US4837188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic systems having extended duration and conservation for the metathesis of olefins
Assignee: Societe National Elf Aquitaine
•
Filing: 1988-03-18
•
Granted: 1989-06-06
•
Expires: 2008-03-18
Abstract
Abstract Improved catalytic systems of long active duration, comprising initially (a) a tungsten compound, (b) an organometallic compound and (c) a partially or totally fluorinated organic compound. Process of stabilization of these catalytic systems, comprising dissolving (a) in an organic solvent, contacting (b) with (a), agitation and heating at 0° to 100° C. for 0.5 to 60 minutes, then introduction of (c) into the mixture of (a) and (b). Use of these stabilised catalytic systems for the metathesis of olefins which carry functional groups or do not carry such groups.
Inventors
- 👤 Jean-Paul Laval
- 👤 Michel Leconte
- 👤 Jean Ollivier
- 👤 Emile Perez
- 👤 Francoise Quignard
- 👤 Isabelle Rico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0201; B01J31/0211; B01J31/0214; B01J31/0231; B01J31/12; B01J31/122; C07; C07C; C07C6/00; C07C6/02; C07C6/04; B01J2231/00; B01J2231/50; B01J2231/54; B01J2231/543; B01J2531/00; B01J2531/60; B01J2531/66; B01J31/16; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/26; B01J31/34; C07C2527/00; C07C2527/06; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/26; C07C2531/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
111 words
A catalytic system for the metathesis of olefins, which comprises: (a) a tungsten halide of the formula ##STR40## where x is 0 or 2, X is a halogen atom, and R is a hydrocarbyl or an electronegative atom or group; (b) an organometallic compound of Li, Mg, Ti, Al, Sn or Pb, and (c) a fluorinated organic compound having the structure of R F --R"--R' F in which R' is a saturated or unsaturated hydrocarbon chain having 0 to 7 carbon atoms, while R F and R' F are hydrocarbon chains partially or totally fluorinated, R F having 0 to 20 carbon atoms and R' F 2 to 20 carbon atoms.
Claim 2
Dependent Claim
111 words
A catalytic system for the metathesis of olefins, which comprises: (a) a tungsten halide of the formula ##STR40## where x is 0 or 2, X is a halogen atom, and R is a hydrocarbyl or an electronegative atom or group; (b) an organometallic compound of Li, Mg, Ti, Al, Sn or Pb, and (c) a fluorinated organic compound having the structure of R F --R"--R' F in which R' is a saturated or unsaturated hydrocarbon chain having 0 to 7 carbon atoms, while R F and R' F are hydrocarbon chains partially or totally fluorinated, R F having 0 to 20 carbon atoms and R' F 2 to 20 carbon atoms.
Claim 3
Dependent Claim
91 words
The catalytic system according to claim 1, wherein R" is a hydrocarbon chain selected from the group consisting of CH 3 (CH 2 ) n --, --(CH 2 ) n' --, CH 2 =CH(CH 2 ) m -- and --CH═CH--, n being an integer of 0 to 6, n' an integer of 0 to 5 and m an integer of 0 to 3, while R F and R' F are saturated hydrocarbon chains totally fluorinated, R F having 0 to 12 carbon atoms and R' F 2 to 12 carbon atoms.
Claim 4
Dependent Claim
32 words
The catalytic system according to claim 1, in which component (a) is ##STR41## where x=O or 2, X is Cl or F, and R is a lower alkyl, Cl, F or Br.
Claim 5
Dependent Claim
20 words
The catalytic system according to claim 1, wherein component (b) is an organo compound of Al, Ti, Li, or Mg.
Claim 6
Dependent Claim
43 words
The catalytic system according to claim 1, wherein component (b) is an organo metallic compound M(R') 4 M being a Sn or Pb atom and R' an alkyl having 1 to 12 carbon atoms or an aryl having 6 to 12 carbon atoms.
Claim 7
Dependent Claim
28 words
The catalytic system of claim 1, which contains a solvent selected from the group consisting of benzene, toluene, saturated C 6 to C 22 hydrocarbons, fluorocarbons and chlorobenzenes.
Claim 8
Dependent Claim
21 words
The catalytic system of claim 1, wherein the molar ratio of component (c) to component (a) is initially 0.5/1 to 20/1.
Claim 9
Dependent Claim
22 words
The catalytic system of claim 1, wherein the molar ratio of component (b) to component (a) is comprised between 1 and 4.
Claim 10
Dependent Claim
67 words
A method of preparing the catalytic system according to claim 1, which comprises dissolving component (a) in an organic solvent adding component (b) to the solution thus obtained, stirring the solution while heating it to a temperature of 0° to 100° C. during 0.5 to 60 minutes, then introducing thereinto 0.5 to 20 moles of component (c) per mole of component (a) and ceasing heating and stirring.
Claim 11
Dependent Claim
33 words
The method of claim 9 wherein (c) is C 4 F 9 CH═CH 2 , C 8 F 17 CH 2 CH 3 or C 8 F 17 CH═CHC 8 F 17 .
Claim 12
Dependent Claim
15 words
The method of claim 9 wherein (c) is C 8 F 17 CH═CH 2 .
Claim 13
Dependent Claim
13 words
The catalytic system according to claim 3, wherein X and R are Cl.
Claim 14
Dependent Claim
26 words
The catalytic system according to claim 12, wherein x is 2 and (b) is SnR' 4 where R' is alkyl having 1 to 12 carbon atoms.
Claim 15
Dependent Claim
26 words
The catalytic system according to claim 13 wherein R' is butyl and the molar ratio of component (c) to component (a) is initially 0.5/1 to 20/1.
Claim 16
Dependent Claim
35 words
The catalytic system according to claim 14 wherein (c) is C 4 F 9 CH═CH 2 , C 8 F 17 CH 2 CH 3 or C 8 F 17 CH═CHC 8 F 17 .
Claim 17
Dependent Claim
17 words
The catalytic system according to claim 14 wherein (c) is C 8 F 17 CH═CH 2 .
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) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |