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US 6,525,228 B2Granted
Process of telomerizing conjugated dienes
AssigneeCelanese Chemicals Europe GmbH
InventorsYves Chauvin, Lionel Magna, Gerald Peter Niccolai, Jean-Marie Basset
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Abstract
The present invention is related to a process for telomerizing a conjugated diene which comprises reacting said conjugated diene with a compound containing active hydrogen in the presence of a catalyst system comprising at least one transition metal compound, at least one phosphorus-containing compound, and at least one salt which forms a liquid under the conditions of the telomerization process.
Claims10
A process for telomerizing a conjugated diene comprising the step of:
- reacting said conjugated diene with a compound containing active hydrogen in the presence of a catalyst system comprising at least one transition metal compound, at least one phosphorus-containing compound, and at least one salt which forms a liquid under the conditions of the telomerization process, and
- the phosphorus-containing compound is selected from the group consisting of mono- or bidentate alkylphosphines, arylphosphines, arylalkylphosphines, alkylphosphites, arylphosphites, and arylalkylphosphites, wherein the hydrocarbon moieties independently each may have up to 36 carbon atoms and may be substituted by one to three suitable substituents.
A process of telomerizing a conjugated diene, comprising the steps of:
- providing a transition metal compound, a phosphorus-containing compound, and a salt selected from the group consisting of 1,2,3-, 1,2,3,4- or 1,2,3,4,5-substituted imidazolium salts and 1-substituted pyridinium salts;
- providing a conjugated diene;
- and
- reacting said conjugated diene with said transition metal compound, said phosphorus-containing compound and said salt so as to form a telomer.
1 more element
Dependencies are inferred from the claim text.