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US 10,196,414 B2Granted
Organic compounds
AssigneeGivaudan SA
InventorsRoger Wilhelm Geisser, Jürg Daniel Oetiker, Fridtjof Schröder
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Abstract
A process for the hydrogenation of a substrate comprising a carbon heteroatom double bond in the presence of a transition metal complex comprising a tridentate or bisdentate-ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the N- and P- and optionally also the S-atom coordinates with the transition metal.
Claims9
A process for the hydrogenation of a functional group containing a carbon heteroatom double bond selected from:
- esters, lactones, ketones, aldehydes, amides, lactams and imines, in the presence of a transition metal complex according to the formula:
- MX2[SNP]Y
- wherein:
- M is a group VIII transition metal and
- SNP represents a tridentate or bisdentate ligand containing a nitrogen, sulphur and phosphorus atom, of which at least the N- and P- and optionally also the S-atom coordinates with the transition metal,
- each X is independently selected from a halide, hydroxyl, alkoxy, acyloxy and amido;
- and each Y is independently selected from a phosphine, a carbon monoxide (CO) ligand, a nitrosyl group and a RCN group, wherein R is alkyl or aryl.
4 more elements
Dependencies are inferred from the claim text.