Basf Se Corporation

Volker Hickmann

Ralf Pelzer

Florian Garlichs

Manuel Danz

Timon Stork

Stefan Ruedenauer

Wolfgang Siegel

Stefan Rüdenauer

Miriam Bru Roig

Shrirang Bhikaji Hindalekar

Melanie Weingarten

Vijay Narayanan Swaminathan

Nitin Gupte

Sadanand Ardekar

Volker Maywald

Roland Goetz

Andreas Keller

Wolfgang Krause

Daniel Saelinger

Rainer Klopsch

Daniel Schneider

Ralf Boehling

Bernd Schaefer

Verena Mormul

Andreas Lanver

Martine Dehn

Stephanie Renz

Helmut Kronemayer

Silke Weyland

Margarethe Klos

Sumana Roy

Michael Acker

Dominik Herbrecht

Mileen Kadam

Shrirang Hindalekar

Christina Haaf-Kleinhubbert

Vijay Swaminathan

The present invention relates to substituted 4-methylene-tetrahydropyrans, 4-methyl-dihydropyrans and 4-methyl-tetrahydropyrans of formula (I), where the variables are as defined in the claims and description, to a stereoisomer thereof, to a mixture of stereoisomers thereof, to a mixture of different di- and tetrahydropyrans (I) and to a mixture containing at least one di- or tetrahydropyran (I) and at least one cyclic acetal which is a 1,3-dioxan carrying in 2-position an isobutanol-2-yl-(derived) substituent and in 4,4- or 5,5-position two methyl substituents. The invention also relates to the use of such compounds as an aroma chemical and/or for modifying and/or enhancing the aroma of a composition, to compositions comprising such compounds, to methods for preparing such compounds and to a product obtainable by these methods.

Substituted 4-methylene-tetrahydropyrans, 4-methyl-dihydropyrans and 4-methyl-tetrahydropyrans and use thereof as aroma chemicals

The presently claimed invention is directed to the use of 1-alkoxyethyl-4-isobutyl-benzene of formula (I) to impart an aroma impression to a composition. The presently claimed invention also relates to a method of imparting such aroma impression. The present invention is further directed to compositions comprising the compound of formula (I) and at least one aroma chemical as well as to compositions comprising the compound of formula (I) and at least one further component selected from the group consisting of aroma chemicals, surfactants, oil components, anti-oxidants, deodorant-active agents and solvents. The present invention also relates to a compound of formula (I').

1-alkoxyethyl-4-isobutyl-benzene as aroma ingredients

The present invention relates to the use of (3-hydroxy-2,2-dimethyl-propyl) acetate for enhancing and/or modifying the aroma of (3-acetoxy-2,2-dimethyl-propyl) acetate. The invention further relates to the use of (3-acetoxy-2,2-dimethyl-propyl) acetate in combination with (3-hydroxy-2,2-dimethyl-propyl) acetate as an aroma chemical and for enhancing and/or modifying the aroma of a composition. The present invention further relates to compositions comprising (3-acetoxy-2,2-dimethyl-propyl) acetate combined with (3-hydroxy-2,2-dimethyl-propyl) acetate and at least one aroma chemical and/or at least one non-aroma chemical carrier.

Use of (3-acetoxy-2,2-dimethyl-propyl) acetate in combination with (3-hydroxy-2,2-dimethyl-propyl) acetate as an aroma chemical

The present invention relates to a method for preparing a compound of formula (I). The present invention also relates to compounds of formula (A) or a compound in the form of a stereoisomer. The present invention further relates to the use of a compound of formula (A) as aroma chemical. 

Synthesis of aliphatic alcohols as aroma chemicals

The present invention relates to a process for preparing bromotrichloromethane comprising

Process for preparing bromotrichloromethane

The present invention relates to a method for preparing acetate compounds using ketene.

Preparation of acetate compounds via a ketene compound

The present invention relates to tetrahydropyranyl lower akyl esters and specifically to tetrahydropyranyl acetates, a method for preparation thereof using ketene and use thereof as fragrances and aroma substances.

Tetrahydropyranyl lower alkyl esters and the production of same using a ketene compound

The present invention relates to 2,3,7-Trimethyloct-6-enyl acetate and 3,7-dimethyl-2-methylene-oct-6-enyl acetate and derivatives thereof and their use as aroma chemicals.

2,3,7-trimethyloct-6-enyl acetate and 3,7-dimethyl-2-methylene-oct-6-enyl acetate and derivatives thereof and their use as aroma chemicals

The present invention relates to a method for preparing tetrahydropyranyl esters from the corresponding 4-hydroxytetrahydropyran compounds by reaction with a ketene compound.

Method for producing tetrahydropyranyl esters

The present invention relates to a process for reacting isopulegol to menthone in the gas phase and to the use of the reaction products thus prepared as additives in foods, cosmetics, pharmaceutical products, tobacco formulations, household products, and laundry care products.

Method for producing menthones from isopulegol in the gas phase

Coating compositions comprising a compound having at least two cyclic carbonate groups and a siloxane group (called 'carbonate compound').

Coating compositions comprising a compound with at least two cyclic carbonate groups and a siloxane group

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Ludwigshafen, Germany

Volker Hickmann