Abstract: Described are spiroalkyl- and -alkenylketones and esters thereof, a method for their production and fragrance compositions comprising them.

Abstract: The present application relates to perfume raw materials, perfumes, perfume delivery systems and consumer products comprising such perfume raw materials, perfumes and/or such perfume delivery systems, as well as processes for making and/or using such perfume raw materials, perfume delivery systems and consumer products. Such perfume raw materials, perfumes, perfume delivery systems and consumer products can reduce the impact of certain harsh odours.

Abstract: Perfume compositions effective against urine malodor and having a low odor, comprise between 20% and 50% of perfume ingredients comprising at least 15% by-weight of N-ethyl-N-(3-methylphenyl) propanamide.

Abstract: The present invention is directed to novel fragrance compounds and their unexpected advantageous use in enhancing, improving or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the compounds, wherein the compounds are represented by the following formula: wherein the dotted line represents a single or double bond, and R is selected from the group consisting of propyl, butyl, and pentyl.

Abstract: The present invention is directed to novel methods for production of 5-epi-?-vetivone, 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethylspiro[4.5]deca-1,6-dien-8-one, which are useful for their fragrant qualities. Provided are methods for production of premnaspirodiene from a terpene substrate, methods for production of 5-epi-?-vetivone from premnaspirodiene as starting material, and methods for production of 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one from premnaspirodiene as starting material.

Abstract: The present invention relates to novel compounds and their use in fragrance compositions. Novel 3.2.

Abstract: The present invention relates to novel compounds and their use in fragrance compositions. Novel 3.2.

Abstract: The present invention primarily relates to the use of dioxolanes of the following Formula (I) as fragrance and/or flavoring substances, certain perfume and/or flavoring compositions comprising these dioxolanes and corresponding perfumed and/or flavored items. The present invention also relates to a method for producing the dioxolanes of Formula (I) and certain new dioxolanes according to Formula (I).

Abstract: The present invention relates to novel compounds and their use in fragrance compositions. Novel 3.2.

Abstract: The present invention pertains to a method of counteracting a malodor by introducing a malodor counteracting effective amount of a novel 3.2.

Abstract: Disclosed are substituted 2-oxaspiro[5.5]undec-8-ene derivatives of formula (I) and their use as odorants. This disclosure relates furthermore to a method of their production and flavour and fragrance compositions comprising them.

Abstract: The present invention relates to novel compounds and their use in fragrance compositions. Novel 3.2.1-bicyclo-octene and -octane compounds of the present invention are represented by formula: wherein R is selected from the group consisting of hydrogen, acetate, carbonate monomethyl ester, and allyloxy; and wherein the broken line represents a single or double bond.

Abstract: The present invention relates to the field of perfumery. More particularly, it concerns co-polymers, derived from a maleic anhydride derivative and a ethylenic derivative, comprising at least one ?-oxy or ?-thio carbonyl moiety capable of liberating an active molecule such as, for example, an ?,?-unsaturated ketone, aldehyde or carboxylic ester. The present invention concerns also the use of polymers or co-polymers in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's compounds.

Abstract: The present invention relates to a spiroheterocycle derivative which is a useful perfuming ingredient. Furthermore, the present invention concerns also the compositions or articles containing this compound.

Abstract: Described are spiroalkyl- and -alkenylketones and esters thereof, a method for their production and fragrance compositions comprising them.

Abstract: The present invention is directed to novel methods for production of 5-epi-?-vetivone, 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one, which are useful for their fragrant qualities. In one embodiment the present invention describes a method for production of 5-epi-?-vetivone by the use of premnaspirodiene as starting material. In another embodiment the present invention describes a method for production of 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-2,6-dien-8-one and 2-isopropyl-6,10-dimethyl-spiro[4.5]deca-1,6-dien-8-one by the use of premnaspirodiene as starting material. In yet another embodiment the present invention describes a novel method for production of premnaspirodiene from a terpene substrate. Use of the fragrant components or any composition containing the component can be advantageously employed in the perfumery industry.

Abstract: The present invention is directed to the fragrance compounds and their intermediates and a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount wherein the dotted line represents a possible single or double bond; wherein R is equal to a C3-C7 hydrocarbon moieties R1 and R2 together can be selected from the group consisting of oxygen and may form a closed ring structure represented by

Abstract: Described are spirocyclic ketols of formula (I) wherein n and A have the same meaning as given in the description. Also disclosed is a method for their production and flavour and fragrance compositions containing them.

Abstract: Perfume compositions effective against urine malodour and having a low odour, comprise between 20% and 50% of perfume ingredients comprising at least 15% by-weight of N-ethyl-N-(3-methylphenyl) propanamide.

Abstract: Perfume compositions comprise between 10% and 30% in total by weight of perfume ingredients selected from two groups, Group A, Group B, with the provisos that over 5% but less than 15% of the perfume composition must comprise Group A ingredients, and for compositions comprising less than 10% of Group A ingredients the agregate percentage of Group B ingredients present must be at least equal to the expression 2*/10-A%) where A% is the total percentage of Group A ingredients in the composition.

Abstract: The present invention a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the following compound: wherein m is 1 or 2; and if m is 1, which provides a five-membered dioxaspiro ring, n is an integer from 0 to 4, and the methyl group in the dioxaspiro ring is independently located in the 2 and/or 3 positions of the dioxaspiro ring; or if m is 2, which provides a six-membered dioxaspiro ring, n is an integer from 0 to 6, and the methyl group in the dioxaspiro ring is independently located in the 2, 3, and/or 4 positions of the dioxaspiro ring.

Abstract: The present invention a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the following compound: wherein m is 1 or 2; and if m is 1, which provides a five-membered dioxaspiro ring, n is an integer from 2 to 4, and the methyl group in the dioxaspiro ring is independently located in the 2 and/or 3 positions of the dioxaspiro ring; or if m is 2, which provides a six-membered dioxaspiro ring, n is an integer from 0 to 6, and the methyl group in the dioxaspiro ring is independently located in the 2, 3, and/or 4 positions of the dioxaspiro ring.

Abstract: The present invention a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the following compound: wherein m is 1 or 2; and if m is 1, which provides a five-membered dioxaspiro ring, n is an integer from 2 to 4, and the methyl group in the dioxaspiro ring is independently located in the 2 and/or 3 positions of the dioxaspiro ring; or if m is 2, which provides a six-membered dioxaspiro ring, n is an integer from 0 to 6, and the methyl group in the dioxaspiro ring is independently located in the 2, 3, and/or 4 positions of the dioxaspiro ring.

Abstract: The present invention a method of improving, enhancing or modifying a fragrance formulation through the addition of an olfactory acceptable amount of the following compound: wherein m is 1 or 2; and if m is 1, which provides a five-membered dioxaspiro ring, n is an integer from 0 to 4, and the methyl group in the dioxaspiro ring is independently located in the 2 and/or 3 positions of the dioxaspiro ring; or if m is 2, which provides a six-membered dioxaspiro ring, n is an integer from 0 to 6, and the methyl group in the dioxaspiro ring is independently located in the 2, 3, and/or 4 positions of the dioxaspiro ring.

Abstract: The present invention relates to a spiroheterocycle derivative which is a useful perfuming ingredient. Furthermore, the present invention concerns also the compositions or articles containing this compound.

Abstract: Described are substituted spiro[bornyl-2,4?-(1,3-dioxanes)], a method for their production and fragrance compositions comprising them.

Abstract: The present invention relates to substituted cyclopentanone derivatives and their use as fragrance chemicals suitable for incorporation in fine fragrances, cosmetics, toiletries and related applications.

Abstract: The present invention relates to the perfumery industry. It concerns more particularly an alcohol, ester, ether or ketone derivative having a spiro-type skeleton, the latter being substituted by short alkyl groups. The invention also relates to the use of the invention compounds as perfuming ingredients, able to impart a woody and/or aromatic, as well as to the perfumed articles or perfuming compositions comprising as active ingredient a compound of formula (I).

Abstract: The present invention relates to hexahydroindan acetal and ketal compounds and their use as fragrance chemicals suitable for incorporation in fine fragrances, cosmetics, toiletries and related applications.

Abstract: The compound according to the formula set forth below and the use of the compound in creating fragrances, and scents in items such as perfumes, colognes and personal care products is disclosed.

Abstract: The present invention relates to the use as perfuming ingredient of 1-oxaspiro[2.11]tetradecane, as well as to the perfuming compositions or perfumed articles containing said compound.

Abstract: Cyclic isolongifolenyl ethers of the general formula A, where wavy lines mean &agr;- and &bgr;-configuration, and R is the following radicals. R=Me, Et, Pr, iso-Pr, Bu, sec-Bu, iso-Bu, tert-Bu. These isolongifolenyl ethers are excellent fragrances and can, in particular, be used as a constituent of fragrance mixtures or perfume oil for the perfuming of cosmetic or technical consumer goods. Also described are processes for the preparation of said cyclic isolongifolenyl ethers.

Abstract: The present invention relates to the perfume and flavor industry. It concerns more particularly the use as perfuming or flavoring ingredient of 6-methyl-7-oxa-1-thia-4-azaspiro[4.4]nonane, of formula The invention also relates to the perfumed or flavored consumer products or perfuming or flavoring compositions containing as active ingredient a compound of formula (I).

Abstract: The compound according to the formula set forth below where A is B is or A and B together form the ring structure and X, R′ and R are independently H and CH3 and m=0 or 1. and the use of the compound in creating fragrances, and scents in items such as perfumes, colognes and personal care products is disclosed.

Abstract: The present invention relates to the perfume and flavor industry. It concerns more particularly the use as perfuming or flavoring ingredient of 6-methyl-7-oxa-1-thia-4-azaspiro[4.

Abstract: Described are bicyclic lactones, both fused ring lactones defined according to the generic structure: and spiro lactones defined according to the generic structure: uses thereof in augmenting, enhancing or imparting aromas in or to perfume compositions, perfumed articles, colognes and perfumed polymers; processes for preparing such bicyclic lactones and intermediates therefor. In the structure: Z is one of the moieties: one of R1 or R3 is methyl and the other is hydrogen; and R4, R5, R6, R7, R8 and R9 are hydrogen or nonadjacent C1-C3 alkyl.

Abstract: A method of reducing or preventing body malodour by topically applying to human skin perfume components capable of inhibiting the producation of odoriferous steroids by microorganisms on the skin. The perfume components are capable of inhibiting bacterial 4-ene reductase and/or 5&agr;-reductase.

Abstract: 2-Alkoxydecahydro-2,3a,4,4,7-pentamethyl-3,7a-methano-7aH-indeno[5,6-b]furans are valuable novel woody fragrances for the preparation of perfume oils.

Abstract: The present invention relates to a process for etherification of a benzyl type alcohol, to the products obtained and to their applications, in particular in the perfumery field. The etherification process of the invention consists of reacting a benzyl type alcohol with another alcohol in the presence of a catalyst, characterized in that the etherification reaction is carried out in the presence of an effective quantity of a zeolite.

Abstract: The invention relates to bicyclic aldehydes and ketones of formula (I): wherein n is 1 or 2; R1 and R4 are independently H or CH3; and R2 and R3 are independently H, CH3 or CH2CH3 The invention also provides odorant compositions containing at least one compound of formula (I). A process for the manufacture of R1-methyl substituted compounds of formula (I) having a bridgehead-positioned double bond, as well as intermediates thereof is also provided.

Abstract: The invention relates to compounds of the general formula in which R1 to R7 are, independently, H, methyl or ethyl, R8+R9 together form methylene (—CH2—) or a single bond, or R1+R2 together form —(CH2)n—, with n being 3 or 4, or R3+R5 or R5+R7 represent methylene or a single bond; and the presence of at least one cyclopropane ring in the molecule is compulsory and the side chain can be saturated or contains one double bond in position &agr;,&bgr; or &bgr;,&ggr;, a process for the manufacture of these compounds, compounds used to perform the process and the use of these compounds as an odorant or as an ingredient of an odorant composition.

Abstract: Spirocyclic compounds of the general formula (I) are provided which are powerful odorants. Compositions which include these compounds are also provided. They can be used, for instance, in perfumery.

Abstract: The cyclic acetals of the 1,5-dioxaspiro?4,5!decane type which are substituted in the dioxane ring with 1-4 alkyl groups have organoleptic properties which make them useful as a fragrance materials. The alkyl groups each have 1-4 carbon atoms with the total number of carbon atoms in all alkyl groups together not exceeding 7. Preferably the cyclic acetals should have at least one alkyl group in the 4 position. A particularly preferred cyclic acetal is 3,3-dimethyl-4-isopropyl-1,5-dioxaspiro?4,5!decane.

Abstract: Compounds of the formula: ##STR1## in which R.sup.1, R.sup.2 represent H or methyl and R.sup.3, R.sup.4 represent H, C.sub.1-4 alkyl or C.sub.2-4 alkenyl; R.sup.3 and R.sup.4 together can also be butylidene are interesting camphor derivatives. They exhibit valuable odor characteristics.

Abstract: The present invention is concerned with novel odorant compositions which are characterized by a content of cyclic compounds of the formula ##STR1## From this group of compounds the compounds I' with the meanings b), d), f) and g) are novel compounds.

Abstract: Novel odorant compositions which are characterized by a content of one or more compounds selected from the group consisting of tetrahydrofurans of structures 1 or 2, or tetrahydropyrans of structure 3. ##STR1## wherein R can be an acyclic, where acyclic refers to a chain of at least four carbon atoms substituted with at least three methyl groups in the chain, carbocyclic, where carbocyclic refers to a ring of 5-8 carbon atoms, and with at least two methyl groups on the ring, or bicyclic where bicyclic refers to two carbon rings, each ring having between 5-8 carbon atoms fused together, substituted with at least two methyl groups, and where R.sub.1 .dbd.CH.sub.3, or higher alkyl group, R.sub.2 .dbd.H, CH.sub.3, or higher alkyl group, R.sub.3 .dbd.H, or CH.sub.3, R.sub.4 and R.sub.5 .dbd.H, CH.sub.3, or higher alkyl group.

Abstract: Described are polyhydrodimethylnaphthalene spirofuran derivatives defined according to the generic structure: ##STR1## wherein the dashed line represents a carbon-carbon single bond or a carbon-carbon double bond a process for preparing same and uses thereof in augmenting, enhancing or imparting an aroma in or to perfume compositions, colognes and perfumed articles including but not limited to solid or liquid, anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles and hair preparations.

Abstract: Spiro[5.7]tridec-1-ene-3-one is a useful perfuming ingredient for the preparation of perfuming bases and perfumed articles to which it imparts odor notes of the costus, animal and leather type.

Abstract: Cycloalkylidene derivatives of the general formulae Ia to Ic ##STR1## where the dashed line is a possible additional chemical bond, the radicals R.sup.1 are identical or different C.sub.1 -C.sub.4 -alkenyl groups, R.sup.2 and R.sup.3 are each methyl or ethyl, R.sup.4 is hydrogen or one of the radicals R.sup.1, X is oxygen, methylene or a chemical bond, m is from 0 to 3 or, when X is methylene, is from 1 to 3, or, when X is methylene and R.sup.1 is methyl, is from 2 to 3 and n is from 0 to 3, are used as fragrance materials.

Abstract: Spiranic lactone of formula ##STR1## possesses useful fragrance properties and it can be used advantageously as fragrance ingredient in various consumable materials. It develops warm, spicy, lactonic and coumarinic odor notes.