| abstract |
The invention relates to a catalyst which comprises at least one complex of a metal of subgroup VIII, which comprises at least one monodentate, bidentate or multidentate phosphinite ligand, in which the phosphorus and oxygen atoms of the phosphinite group are part of a 5- to 8-membered heterocycle , and methods for hydroformylation and for the hydrocyanation of compounds which contain at least one ethylenically unsaturated double bond in the presence of such a catalyst. |