Method for Producing Odorants and Fragrances on a Thin-Film Evaporator
OwnerBernd HÖLSCHER, Frank GERSTMANN +3inventors
InventorsBernd HÖLSCHER, Frank GERSTMANN, Stefanie BARGSTEN, Gennadiy KOLOMEYER, Emilie SINGER
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Abstract
The present invention relates to a process for the preparation of an odorant or fragrance by carrying out thermal rearrangement reactions of chemical compounds under mild and resource-saving conditions in a thin-film evaporator under distillative conditions, as well as to the products, i.e. compounds directly resulting from this process. In particular, the present invention relates to an alternative and novel process for producing the odorant of 3-(4-isopropylcyclohexen-1-yl) propanal via a thermal rearrangement reaction in a thin film evaporator.
Claims16
A process for the preparation of an odorant or fragrance by carrying out thermal rearrangement reactions comprising the following steps:
- a) Providing at least one reaction educt and/or other reagents in a thin film evaporator;
- b) Carrying out at least one thermal rearrangement reaction on the reaction educts from step a) in the thin film evaporator under distillative conditions;
- c) Obtaining the odorant or fragrance.
Dependencies are inferred from the claim text.