A method of providing a fragrant odour to an application, comprising the addition thereto of at least one compound of the formula I ##STR00001##
wherein X and Y are independently selected from the group consisting of CR.sup.1R.sup.2R.sup.3, NR.sup.4R.sup.5 and OR.sup.6, wherein R.sup.1 to R.sup.5 are selected from H and essentially hydrocarbon moieties that optionally comprise at least one oxygen, nitrogen or silicon atom, and R.sup.6 is selected from essentially hydrocarbon moieties that optionally comprise at least one oxygen, nitrogen or silicon atom; and, A is an essentially hydrocarbon moiety that optionally comprises at least one oxygen, sulphur, nitrogen or silicon atom, with the proviso that the compound A-CHO is a fragrant aldehyde. The use of these compounds in laundry, household and personal care products confers a long-lasting freshness.

A method of providing a fragrant odour to an application, comprising the addition thereto of at least one compound of the formula I ##STR00001##
wherein X and Y are independently selected from the group consisting of CR.sup.1R.sup.2R.sup.3, NR.sup.4R.sup.5 and OR.sup.6, wherein R.sup.1 to R.sup.5 are selected from H and essentially hydrocarbon moieties that optionally comprise at least one oxygen, nitrogen or silicon atom, and R.sup.6 is selected from essentially hydrocarbon moieties that optionally comprise at least one oxygen, nitrogen or silicon atom; and, A is an essentially hydrocarbon moiety that optionally comprises at least one oxygen, sulphur, nitrogen or silicon atom, with the proviso that the compound A-CHO is a fragrant aldehyde. The use of these compounds in laundry, household and personal care products confers a long-lasting freshness.

The present disclosure provides a catalyst system that is capable of selectively hydrogenating (2,3)/(4,5) and (2,3)/(5,6) dienones with hydrogen gas. Specifically, the present disclosure provides catalysts capable of providing high selectivity for the reduction even in the absence of catalyst poisons such as pyridine, pyrazine, quinoline, and quinoxaline

The present disclosure provides a catalyst system that is capable of selectively hydrogenating (2,3)/(4,5) and (2,3)/(5,6) dienones with hydrogen gas. Specifically, the present disclosure provides catalysts capable of providing high selectivity for the reduction even in the absence of catalyst poisons such as pyridine, pyrazine, quinoline, and quinoxaline

The present invention relates to a process for preparing farnesyl acetone.

The present invention relates to a process for preparing farnesyl acetone.

The invention relates to the use of substances for the production of anions suitable for charge transfer reactions in mass spectrometers, particularly for the fragmentation of multiply positively charged biopolymer ions by electron transfer or for charge reduction by proton transfer. Diketones, particularly -diketones, are proposed as a newly found class of substances which can be used both for the production of radical anions for electron transfer dissociations (ETD) with a high yield of fragment ions and also for the production of non-radical anions for the charge reduction of multiply charged analyte ions by proton transfer reactions (PTR). These substances have favorable properties in terms of their handling and the associated analytical methods: they are largely nontoxic, cover a favorable range of molecular masses, and their volatility means that they can be stored in unheated containers outside of the vacuum system, which facilitates the refilling of the containers.

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and either a supported chromium (VI) catalyst or a supported chromium (II) catalyst are contacted, optionally with UV-visible light irradiation, followed by exposure to an oxidizing atmosphere and then hydrolysis to form a reaction product containing the alcohol compound and/or the carbonyl compound. The presence of oxygen significant increases the amount of alcohol/carbonyl product formed, as well as the formation of oxygenated dimers and trimers of certain hydrocarbon reactants.

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and either a supported chromium (VI) catalyst or a supported chromium (II) catalyst are contacted, optionally with UV-visible light irradiation, followed by exposure to an oxidizing atmosphere and then hydrolysis to form a reaction product containing the alcohol compound and/or the carbonyl compound. The presence of oxygen significant increases the amount of alcohol/carbonyl product formed, as well as the formation of oxygenated dimers and trimers of certain hydrocarbon reactants.