US 2019/0194114 A1Published application

Process for pd-catalyzed hydroxycarbonylation of diisobutene: ligand/pd ratio

AssigneeEvonik Degussa GmbH

InventorsRui SANG, Peter KUCMIERCZYK, Kaiwu DONG, Ralf JACKSTELL, Matthias BELLER, Robert FRANKE

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Process for Pd-catalyzed hydroxycarbonylation of diisobutene: ligand/Pd ratio.

Dependent claims

Process comprising the process steps of:

a) addition of diisobutene,
b) addition of a compound comprising Pd, wherein the Pd is capable of forming a complex,
c) addition of the ligand
wherein the ligand L1 is added in an amount in the range from 1.0 mol to 2.0 mol of ligand per mole of Pd,
d) addition of acetic acid,
e) feeding in CO,
f) heating the reaction mixture such that the diisobutene is converted to the compound P1:

4 more elements

Dependencies are inferred from the claim text.

C07C 51/252
Of unsaturated compounds containing no six-membered aromatic ring: of propene, butenes, acrolein or methacrolein
B01J 31/2234
At least two oxygen atoms present in one at least bidentate or bridging ligand: beta-dicarbonyl ligands, e.g. acetylacetonates
B01J 31/2295
Unsaturated compounds used as ligands: cyclic compounds, e.g. cyclopentadienyls
B01J 31/2409
Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring: with more…

From the US filing history. Foreign family members aren’t listed.

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