Abstract: The present invention relates to a process of manufacturing 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid hexyl ester having a Gardner value of 8.2 or less comprising adjusting the reaction mixture obtained by reacting 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid with n-hexanol to a pH of more than 7 followed by extracting at least once with an aqueous phase and adsorbing the dissolved 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid hexyl ester over at least two different adsorbents.

Abstract: The presently claimed invention relates to a method for obtaining crystalline diethylamino hydroxybenzoyl hexyl benzoate. Further, the presently claimed invention relates to crystalline diethylamino hydroxybenzoyl hexyl benzoate obtained by the method and to a cosmetic composition comprising crystalline diethylamino hydroxybenzoyl hexyl benzoate. The crystalline diethylamino hydroxybenzoyl hexyl benzoate obtained by the method of the presently claimed invention has a phthalic acid dihexyl ester (PSDHE) content in the range of 1 to 250 ppm.

Abstract: The present invention relates to a process for isolating 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid hexyl ester with a high purity and low phthalic acid dialkyl ester content.

Abstract: Disclosed is a process for the oxidation of at least one chroman (C1) in a solvent mixture comprising at least two solvents or in a C-bearing solvent, with a gaseous compound comprising, essentially consisting of, or consisting of oxygen in the presence of a copper catalyst, said copper catalyst exhibiting the oxidation state (+1) or (+2). A further part of the disclosure is a composition comprising at least one chroman (C1) and/or at least one quinone (C30), a solvent mixture comprising at least two solvents or a C-bearing solvent, a copper catalyst, said copper catalyst exhibiting the oxidation state (+1) or (+2) and a gaseous compound comprising, essentially consisting or consisting of oxygen. A quinone preparation and a process of making same is also part of the invention.

Abstract: The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula III and/or Formula IV and/or Formula V from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula III and/or Formula IV and/or Formula V, including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula IV and/or Formula V in order to produce pest control compositions, in particular insecticides, comprising such compounds.

Abstract: The invention relates to a method for producing cyclic esters of general formula (I.a) or (I.b) in the presence of at least one high-boiling metal alkoxide catalyst. The invention further relates to the stereoisomers of 18-methyl-1-oxacyclooctadec-10-en-2-one and to the use thereof as an odorous substance and/or flavoring substance, to compositions that contain at least one of the stereoisomers of 18-methyl-1-oxacyclooctadec-10-en-2-one and additionally a carrier material, to fragrance compositions and/or to fragrant-substance materials that contain at least one of these compounds, and to a method for giving an odor or flavor to or changing an odor or flavor of compositions by adding at least one of the mentioned compounds to said compositions.

Abstract: The invention pertains to processes to produce dry biomass of pyripyropene producer organisms, processes to obtain pyripyropenes from such dry biomass, as well as to processes to produce compounds of Formula III and/or Formula IV and/or Formula V from the pyripyropenes obtained from the dry biomass. The invention does further pertain to the dry biomass itself, as well as processes using said dry biomass to obtain pyripyropenes for the production of compounds of Formula III and/or Formula IV and/or Formula V, including processes using said dry biomass to obtain pyripyropenes or compounds of Formula III and/or Formula IV and/or Formula V in order to produce pest control compositions, in particular insecticides, comprising such compounds.

Abstract: This invention relates to a process of producing compounds, which are useful as bleach boosters, as well as to the compounds, which are obtainable using said process, and to their use.

Abstract: The present invention relates to a method for isolating coenzyme Q10 of formula (I) by separating material mixtures containing coenzyme Q10 and the compound of formula (II)

Abstract: The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention. The invention further provides an improved method for the carboalumination of alkyne substrates.

Abstract: This invention relates to a process of producing compounds, which are useful as bleach boosters, as well as to the compounds, which are obtainable using said process, and to their use.

Abstract: The present invention relates to a practical and cost-effective method for the synthesis of 5-chloromethylated 2,3-dialkoxy-6-alkyl-1,4-benzoquinones by direct chloromethylation of the corresponding 2,3-dialkoxy-6-alkyl-1,4-benzoquinones. The invention further relates to a method for the preparation of 5-chloromethylated 2,3-dialkoxy-6-alkyl-1,4-benzoquinones starting from a 3,4,5-trialkoxy-1-alkyl-benzene. The invention also relates to a method for the production of Coenzymes Qn, especially coenzyme Q10.

Abstract: The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention. The invention further provides an improved method for the carboalumination of alkyne substrates.

Abstract: A description is given of the use of at least one compound of the formula I where R1, R2, R3 and R4 independently of one another are H or C1-C6-alkyl; and the use of a compound of the formula I for medical use.

Abstract: The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention. The invention further provides an improved method for the carboalumination of alkyne substrates.

Abstract: A description is given of the use of at least one compound of the formula I 1

Abstract: The present invention relates to a process for preparing monoacetylated hydroquinone compounds of the formula I, to the novel final products of the process and to a process for preparing the precursors.