Described herein is a compound of formula (I)

##STR00001##

in the form of any one of its stereoisomers or a mixture thereof, and wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently from each other, represent a hydrogen atom or a C.sub.1-2 alkyl group. The use of compound of formula (I) as perfuming ingredients of floral type and the compounds as part of a perfuming composition or of a perfuming consumer product are also described.

Described herein is a compound of formula (I) ##STR00001##
in the form of any one of its stereoisomers, regioisomers or a mixture thereof. The use of compound of formula (I) as perfuming ingredients of floral type and of these compounds as part of a perfuming composition or of a perfuming consumer product are also described.

A method of extending the olfactory effect of a fragrance added to a washed item, comprising the addition to the wash of the fragrance, the fragrance comprising at least one compound selected from the group consisting of ethyl (Z)-2-acetyl-4-methyltridec-2-enoate; ethyl N,S-bis(4-oxo-4-(2,6,6-trimethylcyclohex-3-en-1-yl)butan-2-yl)cysteinate; 4-(dodecylthio)-4-methylpentan-2-one; 1-butoxy-3-((1E,4Z)-hepta-1,4-dien-1-yl)benzene; and 2-ethoxy-4-((1E,4Z)-hepta-1,4-dien-1-yl)phenol.

A washed item in which the washing utilized at least one of the compounds and which was then stored, for example, in a cupboard, closet or drawer, is found to have retained a substantial proportion of the fragrance, and for a longer time

Pro-fragrances may have the formula (I) as disclosed herein. Compositions may include the pro-fragrances, such as a laundry product, a home care product, and an insect repellant. A method for preparing the compound of formula (I) are also disclosed. Such pro-fragrances increase the longlastingness of a fragrance, the stability of a fragrance, and the adhesion of a fragrance.

Described herein are compounds including at least one β-thio carbonyl or nitrile moiety capable of liberating an active molecule selected from an α,β-unsaturated ketone, aldehyde or nitrile. Also described herein are methods of using said compounds in perfumery as well as perfuming compositions or perfumed articles including the compounds. The compounds are represented by formula (I) where: a) m represents an integer from 1 to 6; b) Pro represents a hydrogen atom or a group susceptible of generating an odoriferous α,β-unsaturated ketone, aldehyde or nitrile and is represented by the formulae (II) or (II′) in which the wavy line indicates the location of the bond between said Pro and the sulfur atom S; and at least one of the Pro groups is of the formula (II) or (II′).

##STR00001##

The present invention primarily relates to the use of 3-(4-isobutyl-2-methyl-cyclohexyl)pro-panal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-meth-ylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-1-yl)propanal as perfuming ingredients. Moreover, the present invention relates to perfume compositions and perfumed products comprising the before mentioned perfuming ingredients. Still more particularly, the invention relates to a method for producing said perfumed products and a method of imparting and/or increasing i) floral and/or ii) green and/or iii) lily of the valley odor characteristics to perfumed products. This invention also relates to 3-(4-isobutyl-2-methyl-cyclohexyl)propanal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-methylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-yl)propanal and a process for the preparation of said compounds.

The present invention relates to the use of 1-(4,4-dimethylcyclohexyl)ethanone, 1-(4,4-dimethylcyclohex-1-en-1-yl)ethanone, 1-(4,4-dimethylcyclohexyl)ethanol, 1-(4,4-dimethylcyclohexyl)ethyl acetate and 1-(2-hydroxy-4,4-dimethylcyclohexyl)ethanone as a fragrance substance, in particular with a flowery and/or fruity olfactory characteristic. The present invention further relates to fragrance compositions and perfumed products comprising the compounds listed above. The present invention also relates to a method producing perfumed products and a method producing 1-(4,4-dimethylcyclohexyl)ethanol or 1-(4,4-dimethylcyclohexyl)ethyl acetate. Further, the invention relates to the compounds 1-(4,4-dimethylcyclohexyl)ethyl acetate, 1-(4,4-dimethylcyclohexyl)ethanol and 1-(2-hydroxy-4,4-dimethylcyclohexyl)ethanone.

The various aspects presented herein relate to methods for the reduction, prevention and/or inhibition of the oxidation of perfume ingredients, formulated perfumes, formulated body care products, formulated skin care products, formulated homecare products, essential oils, food raw materials, formulated food products and natural extracts.

The present application relates to fragrance compositions comprising perfume raw materials that resist fragrance habituation, and methods for making and using the fragrance compositions.

A compound according to formula I in the form of any one of its stereoisomers or a mixture thereof

##STR00001## wherein is indicating a carbon-carbon single or double bond, with the provision that the compound has one carbon-carbon double bond or two isolated or conjugated carbon-carbon double bonds, and R.sub.1 to R.sub.5 are independently from each other selected from H or Me, with the proviso that the compound is not 3-(4-(2-hydroxy-2-methylpropyl)cyclohex-1-en-1-yl)propanal, and its use as fragrance.