Firmenich Sa

Christian Vial

Roger L Snowden

Karl-Heinrich Schulte-Elte

Herve Pamingle

Claudio Tarchini

Beatrice Baer

Andreas Herrmann

Daniel Reichlin

Jana Pika

Eric C Walborsky

Walter Paget

Christian Chapuis

Peter Fankhauser

Pierre-Alain Blanc

Robert Moretti

Lionel Saudan

Ferdinand Naef

Piero Fantini

Maurus Marty

Alain Charpilloz

Herv&eacute; Pamingle

The present invention relates to compounds of formula (I) that are useful as perfuming ingredients of the fruity type. Formula (I) is in the form of any one of its stereoisomers or of a mixture thereof, wherein Rrepresents a Calkyl or alkenyl group, Rrepresents a methyl or ethyl group, Rrepresents a Calkyl or alkenyl group, and the compound (I) has from 8 to 12 carbon atoms.

Fruity odorant

The present invention concerns the use as perfuming ingredient (of the fruity type) of a compound of formula in the form of any one of its stereoisomers or of a mixture thereof, and wherein Rrepresents a Calkyl or alkenyl group, Rrepresents a methyl or ethyl group, Rrepresents a Calkyl or alkenyl group, and the compound (I) has from 8 to 12 carbon atoms.

The present invention concerns the use of 1-isopropoxy-1-oxopropan-2-yl pivalate, in the form of any one of its stereoisomers or a mixture thereof, as perfuming ingredient to impart odor notes of the floral and fruity type.

1-isopropoxy-1-oxopropan-2-yl pivalate as perfuming ingredient

The present invention concerns the use as perfuming ingredient of a composition of matter comprising at least 94% w/w of 4,6-dimethyl-3-octen-5-ol, and at most 1% w/w of 2-methylpent-2-en-1-ol and 3-ethyl-4-methylhexan-2-one.

Osmanthus odorant

The present invention concerns the use as perfuming ingredient (of the fruity type) of a compound of formula (I) in the form of any one of its stereoisomers or of a mixture thereof, and wherein Rrepresents a Calkyl or alkenyl group, Rrepresents a methyl or ethyl group, Rrepresents a Calkyl or alkenyl group, and said compound (I) has from 8 to 12 carbon atoms. 

The present invention relates to the field of perfumery. More particularly, it concerns the use as perfuming ingredients of certain phenol esters of formula wherein R represents a Cbranched alkyl group or a Clinear or branched alkenyl group or cyclopropyl containing hydrocarbon group. The present invention concerns also the compositions or articles containing such compounds.

Phenol ester as perfuming ingredient

The present invention relates to the field of perfumery and concerns a diether or a 1,3-dioxolane derivative of 1,8a-methano-2,4a,8,8-tetramethyldecahydro-2,3-naphthalenediol and its use as perfuming ingredient. The present invention concerns also the perfuming compositions or perfumed articles associated with the compound.

Perfuming ingredients capable of imparting woody odors

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).

Spiro compounds as perfuming ingredients

A compound of formula wherein the symbol R' represents a linear or branched, unsaturated or saturated hydrocarbon group having from 1 to 5 carbon atoms; R, R, R, Rand Rrepresent, independently of each other, a hydrogen atom, a methyl, an ethyl or a methoxy group; Rand Rrepresent, independently of each other, a hydrogen atom, a methyl, ethyl, n-propyl or iso-propyl group; and wherein Rand R, when taken together with the carbon atoms to which they are bound, may form a six-membered ring, is useful as perfuming ingredient for the preparation of perfuming compositions and perfumed products, to which it imparts odor notes of the floral and indol type without coloring problems in the final product.

Utilization of unsaturated esters as perfuming ingredients

Slow release of fragrant compounds in perfumery using 2-benzoyl benzoates, 2-alkanoyl benzoates or alpha-keto esters

The present invention relates to perfumery of compounds of the general formula

Perfuming ingredients of woody, fruity odor

Optically active esters and their use as perfuming ingredients

A fragrance delivery system which releases fragrant alcohols upon exposure to light. The system comprises 2-benzoyl benzoates of general formulae ##STR1## which can comprise various subtituents R.sub.1 -R.sub.5 as defined in the application and a substituted R* which is the organic part of a fragrant alcohol.

Slow release of fragrant compounds in perfumery using 2-benzoyl

The present invention relates to the use in perfumery of compounds of the general formulae ##STR1## in which R.sup.1 and R.sup.2 are identical or different and represent each a methyl or ethyl group, R.sup.3 represents hydrogen or an alkyl group from C.sub.1 to C.sub.4, linear or branched, and R.sup.4 represents hydrogen, an alkyl group from C.sub.1 to C.sub.4, linear or branched, or an acyl group of formula R.sup.5 C(O)--, R.sup.5 being hydrogen or an alkyl group from C.sub.1 to C.sub.4, linear or branched. The novel odoriferous character of these compounds is the combination of woody with fruity notes. Also described is a synthesis for the preparation of the compounds of formula (I) starting from the compounds of formula (II).

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Geneva, Switzerland

Christian Vial