[EN] PROCESS FOR THE INTRACYCLIC DOUBLE BOND ISOMERIZATION [FR] PROCÉDÉ D'ISOMÉRISATION DE DOUBLE LIAISON INTRACYCLIQUE
摘要:
The present invention relates to the field of organic synthesis. More particularly, it provides a process for the preparation of a 1-(cycloalk-1-en-1-yl) acyl or 1- (cycloalkadien-1-yl) acyl derivative comprising a conjugated intracyclic carbon-carbon double bond isomerization in the presence of a catalyst system comprising palladium (Pd) and molecular hydrogen or a hydrogen source.
Precursors for fragrant ketones and fragrant aldehydes
申请人:Givaudan SA
公开号:EP1262473A1
公开(公告)日:2002-12-04
The present invention refers to fragrance precursors of formula I
for a fragrant ketone of formula II
and one or more fragrant aldehydes or ketones of formula III and IV,
These fragrance precursors are useful in perfumery, especially in the fine and functional perfumery.
[EN] ESTERS AND THEIR USE IN PERFUMERY<br/>[FR] ESTERS ET LEUR UTILISATION DANS LE DOMAINE DE LA PARFUMERIE
申请人:GIVAUDAN SA
公开号:WO2004050602A1
公开(公告)日:2004-06-17
This invention relates to unsaturated alicyclic carbonyl compounds of formula (I) [insert formula (I) here]wherein R is C1 to C4 alkyl; orR is vinyl or a linear, branched or cyclic C3 to C4 alkenyl;X is carbonyl or a divalent radical -(CMe2)- ; and Y is oxygen or a divalent radical -(CH2)- .
[EN] A PRODRUG COMPRISING BETA-KETO CARBOXYLIC ACID, BETA-KETO CARBOXYLIC ACID SALT OR BETA-KETO CARBOXYLIC ACID ESTER FOR DRUG DELIVERY<br/>[FR] PROMÉDICAMENT COMPRENANT UN ACIDE BÊTA-CÉTO CARBOXYLIQUE, UN SEL D'ACIDE BÊTA-CÉTO CARBOXYLIQUE OU UN ESTER D'ACIDE BÊTA-CÉTO CARBOXYLIQUE POUR L'ADMINISTRATION DE MÉDICAMENT
申请人:YKI YTKEMISKA INST AB
公开号:WO2010120232A1
公开(公告)日:2010-10-21
There is provided a prodrug of a pharmaceutically active agent, said prodrug comprising a beta-keto carboxylic acid, a beta-keto carboxylic acid salt or a beta-keto carboxylic acid ester functional group, to a pharmaceutical composition comprising the prodrug, and to the use of the prodrug or composition for treatment of a mammalian subject suffering from a condition which can be cured or alleviated by administration of said pharmaceutically active agent. There is further provided a method of inhibiting decarboxylation of a compound comprising a beta-keto carboxylic acid or a salt thereof with a monovalent cation, characterized in that a dry salt of said beta-keto carboxylic acid with a divalent or polyvalent cation is prepared.
[EN] SYNTHESIS OF GREEN KETONE INTERMEDIATE<br/>[FR] SYNTHÈSE D'INTERMÉDIAIRE DE CÉTONE VERTE
申请人:DSM IP ASSETS BV
公开号:WO2010043522A1
公开(公告)日:2010-04-22
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.
[EN] PROCESS OF PRODUCTION OF 1-(5,5-DIMETHYLCYCLOHEX-1-EN-1-YL)ETHANONE AND 1-(5,5-DIMETHYLCYCLOHEX-6-EN-1-YL)ETHANONE<br/>[FR] PROCÉDÉ DE PRODUCTION DE 1- (5,5-DIMÉTHYLCYCLOHEX -1-ÈN -1-YL)ÉTHANONE ET DE 1- (5,5-DIMÉTHYLCYCLOHEX -6-ÈN -1-YL)ÉTHANONE
申请人:DSM IP ASSETS BV
公开号:WO2015144832A1
公开(公告)日:2015-10-01
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.