EP0121965A2
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EP
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Process for the preparation of polyketones
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1984-03-08
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Granted: —
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Expires: 2004-03-08
Abstract
Abstract A process for the preparation of polyketones by polymerizing a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group VIII metal catalyst containing ligands, which comprise hydrocarbon groups that are bonded to an element from groub Vb, characterized in that, as catalyst, a complex compound is used that is obtained by reacting a palladium, cobalt or nickel compound, an anion of an acid with a pKa of less than 2, provided it is neither a hydrohalogenic acid nor carboxylic acid and a bidentate ligand of the general formula R 1 R 2 -M-R-M-R 3 R 4 , in which M represents phosphorus, arsenic or antimony, R represents a divalent organic bridging group having at least two carbon atoms in which the bridge, none of these carbon atoms carrying substituents that may cause steric hindrance and in which R 1 , R 2 , R 3 and R 4 are identical or different hydrocarbon groups.
Inventors
- 👤 Eit Drent
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 19:03
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
170 words
A process for the preparation of polyketones by polymerizing a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group VIII metal catalyst containing ligands, which comprise hydrocarbon groups that are bonded to an element from group Vb, characterized in that, as catalyst, a complex is used that is obtained by reacting a palladium, cobalt or nickel compound, an anion of an acid with a pKa of less than 2, provided it is neither a hydrahalogenic acid nor carboxylic acid and a bidentate ligand of the general formula R 1 R 2 -M-R-M-R 3 R 4 , in which M represents phosphorus, arsenic or antimony, R represents a divalent organic bridging group having at least two carbon atoms in the bridge, none of these carbon atoms carrying substituents that may cause steric hindrance and in which R 1 , R 2 , R 3 and that may cause steric hindrance and in which R 1 ,R 2 , R R4 are identical or different hydrocarbon groups.
Claim 2
Dependent Claim
170 words
A process for the preparation of polyketones by polymerizing a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group VIII metal catalyst containing ligands, which comprise hydrocarbon groups that are bonded to an element from group Vb, characterized in that, as catalyst, a complex is used that is obtained by reacting a palladium, cobalt or nickel compound, an anion of an acid with a pKa of less than 2, provided it is neither a hydrahalogenic acid nor carboxylic acid and a bidentate ligand of the general formula R 1 R 2 -M-R-M-R 3 R 4 , in which M represents phosphorus, arsenic or antimony, R represents a divalent organic bridging group having at least two carbon atoms in the bridge, none of these carbon atoms carrying substituents that may cause steric hindrance and in which R 1 , R 2 , R 3 and that may cause steric hindrance and in which R 1 ,R 2 , R R4 are identical or different hydrocarbon groups.
Claim 3
Dependent Claim
17 words
A process as claimed in claim 1, characterized in that, as anion, a non-coordinating anion is used.
Claim 4
Dependent Claim
35 words
A process as claimed in claim 2, characterized in that an anion of a sulphonic acid or of an acid that can be formed by interacting a Lewis acid with a Broensted acid, is used.
Claim 5
Dependent Claim
53 words
A process as claimed in claim 1 or 2, characterized in that an anion of an acid having the general formula in which X represents sulphur or chlorine and, if X is chlorine, R 7 represents oxygen and, if X is sulphur, R 7 represents an OH group or hydrocarbon group, is used.
Claim 6
Dependent Claim
27 words
A process as claimed in claim 4, characterized in that the hydrocarbon group R 7 is an alkyl, aryl, aralkyl or alkaryl group with 1-30 carbon atoms.
Claim 7
Dependent Claim
23 words
A process as claimed in claim 4 or 5, characterized in that an anion of p-toluene sulphonic acid or trifluoromethanesulphonic acid is used.
Claim 8
Dependent Claim
41 words
A process as claimed in claims 1-6, in which group -R-represents a group (̵CR5R6)̵ n in which R 5 and R 6 are hydrogen atoms or hydrocarbon groups offering no steric hindrance and n is a number of at least 2.
Claim 9
Dependent Claim
31 words
A process as claimed in claims 1-7, characterized in that the 4 hydrocarbon groups R , R 2 , R 3 and R 4 are aryl groups with 6-14 carbon atoms.
Claim 10
Dependent Claim
16 words
A process as claimed in claim 8, characterized in that the aryl groups are phenyl groups.
Claim 11
Dependent Claim
22 words
A process as claimed in claims 1-9, characterized in that 0.33-3 mol bidentate ligand per mol Group VIII metal compound is used.
Claim 12
Dependent Claim
19 words
A process as claimed in claims 1-10, characterized in that the Group VIII metal compound is a palladium compound.
Claim 13
Dependent Claim
17 words
A process as claimed in claims 1-11, characterized in that as bidentate ligand a phosphine is used.
Claim 14
Dependent Claim
17 words
A process as claimed in claims 1-12, characterized in that, as alkenically unsaturated hydrocarbon, ethylene is employed.
References Cited (Backward Citations)
No citation records indexed.
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