US3891684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organometallic complexes
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1971-11-04
•
Granted: 1975-06-24
•
Expires: 1991-11-04
Abstract
Abstract A process for the preparation of palladium and platinum organometallic complexes in the zerovalent state is described. The process comprises contacting a palladium or platinum compound containing palladium or platinum ions having a valence of at least +1 with complexing ligands such as phosphines, phosphites, arsines, stibines, olefins, and the like. The contacting is carried out in the liquid phase and in the presence of an alcoholic media and in the substantial absence of oxygen preferably at elevated temperatures. The products have known utility as catalysts, for example, in butadiene dimerization reactions, additionally they are useful as catalysts for butadiene co-trimerization reactions with compounds containing an active hydrogen, as well as oxidation reactions.
Inventors
- 👤 Herbert A Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:44
CPC Classifications
C; C07; C07F; C07F15/00; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; B01J31/1895; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; B01J31/2239; B01J31/2282; B01J31/2291; B01J31/24; B01J2531/00; B01J2531/02; B01J2531/0213; B01J2531/0222; B01J2531/80; B01J2531/82; B01J2531/824; B01J2531/828; B01J31/2404; B01J31/2442; B01J31/2461; B01J31/248
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
176 words
A method for preparing organometallic complexes in the zerovalent state which comprises contacting in the liquid phase and in the substantial absence of oxygen; a. palladium or platinum compounds containing palladium or platinum ions having a valence of at least +1 with; b. complexing ligands having the general formula R1R2R3L wherein R1, R2 and R3 are independently selected from the group consisting of alkyl radicals having from 1 to 8 carbon atoms, phenyl radicals, alkaryl radicals having from 7 to 12 carbon atoms and aralkyl radicals having from 7 to 12 carbon atoms and L is a Group VA element, said contacting to be carried out at temperatures from 0*C. to about 200*C. and in the presence of an alcohol having the formula R(OH)n wherein n is an integer ranging from 1 to 3 and R is a monovalent radical selected from the group consisting of alkyl radicals having from 1 to 12 carbon atoms, phenyl radicals, alkaryl radicals having from 7 to 14 carbon atoms, and aralkyl radicals having from 7 to 14 carbon atoms.
Claim 2
Independent Claim
176 words
A method for preparing organometallic complexes in the zerovalent state which comprises contacting in the liquid phase and in the substantial absence of oxygen; a. palladium or platinum compounds containing palladium or platinum ions having a valence of at least +1 with; b. complexing ligands having the general formula R1R2R3L wherein R1, R2 and R3 are independently selected from the group consisting of alkyl radicals having from 1 to 8 carbon atoms, phenyl radicals, alkaryl radicals having from 7 to 12 carbon atoms and aralkyl radicals having from 7 to 12 carbon atoms and L is a Group VA element, said contacting to be carried out at temperatures from 0*C. to about 200*C. and in the presence of an alcohol having the formula R(OH)n wherein n is an integer ranging from 1 to 3 and R is a monovalent radical selected from the group consisting of alkyl radicals having from 1 to 12 carbon atoms, phenyl radicals, alkaryl radicals having from 7 to 14 carbon atoms, and aralkyl radicals having from 7 to 14 carbon atoms.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein R1, R2 and R3 are connected to L through oxygen bridges.
Claim 4
Dependent Claim
22 words
The method of claim 2 wherein said palladium or platinum compounds contain palladium or platinum ions having a valence state of +2.
Claim 5
Independent Claim
160 words
A METHOD OF PREPARING ORGANOMETALLIC COMPLEXES OF PALLADIUM OR PLATINUM IN A ZEROVALENT STATE WHICH COMPRISES CONTACTING IN THE LIQUID PHASE AND IN THE SUBSTANTIAL ABSENCE OF OXYGEN; A. A PALLADIUM OR PLATINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF SALTS, CHELATES AND COODINATION COMPOUNDS CONTAINING PALLADIUM OR PLATINUM IONS HAVING A VALENCE STATE OF AT LEAST +1 WITH; B. COMPLRXING LIGANDS HAVING THE FORMULA R1R2R3L WHEREIN R1, R2 AND R3 ARE INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 1 TO 5 CARBON ATOMS, PHENYL RADICALS, ALKARYL RADICALS HAVING FROM 7 TO 10 CARBON ATOMS AND ARALKYL RADICALS HAVING FROM 7 TO 10 CARBON ATOMS AND L IS PHOSPHORUS, ARSENIC OR ANTIMONY; SAID COMPLEXING LIGANDS BEING PRESENT IN AT LEAST THE STOICHIOMETRIC AMOUNT, SAID CONTACTING TO BE CARRIED OUT AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 40*C. TO ABOUT 150*C. AND IN THE PRESENCE OF AN ALKANOL HAVING FROM 1 TO 12 CARBON ATOMS.
Claim 6
Independent Claim
160 words
A METHOD OF PREPARING ORGANOMETALLIC COMPLEXES OF PALLADIUM OR PLATINUM IN A ZEROVALENT STATE WHICH COMPRISES CONTACTING IN THE LIQUID PHASE AND IN THE SUBSTANTIAL ABSENCE OF OXYGEN; A. A PALLADIUM OR PLATINUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF SALTS, CHELATES AND COODINATION COMPOUNDS CONTAINING PALLADIUM OR PLATINUM IONS HAVING A VALENCE STATE OF AT LEAST +1 WITH; B. COMPLRXING LIGANDS HAVING THE FORMULA R1R2R3L WHEREIN R1, R2 AND R3 ARE INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS HAVING FROM 1 TO 5 CARBON ATOMS, PHENYL RADICALS, ALKARYL RADICALS HAVING FROM 7 TO 10 CARBON ATOMS AND ARALKYL RADICALS HAVING FROM 7 TO 10 CARBON ATOMS AND L IS PHOSPHORUS, ARSENIC OR ANTIMONY; SAID COMPLEXING LIGANDS BEING PRESENT IN AT LEAST THE STOICHIOMETRIC AMOUNT, SAID CONTACTING TO BE CARRIED OUT AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 40*C. TO ABOUT 150*C. AND IN THE PRESENCE OF AN ALKANOL HAVING FROM 1 TO 12 CARBON ATOMS.
Claim 7
Dependent Claim
21 words
The method of claim 4 wherein said palladium or platinum compound is palladium acetate, palladium acetylacetonate, platinum acetate or platinum acetylacetonate.
Claim 8
Dependent Claim
13 words
The method of claim 5 wherein R1, R2 and R3 are phenyl radicals.
Claim 9
Independent Claim
119 words
A method of preparing organometallic complexes in the zerovalent state which comprises contacting in the liquid phase and under an inert atmosphere; a. palladium or platinum salts of a weak acid wherein the palladium or platinum moiety has a valence state of at least +1 with; b. complexing ligands of the type having tHe formula R1R2R3L wherein R1, R2 and R3 are independently selected from the group consisting of alkyl radicals having from 1 to 5 carbon atoms, phenyl radicals, and L is phosphorous, arsenic or antimony, said contacting to be carried out in the range of from between 50 and 100*C. and in the presence of a primary or secondary alkanol having from 1 to 6 carbon atoms.
Claim 10
Independent Claim
119 words
A method of preparing organometallic complexes in the zerovalent state which comprises contacting in the liquid phase and under an inert atmosphere; a. palladium or platinum salts of a weak acid wherein the palladium or platinum moiety has a valence state of at least +1 with; b. complexing ligands of the type having tHe formula R1R2R3L wherein R1, R2 and R3 are independently selected from the group consisting of alkyl radicals having from 1 to 5 carbon atoms, phenyl radicals, and L is phosphorous, arsenic or antimony, said contacting to be carried out in the range of from between 50 and 100*C. and in the presence of a primary or secondary alkanol having from 1 to 6 carbon atoms.
Claim 11
Dependent Claim
17 words
The method of claim 7 wherein said palladium or platinum salt is palladium acetate or platinum acetate.
Claim 12
Dependent Claim
13 words
The method of claim 8 wherein R1, R2 and R3 are benzyl radicals.
Claim 13
Dependent Claim
13 words
The method of claim 9 wherein said alkanol is methanol, ethanol or isopropanol.
Claim 14
Dependent Claim
24 words
The method of claim 7 wherein said palladium or platinum salt is contacted with a mixture of complexing ligands having the above defined significance.
Claim 15
Independent Claim
123 words
A method for preparing organometallic complexes in the zerovalent state which comprises contacting in the liquid phase and in the substantial absence of oxygen; a. palladium or platinum compounds containing palladium or platinum ions having a valence of at least +1 with; b. coordinating ligands comprising olefins, said contacting to be carried out at temperatures from 0*C. to about 200*C. and in the presence of an alcohol having the formula R(OH)n wherein n is an integer ranging from 1 to 3 and R is a monovalent radical selected from the group consisting of alkyl radicals having from 1 to 12 carbon atoms, phenyl radicals, alkaryl radicals having from 7 to 14 carbon atoms and aralkyl radicals having from 7 to 14 carbon atoms.
Claim 16
Independent Claim
123 words
A method for preparing organometallic complexes in the zerovalent state which comprises contacting in the liquid phase and in the substantial absence of oxygen; a. palladium or platinum compounds containing palladium or platinum ions having a valence of at least +1 with; b. coordinating ligands comprising olefins, said contacting to be carried out at temperatures from 0*C. to about 200*C. and in the presence of an alcohol having the formula R(OH)n wherein n is an integer ranging from 1 to 3 and R is a monovalent radical selected from the group consisting of alkyl radicals having from 1 to 12 carbon atoms, phenyl radicals, alkaryl radicals having from 7 to 14 carbon atoms and aralkyl radicals having from 7 to 14 carbon atoms.
Claim 17
Dependent Claim
57 words
The method of claim 12 wherein said coordinating ligands are employed in conjunction with complexing ligands having the formula R1R2R3L wherein R1, R2 and R3 are monovalent alkyl radicals having from 1 to 8 carbon atoms, monovalent alkylaryl radicals having from 7 to 12 carbon atoms or monovalent aralkyl radicals having from 7 to 12 carbon atoms.
Claim 18
Dependent Claim
51 words
The method of claim 1 wherein R is a monovalent radical selected from the group consisting of alkyl radicals having from 1 to 6 carbon atoms, phenyl radicals, aryl radicals having from 7 to 10 carbon atoms, aralkyl radicals having from 7 to 10 carbon atoms and wherein n is 1.
Claim 19
Dependent Claim
17 words
The method of claim 1 wherein said complexing ligands are present in at least the stoichiometric amount.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |