Abstract:
The present invention describes compounds and uses thereof in applications relating to absorption of electromagnetic energy. Preferred compounds are double bond-containing cyclic compounds capable of absorbing electromagnetic radiation energy and having improved photostability due to the presence and location of one or more fluorine groups in relation to the double bond of the ring.
Abstract:
The present invention relates to an improved method for producing of 1-(5,5-dimethylcyclohex-1-en-1-yl)ethanone and 1-(5,5-dimethylcyclohex-6-en-1-yl)ethanone.
Abstract:
A process for the preparation of 1-ethynyl-3,3-dimethylcyclohexan-1-ol from dimedone by a reaction sequence of reduction and ethynylation and its further transformation into green ketone.
Abstract:
The present disclosure describes processes for producing cyclohexenes using Lewis acidic ionic liquids comprising the steps of providing to a reactor an α,β-unsaturated carbonyl dienophile, providing to the reactor a 1,3-diene, providing a Lewis acidic ionic liquid to the reactor; and reacting the α,β-unsaturated carbonyl dienophile with 1,3-diene to form a substituted cyclohexene product. The α,β-unsaturated carbonyl dienophile can be mesityl oxide, the 1,3-diene can be piperylene; and the Lewis acidic ionic liquid can be AlCl3:[C2mim]Cl; AlCl3:[C8mim]Cl; or mixtures thereof.
Abstract:
Processes for producing intermediate materials used for perfumery, specifically, epimerized cyclohexenyl ketones, are disclosed. Processes for employing the epimerising reaction in an Aldol condensation reaction are also disclosed.
Abstract:
The present invention relates to a process for the carbon-carbon double bond isomerisation of a 2-alkyl-cyclohex-3-enyl alkyl or alkenyl ketone into a mixture comprising the corresponding 2-alkyl-cyclohex-2-enyl ketones and the corresponding 2-alkylene-cyclohexyl ketones, using as catalyst a ruthenium complex obtainable by the reaction of an appropriate ruthenium organometallic precursor and an acid.
Abstract:
An economical process for producing (2- and/or 1-)cyclohexenyl methyl ketones which are intermediates for the synthesis of null- or null-damascone. In the presence of a catalyst, a 3-cyclohexenyl methyl ketone represented by the following formula (1a): 1 wherein, R1, R2 and R3 each independently represents a hydrogen atom or a methyl group and at least two of R1, R2 and R3 are methyl groups, is isomerized.
Abstract:
Described is a process for augmenting or enhancing the aroma or taste of raspberry flavored foodstuffs comprising the step of adding to a foodstuff, an aroma augmenting or enhancing quantity of certain 2,6,6-trimethylcyclohexene derivatives.
Abstract:
Described is a process for preparing hydrogenated derivatives of 2,6,6-trimethyl cyclohexene derivatives by means of treating said derivatives with hydrogen in the presence of a supported palladium catalyst such as palladium-on-calcium carbonate or palladium-on-barium sulfate in the presence of a quinoline activator. The resulting products are useful for their organoleptic properties as foodstuff flavorants and flavor enhancers, perfume composition ingredients, perfumed article ingredients and tobacco flavorants and flavor enhancers.
Abstract:
New oxygenated alicyclic derivatives useful as perfuming and odor modifying agents in the manufacture of perfumes or perfumed products, and as flavoring and taste-modifying agents in the aromatization of foodstuffs in general and imitation flavors for foodstuffs, beverages, animal feeds, pharmaceutical preparations and tobacco products.Novel processes for the preparation of said alicyclic derivatives and compositions of matter relating to mixtures containing same.