenating hydroxymenthofurolactone to give the intermediate dihydrohydroxymenthofurolactone with the subsequent elimination of water.

Abstract: The present invention relates to a process for the preparation of cis-2-tertiary-butylcyclohexanol, where 2-tertiary-butylphenol is hydrogenated in the presence of a nickel/iron catalyst mixture and 2-tertiary-butylcyclohexyl acetate.

Abstract: Dihydrocoumarin is prepared by hydrogenating coumarin in the presence of a palladium catalyst.

Abstract: Macrocyclic ester compounds can be prepared from oligoesters by thermal cleavage in the presence of a thermostable benzene derivative.

Abstract: A process is provided for producing &ggr;-decalactone using Yarrowia lipolytica HR 145 (DSM 12397). The process includes preparing the product in a bioreactor by culturing the pure strain of Yarrowia lipolytica in a culture medium containing carbon compounds, nitrogen compounds, inorganic salts, trace elements, vitamins, etc. Other ingredients of the culture medium include glycerol, glucose, mannitol, citric acid, malt extract, yeast extract, casein hydrolysate, castor oil, cotton seed meal or corn steep liquor. Also sulphates, nitrates, chlorides, carbonates or phosphates of metals sodium, potassium magnesium, manganese, calcium, zinc, and mixtures thereof can be used in the culture medium. Further, a pure strain of Yarrowia lipolytica HR 145 (DSM 12397) is provided.

Abstract: Benzylacetone can be prepared by hydrogenating benzylideneacetone in the presence of a palladium catalyst on activated carbon and/or a palladium catalyst on aluminum oxide.

Abstract: 2-Alkoxydecahydro-2,3a,4,4,7-pentamethyl-3,7a-methano-7aH-indeno[5,6-b]furans are valuable novel woody fragrances for the preparation of perfume oils.

Abstract: Methyl cyclohexyl-propionate is prepared by the hydrogenation of methyl cinnamate in the presence of a ruthenium and/or palladium catalyst.

Abstract: Benzaldoximes having at least one aromatic hydroxyl or alkoxy group are effective constituents in topical cosmetic compositions, in particular, skin lightening compositions.

Abstract: The present invention provides for novel 3-thiazolines comprising the formula where R1, R2 and R3 are identical or different and denote hydrogen or a lower alkyl, wherein said lower alkyl denotes an unbranched or branched hydrocarbon having 1 to 3 carbon atoms. These novel 3-thiazolines can be used as odorants and flavorings having an olfactory impression.

Abstract: The present invention relates to a novel process for the preparation of aromatic carbonyl compounds by oxidative cleavage of styrenes using lipases and hydrogen peroxide or hydrogen peroxide donors in the presence of carboxylic acids or carboxylic esters.

Abstract: A process for separating off cycloalkenes having at least two double bonds from a reaction mixture in hydrocarbon solution formed during the metathesis of cycloalkamonoenes or cyclomonoene/cyclopolyene mixtures comprising the steps of treating the reaction mixture with zeolites in the liquid phase, absorbing the olefins having at least two double bonds present in the solution by the zeolite, separating off the laden zeolite, and obtaining the cycloalkadienes and cyclopolyenes by desorption.

Abstract: A flavor composition comprising 8-ocimenyl esters of the formula wherein one of the two radicals R1 and R2 is methyl and the other is vinyl and one of the two radicals R3 and R4 is methyl and the other is wherein R5 is hydrogen, alkyl or alkenyl. Such flavor composition can also be mint and/or fruit flavor compositions, wherein the 8-ocimenyl esters have a flavor-enhancing action.