Firmenich Sa

Julie Quintaine

Lionel Saudan

Anthony Alexander Birkbeck

Robert Moretti

David W C MacMillan

Julien Coulomb

David W C Macmillan

Described herein is a compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein R, R, Rand Rindependently from each other, represent a hydrogen atom or a Calkyl group. The use of compound of formula (I) as perfuming ingredients of floral type and the compounds as part of a perfuming composition or of a perfuming consumer product are also described.

Cyclohexene propanal derivatives as perfuming ingredients

Described herein is a compound of formula (I) in the form of any one of its stereoisomers, regioisomers or a mixture thereof. The use of compound of formula (I) as perfuming ingredients of floral type and of these compounds as part of a perfuming composition or of a perfuming consumer product are also described.

Described herein is a process including isomerizing the &#x3b2; position of a &#x3b2;-trisubstituted C-Ccarbonyl compound.

Isomerisation reaction

The alpha alkylation of an aldehyde with a polycyclic olefin followed by a ring opening step is presented in order to provide a compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof and where in R represents a hydrogen atom or Clinear alkyl group; R, R, R, and Rrepresent, when taken separately, independently of each other, a hydrogen atom or a Clinear alkyl group or a Clinear or branched alkyl group; or Rand R, when taken together, represent a Clinear, branched or cyclic alkanediyl group and n is 1 or 2 is presented. 

Alpha alkylation of aldehyde with a polycyclic olefin

Described herein is a process including alpha alkylation of an aldehyde with a polycyclic olefin followed by a ring opening step in order to provide a compound of formula in a form of any one of its stereoisomers or a mixture thereof and where n represents 1 to 4 and Rto Rrepresent independently of each other, a hydrogen atom or a Clinear alkyl group or a Cbranched alkyl group; and Rand Ror Ror, alternatively, Rand Rwhen taken together form a saturated or unsaturated optionally substituted 5 or 6 membered carbocyclic ring.

Cyclopropyl ring opening by alpha alkylation of an aldehyde with a polycyclic olefin

The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Fe complexes with tridentate ligands, having one amino or imino coordinating group and two phosphino coordinating groups, in hydrogenation processes for the reduction of ketones, aldehydes, esters or lactones into the corresponding alcohol or diol, respectively. 

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Satigny, Switzerland

Julie Quintaine