C07C31/1355

Use of 1-ethyl-4,4-dimethyl-cyclohexane derivatives as fragrances
12031106 · 2024-07-09 · ·

The present invention relates to the use of 1-(4,4-dimethylcyclohexyl)ethanone, 1-(4,4-dimethylcyclohex-1-en-1-yl)ethanone, 1-(4,4-dimethylcyclohexyl)ethanol, 1-(4,4-dimethylcyclohexyl)ethyl acetate and 1-(2-hydroxy-4,4-dimethylcyclohexyl)ethanone as a fragrance substance, in particular with a flowery and/or fruity olfactory characteristic. The present invention further relates to fragrance compositions and perfumed products comprising the compounds listed above. The present invention also relates to a method producing perfumed products and a method producing 1-(4,4-dimethylcyclohexyl)ethanol or 1-(4,4-dimethylcyclohexyl)ethyl acetate. Further, the invention relates to the compounds 1-(4,4-dimethylcyclohexyl)ethyl acetate, 1-(4,4-dimethylcyclohexyl)ethanol and 1-(2-hydroxy-4,4-dimethylcyclohexyl)ethanone.

Chiral diamine compounds for the preparation of chiral alcohols and chiral amines

Processes for stereoselective preparation of a chiral alcohol or a chiral amine are described. The processes include reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant that includes a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein: ##STR00001##

Chiral diamine compounds for the preparation of chiral alcohols and chiral amines

Processes for stereoselective preparation of a chiral alcohol or a chiral amine are described. The processes include reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant that includes a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein: ##STR00001##

ALICYCLIC ALCOHOL, ALICYCLIC ALCOHOL COMPOSITION, AND PERFUME COMPOSITION

An alicyclic alcohol represented by General Formula (1) below, and an alicyclic alcohol composition comprising the alicyclic alcohol, is described:

##STR00001##

The alicyclic alcohol composition may comprise an alicyclic alcohol represented by Formula (3) below and an alicyclic alcohol represented by Formula (4) below:

##STR00002##

A fragrance composition is also disclosed, which comprises the alicyclic alcohol represented by General Formula (1).

Methods of carbon-carbon bond fragmentation

The present disclosure relates to methods of carbon-carbon bond fragmentation.

Methods of carbon-carbon bond fragmentation

The present disclosure relates to methods of carbon-carbon bond fragmentation.

Processes for the synthesis of chiral 1-alkanols
10000432 · 2018-06-19 · ·

The invention relates to highly enantioselective processes for the synthesis of chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes.

Processes for the synthesis of chiral 1-alkanols
10000432 · 2018-06-19 · ·

The invention relates to highly enantioselective processes for the synthesis of chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes.

Compositions and methods for reduction of ketones, aldehydes and iminiums, and products produced thereby

A method of producing an alcohol, comprises reducing an aldehyde or a ketone with a hydridosilatrane. The reducing is carried out with an activator.

Compositions and methods for reduction of ketones, aldehydes and iminiums, and products produced thereby

A method of producing an alcohol, comprises reducing an aldehyde or a ketone with a hydridosilatrane. The reducing is carried out with an activator.