The present invention relates to the field of perfumery. More particularly, it concerns malodor masking compositions and/or ingredients, as well as method for counteracting or masking malodors and perfuming compositions having odor masking properties.

The present invention relates to the field of perfumery. More particularly, it concerns malodor masking compositions and/or ingredients, as well as method for counteracting or masking malodors and perfuming compositions having odor masking properties.

The present invention relates to novel mixtures of cyclopentadecenone isomers, preparation thereof and use thereof as aroma substances, particularly as fragrances, and also aroma substance compositions and agents comprising said mixtures.

The present invention relates to novel mixtures of cyclopentadecenone isomers, preparation thereof and use thereof as aroma substances, particularly as fragrances, and also aroma substance compositions and agents comprising said mixtures.

The present invention relates to compounds of formula ##STR00001## wherein one R group is a hydrogen atom and the other is a hydrogen atom or a C.sub.1-3 alkyl group; and each carbon-carbon double bond of said compound, independently from each other, can be in a configuration Z or E or a mixture thereof;
which are useful perfuming ingredients.

The present invention relates to compounds of formula ##STR00001## wherein one R group is a hydrogen atom and the other is a hydrogen atom or a C.sub.1-3 alkyl group; and each carbon-carbon double bond of said compound, independently from each other, can be in a configuration Z or E or a mixture thereof;
which are useful perfuming ingredients.

According to the present invention, there is provided a catalytic complex comprising a metal, one or more ligands and one or more counterions, wherein said one or more ligands include a non-racemic chiral ligand and wherein said one or more counterions include a triflimide counterion. Also provided are methods of making said catalytic complex and processes for producing chiral compounds which involve the use of said catalytic complex. In addition, the present invention provides compounds of the formula (2) as defined herein. The compounds of formula (2) may be useful as ligands in catalytic complexes.

According to the present invention, there is provided a catalytic complex comprising a metal, one or more ligands and one or more counterions, wherein said one or more ligands include a non-racemic chiral ligand and wherein said one or more counterions include a triflimide counterion. Also provided are methods of making said catalytic complex and processes for producing chiral compounds which involve the use of said catalytic complex. In addition, the present invention provides compounds of the formula (2) as defined herein. The compounds of formula (2) may be useful as ligands in catalytic complexes.