Abstract: The present invention concerns the use as perfuming ingredient of 4-dimethoxymethyl-1,3-dimethyl-1-cyclohexene in the form of any one of its stereoisomers or a mixture thereof, for instance to impart odor notes of the grapefruit and floral type.

Abstract: The invention relates to a method of use of certain derivatives of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein R1 represents a hydrogen atom, a C1-4 alkyl or alkenyl group, or a (CHR)2OH group, each R being a hydrogen atom or a methyl group; R2 represents a hydrogen atom or a methyl, ethyl or n-propyl group; and R3 represents a hydrogen atom or a methyl group, as perfuming ingredients. The present invention concerns also certain compounds and compositions or articles containing such compounds.

Abstract: The present invention concerns the use as perfuming ingredient of 4-dimethoxymethyl-1,3-dimethyl-1-cyclohexene in the form of any one of its stereoisomers or a mixture thereof, for instance to impart odor notes of the grapefruit and floral type.

Abstract: The invention relates to a method of use of certain derivatives of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein R1 represents a hydrogen atom, a C1-4 alkyl or alkenyl group, or a (CHR)2OH group, each R being a hydrogen atom or a methyl group; R2 represents a hydrogen atom or a methyl, ethyl or n-propyl group; and R3 represents a hydrogen atom or a methyl group, as perfuming ingredients. The present invention concerns also certain compounds and compositions or articles containing such compounds.

Abstract: The present invention relates to certain derivatives of 2-ethyl-4-(2?,2?-dimethyl-3?-alkyl-3?-cyclopenten-1?-yl)-4-penten-1-ol. These compounds possess very interesting perfuming ingredients due to their unusual combination of sandalwood and floral notes. The present invention also concerns the use of such compounds in the perfumery industry as well as the compositions or articles containing such compounds.

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 the use as a perfuming ingredient of 2-methyl-3-hexanone-oxime of formula in which the wavy line represents a bond having a configuration of the type (Z) or (E) or a mixture of the two configurations.

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 the use as a perfuming ingredient of 2-methyl-3-hexanone-oxime of formula 1

Abstract: (1RS,5RS)-5-Methyl-exo-tricyclo[6.2.1.0.sup.2,7 ]undecan-4-one, as well as the compositions which contain a preponderant amount of this compound together with its isomer (1RS,5SR)-5-methyl-exo-tricyclo[6.2.1.0.sup.2,7 ]undecan-4-one, are useful as perfuming ingredients for the preparation of perfuming compositions and perfumed articles, to which they impart aromatic, thujonic and herbaceous odors.

Abstract: Perfuming composition or perfumed article containing as a perfuming ingredient at least one pentadecenolide of formula ##STR1## having a double bond of trans configuration in one of the positions 11 or 12 such as indicated by the dotted lines. Compounds (I) develop musky, animal odor notes, reminiscent of natural musk.

Abstract: A process for the preparation of 15-pentadecanolide, wherein bis-(13-oxabicyclo[10.4.0]hexadec-12-yl)peroxide is subjected to a thermal treatment in an organic solvent, eventually followed by hydrogenation of the resulting reaction product, which treatment is carried out in an organic solvent having a boiling point comprised between about 170.degree. and 250.degree. C.