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US 10,167,244 B2Granted
Method for hydroformylating cyclooctadiene using 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane
AssigneeEvonik Degussa GmbH
InventorsKatrin Marie Dyballa, Robert Franke, Dirk Fridag, Dieter Hess, Detlef Selent, Armin Börner
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Abstract
A catalytic method for hydroformylating a cyclooctadiene substrate involving forming a reaction mixture that includes the cyclooctadiene and a precursor of or a transitional metal ligand complex where the ligand has structure (1): H2 and CO are fed into the reaction mixture and the mixture is heated to convert the cyclooctadiene into an aldehyde. A preferred ligand is 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane.
Claims5
A method for hydroformylating cyclooctadiene, comprising the method steps of:
- a) initially charging cyclooctadiene;
- b) adding a complex comprising:
- a metal atom selected from:
- Rh, Ru, Co, Ir, and
- a ligand having the structure (1):
- or
- adding a precursor complex comprising a metal atom selected from:
- Rh, Ru, Co, Ir, and a compound having the structure (1):
- c) feeding in H2 and CO,
- d) heating the reaction mixture, wherein the cyclooctadiene is converted to an aldehyde.
7 more elements
Dependencies are inferred from the claim text.