Symrise Ag

Symrise Gmbh & Co Kg

Johannes Panten

Oskar Koch

Bernd Hölscher

Hanns Hatt

Günter Gisselmann

Thomas Obrocki

Patrick Foley

Horst Surburg

Yonghua Yang

Walter Kuhn

Erich Dilk

Tobias Vössing

Wilhelm Pickenhagen

Dietmar Schatkowski

Sabine Widder

Marcus Eh

Jan Looft

Vijayanand Chandrasekaran

Angela Koeckritz

Peter Esser

Stefan Lambrecht

Bernd Hoelscher

Egon Oelkers

Reinhard Eckelt

Edison Diaz Gomez

Pierre Kurzenne

Marcus Eggers

Marco Singer

Christopher Sabater

Mathias Werner

Pascal Sillon

Karl-Georg Fahlbusch

Klaus Schafer

Atia Hanan

Hartmut Struwe

Heinz-Jürgen Bertram

Joachim Correll

Kaveh Ashtibaghaei

Ivonne Wallrabenstein

Willi Wiedmann

The present invention relates to a method for the stereo selective production of a trans-diol or a cis-diol or a hydroxyketone comprising the step(s) (i) conversion of a trans-diol or a cis-diol to a hydroxyketone and/or (ii) conversion of a hydroxyketoneto a cis-diol or a trans-diol, catalyzed by an enzyme, which is encoded by a nucleic acid sequence of SEQ ID NO: or wherein the enzyme comprises an amino acid sequence of SEQ ID NO: 2. The present invention also relates to the use of an enzyme encoded by a nucleic acid sequence of SEQ ID NO: 1 or wherein the enzyme comprises an amino acid sequence of SEQ ID NO: 2 for the conversion of a trans-diol to a cis-diol or for the conversion of a trans-diol or a cis-diol to a hydroxy ketone and/or the conversion of a hydroxyketone to a trans-diol or a cis-diol.

Biotechnological production of diols

A method for producing slcareolide comprising the following steps: (a) providing sclareol as starter material; (b) contacting the starter material sclareol with ozone in air or oxygen as the sole oxidant in an acidic medium.

Method for producing sclareolide

A fragrance mixture and its applications, in particular perfume oils, cosmetic agents, application agents or washing and cleaning agents, containing a sensory effective amount of (i) (E)-2-methyl-but-2-endicarboxylic acid diethyl ester, (ii) (Z)-2-methyl-but-2-endicarboxylic acid diethyl ester or (iii) 2-methylenebutanedicarboxylic acid diethyl ester and mixtures thereof and analogous esters derived from these compounds and mixtures.

Fragrance mixture

The present invention primarily relates to the use of one or more compound(s) of formula (I) as fragrance, wherein R is methyl or ethyl and Ris H, methyl or ethyl. The invention further relates to new fragrance compositions comprising one or more compound(s) of formula (I), as described herein, the use of said fragrance compositions, perfumed articles comprising said fragrance compositions, and various methods of perfuming said articles or for imparting, modifying and/or enhancing certain olfactory notes.

Ambergris and/or indole-like compositions of odoriferous substances

Norlimbanol in general and particularly its isomer mixture Timberol&#xae;, an amber-woody fragrance, is able to specifically inhibit the trimethylamine-induced h TAAR5 activation up to 96%. Moreover, human psychophysical data showed that the presence of Timberol&#xae; increases the olfactory detection threshold for the characteristic fishy odor of trimethylamine by almost one order of magnitude.

Method for inhibiting or masking fishy odours

The present invention relates to a method for producing a substituted alkyl cycloalkanone, comprising the alkylation of a cycloalkanone with an alkene derivative in the presence of a metal oxide, where n is 2 to 20, m is 0 to 10, and R is a functional group.

Method for preparing substituted alkyl cycloalkanones

Proposed is a method for evaluating the scent performance of perfumes or perfume mixtures, wherein at least one odorants is brought into contact with an olfactory receptor selected from the group consisting of OR1B1, OR2L8, OR4X2, OR4C16, OR5L1, OR8B4, OR8D2, OR10A6, OR10C1, OR12D2, OR524, OR4E2, OR4P4, OR4K2, OR4C3, OR5I1, OR10Q1 and measuring the response of the receptor.

Method for evaluating the scent performance of perfumes or perfume mixtures

A description is provided of the use of certain carboxylic acid esters as a fragrance substance, preferably as a fragrance substance for conveying, modifying and/or intensifying one, two or all the fragrance notes fruity and green, preferably both the fragrance notes fruity and green.

Use of carboxylic acid esters as a fragrance substance

Compounds of formula (A) are described wherein, independently of one another, the following applies to groups R and R:

2-alkoxymethyl-3-isoalkenyl-1-methylcyclopentenes, use thereof, in particular as fragrance substances, corresponding articles and production methods

The use of a mixture which comprises cis- and trans-3-methyl-&#x3b3;-decalactone in a molar ratio in the range of 2:3 to 3:2, as a jasmone fragrance is described.

Use of a mixture of cis- and trans-3-methyl-&#x3b3;-decalactone and compositions of odoriferous substances and perfumed articles comprising said mixture

A method is described for the preparation of a trimethylcyclohexyl-alkan-3-ol containing a proportion of trans isomer of Formula Dwhere

Method for the preparation of trimethylcyclohexyl-alkan-3-ols containing a high proportion of trans isomers

The novel substance 5,7,7-trimethyloctanenitrile and certain uses of this substance, in particular as a fragrance, are described.

5,7,7-trimethyloctannitril

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Höxter, Germany

Johannes Panten