Abstract: The present invention relates to the field of perfumery and concerns the use as perfuming ingredient of ketones of formula wherein n represents 0, 1 or 2, m represents 0, 1 or 2, the dotted lines represent only single bonds or one double bond and two single bonds, R1 represents a hydrogen atom or a methyl or ethyl group, said R1 group being located at any of the position of the cyclic moiety, R2 represents a C1-C3 O-alkyl or O-alkenyl group or a substituted or unsubstituted ethylene or cyclopropyl group. Said compounds are useful to impart a clean and natural fruity, pineapple odor type. The present invention concerns also the compositions or articles containing said compounds (I) as well as some of said compounds (I).

Abstract: The present invention concerns compounds of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein each R, independently from each other, represents a hydrogen atom or a methyl or ethyl group provided that at least one of said R groups represents a methyl or ethyl group, and R1 represents a methyl or ethyl group. Said compounds are useful in perfumery to impart odor notes of the woody, balsamic type.

Abstract: The present invention concerns compounds of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein one dotted line represents a carbon-carbon single or double bond and the others a carbon-carbon single bond; each R, independently from each other, represents a hydrogen atom or a methyl or ethyl group provided that at least one of said R groups represents a methyl or ethyl group; and R1 represents a methyl or ethyl group; and their use in perfumery to impart odor notes of the woody type having cedar, ambery, patchouli and/or rooty aspect.

Abstract: The present invention concerns a process for the preparation of a compound of formula in the form of any one of its stereoisomers or mixtures thereof, wherein R represents a C1-C7 alkyl or alkenyl group, a C7-C10 benzyl group optionally substituted by one to three C1-3 alkyl or alkoxy groups, a C1-C7 acyl group or an alkoxycarbonyl of formula C(?O)OR?, wherein R? is a C1-C7 alkyl group.

Abstract: The present invention concerns a process for the preparation of a compound of formula in the form of any one of its stereoisomers or mixtures thereof, wherein R represents a C1-C7 alkyl or alkenyl group, a C7-C10 benzyl group optionally substituted by one to three C1-3 alkyl or alkoxy groups, a C1-C7 acyl group or an alkoxycarbonyl of formula C(?O)OR?, wherein R? is a C1-C7 alkyl group.

Abstract: The present invention concerns a process for the preparation of a compound of formula (I) in the form of any one of its stereoisomers or mixtures thereof, wherein R represents a C2-C10 group of formula CORa wherein Ra is an alkyl or alkenyl group optionally comprising one or two ether functional groups or is a phenyl or benzyl group optionally substituted by one to three alkyl, alkoxyl, carboxyl, acyl, amino or nitro groups or halogen atoms.

Abstract: The present invention concerns a process for the preparation of a compound of formula (I) in the form of any one of its stereoisomers or mixtures thereof, and wherein R represents a C2-C10 group of formula CORa wherein Ra is an alkyl or alkenyl group optionally comprising one or two ether functional groups or is a phenyl or benzyl group optionally substituted by one to three alkyl, alkoxyl, carboxyl, acyl, amino or nitro groups or halogen atoms. The invention concerns also the use of compound (I) for the synthesis of ?-santalol or of derivatives thereof.

Abstract: The present invention concerns compounds of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein one dotted line represents a carbon-carbon single or double bond and the others a carbon-carbon single bond; each R, independently from each other, represents a hydrogen atom or a methyl or ethyl group provided that at least one of said R groups represents a methyl or ethyl group; and R1 represents a methyl or ethyl group; and their use in perfumery to impart odor notes of the woody type having cedar, ambery, patchouli and/or rooty aspect.

Abstract: The present invention relates to 1-(5-ethyl-5-methyl-1-cyclohexen-1-yl)-4-penten-1-one and its use as perfuming ingredient.

Abstract: A method to confer, enhance, improve or modify the odor properties of a perfuming composition or of a perfumed article by adding to the composition or article an effective amount of at least one compound of formula I: wherein n represents 0, 1 or 2; m represents 0, 1 or 2; the dotted lines represent only single bonds or one double bond and two single bonds; R1 represents a hydrogen atom or a methyl or ethyl group, and R2 represents an OR3 group, R3 representing a C1-C3 alkyl or alkenyl group; a group of formula CR4?C(R4)2, or a group of formula with R4 representing a hydrogen atom or a methyl or ethyl group. These compounds impart a clean and natural fruity, pineapple odor type to the perfuming compositions or perfumed articles to which they are added.

Abstract: The present invention concerns a process for the preparation of a compound of formula (I) in the form of any one of its stereoisomers or mixtures thereof, and wherein R represents a C2-C10 group of formula CORa wherein Ra is an alkyl or alkenyl group optionally comprising one or two ether functional groups or is a phenyl or benzyl group optionally substituted by one to three alkyl, alkoxyl, carboxyl, acyl, amino or nitro groups or halogen atoms. The invention concerns also the use of compound (I) for the synthesis of ?-santalol or of derivatives thereof.

Abstract: The present invention concerns a process for the preparation of a compound of formula (I) in the form of any one of its stereoisomers or mixtures thereof, wherein R represents a C2-C10 group of formula CORa wherein Ra is an alkyl or alkenyl group optionally comprising one or two ether functional groups or is a phenyl or benzyl group optionally substituted by one to three alkyl, alkoxyl, carboxyl, acyl, amino or nitro groups or halogen atoms.

Abstract: A method to confer, enhance, improve or modify the odor properties of a perfuming composition or of a perfumed article by adding to the composition or article an effective amount of at least one compound of formula I: wherein n represents 0, 1 or 2; m represents 0, 1 or 2; the dotted lines represent only single bonds or one double bond and two single bonds; R1 represents a hydrogen atom or a methyl or ethyl group, and R2 represents an OR3 group, R3 representing a C1-C3 alkyl or alkenyl group; a group of formula CR4?C(R4)2, or a group of formula with R4 representing a hydrogen atom or a methyl or ethyl group. These compounds impart a clean and natural fruity, pineapple odor type to the perfuming compositions or perfumed articles to which they are added.

Abstract: The present invention relates to 1-(5-ethyl-5-methyl-1-cyclohexen-1-yl)-4-penten-1-one and its use as perfuming ingredient.

Abstract: A compound and a method to confer, enhance, improve or modify the odor properties of a perfuming composition or of a perfumed article, to confer a green allylic, glycolate and fruity-pineapple odor, by adding the compound thereto. The compound has formula (I): wherein the dotted line represents a carbon-carbon single bond or a carbon-carbon double bond; one R1 represents a hydrogen atom and the other represents a hydrogen atom or a methyl or ethyl group; X representing a C?CH2 or C?CHCH3 group or a CHR2 group, each R2 representing a hydrogen atom or a methyl or ethyl group; and R3 represents a a group of formula CR4?C(R4)2, or a group of formula each R4 representing a hydrogen atom or a methyl or ethyl group. The compound is in the form of a pure enantiomer or a mixture thereof.

Abstract: A compound and a method to confer, enhance, improve or modify the odor properties of a perfuming composition or of a perfumed article, to confer a green allylic, glycolate and fruity-pineapple odor, by adding the compound thereto. The compound has formula (I): wherein the dotted line represents a carbon-carbon single bond or a carbon-carbon double bond; one R1 represents a hydrogen atom and the other represents a hydrogen atom or a methyl or ethyl group; X representing a C?CH2 or C?CHCH3 group or a CHR2 group, each R2 representing a hydrogen atom or a methyl or ethyl group; and R3 represents a a group of formula CR4?C(R4)2, or a group of formula each R4 representing a hydrogen atom or a methyl or ethyl group. The compound is in the form of a pure enantiomer or a mixture thereof.

Abstract: The present invention relates to the field of perfumery and concerns the use as perfuming ingredient of ketones of formula wherein n represents 0, 1 or 2, m represents 0, 1 or 2, the dotted lines represent only single bonds or one double bond and two single bonds, R1 represents a hydrogen atom or a methyl or ethyl group, said R1 group being located at any of the position of the cyclic moiety, R2 represents a C1-C3 O-alkyl or O-alkenyl group or a substituted or unsubstituted ethylene or cyclopropyl group. Said compounds are useful to impart a clean and natural fruity, pineapple odor type. The present invention concerns also the compositions or articles containing said compounds (I) as well as some of said compounds (I).

Abstract: The present invention relates to the field of organic synthesis. More particularly it provides a process for making aromatic non-conjugated enol esters or enol ethers from an aromatic compound or moiety and a protected enal compound or moiety, such as an acetal or an acylal. The reaction is promoted by a salt of formula MX1-4, M representing a transition metal such as Zn or Fe and X representing a mono-anion, or by BY3, wherein Y represents a fluoride or a phenyl group optionally substituted.

Abstract: The present invention relates to the field of organic synthesis. More particularly it provides a process for making aromatic non-conjugated enol esters or enol ethers from an aromatic compound or moiety and a protected enal compound or moiety, such as an acetal or an acylal. The reaction is promoted by a salt of formula MX1-4, M representing a transition metal such as Zn or Fe and X representing a mono-anion, or by BY3, wherein Y represents a fluoride or a phenyl group optionally substituted.

Abstract: The present invention relates to a process for making indenol esters or ether from an ?-substituted cinnamic aldehyde derivative such as an acetal or an acylal. Said reaction is promoted by the use of strong mineral acids, sulphonic acids, acidic zeolites or Lewis acids.