Hydroformylation process and bidentate phosphite ligand catalysts used therein
AssigneesDsm N.V., E.I. du Pont de Nemours and Company
InventorsCarolina B. Hansen, Antonius J. J. M. Teunissen
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Abstract
The invention relates to a process for preparing an aldehyde compound by hydroformylation of an ethylenically unsaturated organic compound, using a catalyst system which includes a Group VIII metal and a novel bidentate phosphite ligand. The bidentate phosphite ligand has a chemical structure according to formula (1), ##STR1## wherein R.sup.1 and R.sup.3 are respectively substituted or unsubstituted organic groups which may be the same or different, and wherein R.sup.2 is a substituted or unsubstituted tetravalent organic group.
Claims12
A process for preparing an aldehyde compound by hydroformylation of an ethylenically unsaturated organic compound in the presence of a Group VIII metal catalyst and a bidentate phosphite ligand having a chemical structure according to formula ##STR10## wherein R.sup.1 and R.sup.3 are organic groups which may be the same or different and which contain 1 to 30 carbon atoms selected from the group consisting of alkyl, cycloalkyl, aryl, aralkyl and alkaryl groups, and wherein R.sup.2 is a tetravalent organic group having at least 4 and up to 35 carbon atoms.
Dependencies are inferred from the claim text.