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US 10,501,397 B2Granted
Process for Pd-catalyzed hydroxycarbonylation of diisobutene: sulfuric acid/ligand ratio
AssigneeEvonik Degussa GmbH
InventorsRui Sang, Peter Kucmierczyk, Kaiwu Dong, Ralf Jackstell, Matthias Beller, Robert Franke
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Abstract
Process for Pd-catalyzed hydroxycarbonylation of diisobutene:sulfuric acid/ligand ratio.
Claims5
A process for preparing compound P1 comprising:
- a) adding diisobutene to form a reaction mixture,
- b) adding a compound comprising Pd to the reaction mixture, wherein the Pd is capable of forming a complex,
- c) adding ligand L1 to the reaction mixture:
- d) adding acetic acid to the reaction mixture,
- e) adding sulfuric acid to the reaction mixture, wherein the sulfuric acid is in an amount which is at least an amount between 3.5 and 5 mol of sulfuric acid per mole of ligand L1,
- f) feeding into the reaction mixture CO,
- g) heating the reaction mixture such that the diisobutene is converted to the compound P1:
4 more elements
Dependencies are inferred from the claim text.