PROCESS FOR THE ALKOXYCARBONYLATION OF OLEFINS IN A MEDIUM HAVING A LOW BRØNSTED ACID CONCENTRATION

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United States of America Patent

SERIAL NO

15651042

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Abstract

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Process comprising the following process steps:

    a) introducing an ethylenically unsaturated compound;b) adding a ligand-metal complex comprising Pd and a bidentate phosphine ligand, or adding a bidentate phosphine ligand and a compound which comprises Pd;c) adding an alcohol;d) supplying CO;e) heating the reaction mixture, the ethylenically unsaturated compound being reacted to form an ester,where the reaction mixture is admixed with less than 0.1 mol %, based on the amount of substance of the ethylenically unsaturated compound, of Brønsted acids having an acid strength of pKa ≦3,characterized in that the phosphine ligand is substituted on at least one phosphorus atom by at least one heteroaryl radical.

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Patent Owner(s)

Patent OwnerAddress
EVONIK OXENO GMBH & CO KG45772 MARL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
BELLER, Matthias Ostseebad Nienhagen, DE 163 664
DONG, Kaiwu Bo Zhou, CN 29 142
DYBALLA, Katrin Marie Recklinghausen, DE 90 336
FANG, Xiangjie Shanghai, CN 5 40
FRANKE, Robert Marl, DE 223 716
FRIDAG, Dirk Haltern am See, DE 136 638
GEILEN, Frank Haltern am See, DE 40 260
HESS, Dieter Marl, DE 82 699
JACKSTELL, Ralf Cuxhaven Altenwalde, DE 82 334
NEUMANN, Helfried Rostock, DE 24 121

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