EP0028892A1
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EP
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A heteronuclear-bridged rhodium cluster and its application as catalyst for hydroformylation of olefins
Assignee: Union Carbide Corp
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Filing: 1980-10-23
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Granted: —
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Expires: 2000-10-23
Abstract
Abstract Heteronuclear-bridge rhodium clusters useful as catalysts in the hydroformylation of olefins.
Inventors
- 👤 Ernst Billig
- 👤 Jackie Dean Jamerson
- 👤 Roy Lavelle
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:37
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/0006; C07F15/0073; C07F15/008; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1895; B01J31/20; B01J31/24; B01J31/2404; C07C; C07C45/00; C07C45/49; C07C45/50; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/821
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
A heteronuclear-bridged rhodium cluster compound having the generic formula Rh f (µ-ER 2 ) m (CO) p (E'R' 3 ) q wherein E and E' each individually represent a Group VA element selected from the group consisting of phosphorus, arsenic or antimony; wherein R and R' each individually represent a monovalent organic radical composed of (1) carbon and hydrogen atoms or (2) carbon, hydrogen and aliphatic etheric oxygen atoms, and are monovalently bonded to the Group VA element through a carbon atom or an aliphatic etheric oxygen atom thereof; wherein f has a value of from 2 to 6, m has a value of from 1 to 6, p has a value of from 1 to 6 and q has a value of from 1 to 6.
Claim 2
Dependent Claim
127 words
A heteronuclear-bridged rhodium cluster compound having the generic formula Rh f (µ-ER 2 ) m (CO) p (E'R' 3 ) q wherein E and E' each individually represent a Group VA element selected from the group consisting of phosphorus, arsenic or antimony; wherein R and R' each individually represent a monovalent organic radical composed of (1) carbon and hydrogen atoms or (2) carbon, hydrogen and aliphatic etheric oxygen atoms, and are monovalently bonded to the Group VA element through a carbon atom or an aliphatic etheric oxygen atom thereof; wherein f has a value of from 2 to 6, m has a value of from 1 to 6, p has a value of from 1 to 6 and q has a value of from 1 to 6.
Claim 3
Dependent Claim
28 words
A rhodium cluster compound as defined in claim 1 wherein R and R' are individually selected from the group consisting of alkyl, cycloalkyl, aryl, alkoxy and aryloxy radicals.
Claim 4
Dependent Claim
20 words
A rhodium cluster compound as defined in claim 1 or 2, wherein E and E' each represent a phosphorus atom.
Claim 5
Dependent Claim
46 words
A rhodium cluster compound as defined in claim 1, 2 or 3, wherein f has a value of 3 to 4: m has a value of 3 to 4; p has a value of 3 to 5 and g has a value of 1 to 2.
Claim 6
Dependent Claim
28 words
A rhodium cluster compound as defined in any one of the preceding claims, wherein R and R' are selected from the group consisting of alkyl and aryl radicals.
Claim 7
Dependent Claim
17 words
A rhodium cluster compound as defined in claim 5, wherein Rand R' each represent a phenyl radical.
Claim 8
Dependent Claim
27 words
A rhodium cluster compound as defined in any one of the preceding claims wherein f is 3; m is 3; p is 3 and q is 2:
Claim 9
Dependent Claim
28 words
A rhodium cluster compound as defined in any one of claims 1 to 6, wherein f is 4; m is 4; p is 5 and q is 1.
Claim 10
Dependent Claim
72 words
In a hydroformylation process for producing aldehydes by hydroformylating an olefin with hydrogen and carbon monoxide in the presence of a hydroformylation reaction medium comprising a soluble rhodium complex catalyst, a solvent for said catalyst, and at least 2 moles of a free triorgano Group VA element ligand, the improvement comprising employing as the catalyst for said process a heteronuclear-bridged rhodium cluster compound as defined in any one of the preceding claims.
Claim 11
Dependent Claim
26 words
A process as defined in claim 9, wherein the free triorgano Group VA ligand is triphenylphosphine and wherein the process is conducted in a continuous manner.
Claim 12
Dependent Claim
24 words
A composition consisting essentially of a heteronuclear-bridged rhodium cluster compound as defined in any one of claims 1 to 8 dissolved in a solvent.
References Cited (Backward Citations)
US4115428A
Cited
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