Diphosphites having an open and a closed 2,4-methylated outer unit
Diphosphites having an open and a closed 2,4-methylated outer unit and use thereof in hydroformylation.
1. A compound of the structure (I):
where R 1 , R 2 are selected from: —H, —(C 1 -C 12 )-alkyl or —O—(C 1 -C 12 )-alkyl.
2. The compound according to claim 1 , where R 1 , R 2 are selected from: —H, —(C 1 -C 12 )-alkyl.
3. The compound according to claim 1 , where R 1 , R 2 are —(C 1 -C 12 )-alkyl.
4. The compound according to claim 1 , where R 2 are the same radical.
5. The compound according to claim 1 , where the compound has the structure (1):
6. A ligand metal complex comprising a compound according to claim 1 and a substance containing a metal selected from: Rh, Ru, Co or Ir.
7. A process comprising the process steps of:
a) initially charging an olefin,
b) adding a compound according to claim 1 and a substance containing a metal selected from: Rh, Ru, Co or Ir,
c) supplying H 2 and CO, and
d) heating the reaction mixture from steps a) to c), with conversion of the olefin to an aldehyde.