Firmenich Sa

Jean-Jacques Riedhauser

Lionel Saudan

Philippe Dupau

Patrick Wyss

Oliver Knopff

Denis Jacoby

Valentin Rautenstrauch

Fabrice Keller

Philippe Miranda

Harvey Randall

Luigi Marinoni

The present invention relates to the field of organic synthesis and more specifically it concerns a process for the dehydrogenation of compound of formula (I) catalyzed by palladium (Pd) in elemental metallic form.

Dehydrogenation reaction

The present invention concerns a process for the preparation with high selectivity of a compound of formula (I) by isomerization at room temperature of compound of formula (II) in the presence of a complex of formula [Ru(dienyl)H]X.

Process for the preparation of 4-methylpent-3-en-1-ol derivatives

The present invention concerns a process of carbonylation of poly-unsaturated diene with high selectivity for the preparation of a &#x3b2;,&#x3b3;-unsaturated carboxylic acid or ester in the presence of water or alcohol and catalyzed by [PdClP] complex wherein Pis two mono or one bidentate phosphine ligand.

Hydrocarbonylation or methoxycarbonylation of 1,3-diene derivatives with palladium complex

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

Hydrogenation of esters with Ru/bidentate ligands complexes

The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with tetradentate ligands having at least one amino or imino coordinating group and at least one phosphino coordinating group in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.

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Dardagny, Switzerland

Jean-Jacques Riedhauser