The present application relates to perfume raw materials, perfume delivery systems and consumer products comprising such perfume raw materials and/or such perfume delivery systems, as well as processes for making and using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials and compositions, including the delivery systems, disclosed herein expand the perfume communities' options as such perfume raw materials can provide variations on character and such compositions can provide desired odor profiles.

Described herein are properfume compounds. Also described herein is a method to release a compound being a ketone or aldehyde, a formate ester and/or an alcohol by exposing a properfume compound to an environment wherein it is oxidized. Also described herein is a perfuming composition and a perfume consumer product comprising at least one properfume compound.

A malodor reducing composition is provided. The composition includes a perfume mixture including (a) at least one odor-reducing material; and (b) at least one N-heterocycle selected from an aromatic N-heterocyclic moiety and N,S-heterocyclic moiety. The at least one odor-reducing material exhibits an Odor Value (OV) having a common decimal logarithm (log.sub.10OV) of greater than about 5.5.

A freshening composition is provided. The freshening composition includes about 0.02 wt. % to about 1.0 wt. %, based on the weight of the composition, of a sulfur-containing pro-perfume. The freshening composition further includes about 0.2 wt. % to about 1.4 wt. %, based on the weight of the composition, of a perfume mixture, the perfume mixture comprising at least one perfume material selected from the group consisting of: 3-(1,3-Benzodioxol-5-yl)-2-methylpropanal, canthoxal, vanillin, ethyl vanillin, citral, ligustral, cinnamic aldehydes, and combinations thereof. The freshening composition also includes a carrier.

The aspects presented herein provide fragrance compositions having an olfacive profile that changes with time, wherein the fragrance compositions comprise at least two contrasting perfume accords that provide an olfactory modulating effect, wherein the perfume formulation delivers a desirable scent with increased perceived intensity and improved longevity of perception.

The present invention relates to novel compounds of formula (I)

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as well as mixtures comprising or consisting of compounds of formula (I). Furthermore, the present invention relates to a process for the preparation of the compounds of formula (I) and to the use of the compounds of formula (I) as a perfuming ingredient, in particular as a lily of the valley perfuming ingredient. Ultimately, the present invention relates to perfume preparations and perfumed products or consumer goods comprising at least one of the compounds of formula (I).

A compound is provided of Formula (I), wherein R.sup.1 represents a C.sub.3 to C.sub.20 hydrocarbon group derived from an alcohol of formula R.sup.1OH, from a formate of formula R.sup.1OCH═O, or a cinnamyl aldehyde of Formula (II) wherein a compound of Formula I is capable of releasing a compound, when oxidized, selected from the group consisting of a fragrant alcohol of formula R.sup.1OH, a fragrant formate ester of formula R.sup.1OCH=0 and aryl aldehyde of Formula (III), wherein R.sup.2 is, independently, hydrogen atom, hydroxyl group, optionally substituted C.sub.1-C.sub.6 alkyl group, C.sub.1-C.sub.6 alkoxy group, or -0(C=0)CH(CH3).sub.2 wherein any two of R.sup.2 may form an optionally substituted 5 or 6 membered ring. The compounds are useful for example as a precursor for the prolonged delivery or release of fragrant compounds such as fragrant alcohols, fragrant aldehydes or fragrant formates. ##STR00001##

The present invention relates to the field of perfumery. More particularly, it concerns short chain β-sulfur carbonyl moieties capable of liberating an active molecule, such as a perfuming α,β-unsaturated ketone or aldehyde. The present invention concerns also the use of said compounds in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's compounds.

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

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′).

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