US5602269A
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Organometallic derivatives of group IIIA and process for their preparation
Assignee: Enichem Elastomeri SpA
•
Filing: 1995-07-18
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Granted: 1997-02-11
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Expires: 2015-07-18
Abstract
Abstract New organometallic derivatives of group IIIA are described having general formula M(C 6 F 5 ) 3 wherein M is a metal of group IIIA selected from aluminium, gallium and indium. The above derivatives are prepared by exchange reaction between a metal alkyl MR 3 with an organometallic derivative of boron having the formula B(C 6 F 5 ) 3 .
Inventors
- 👤 Paolo Biagini
- 👤 Gabriele Lugli
- 👤 Luigi Abis
- 👤 Piero Andreussi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:09
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/062
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
17 words
A compound of the formula (I): M(C 6 F 5 ) 3 , wherein M is aluminum.
Claim 2
Dependent Claim
17 words
A compound of the formula (I): M(C 6 F 5 ) 3 , wherein M is aluminum.
Claim 3
Dependent Claim
75 words
A process for the preparation of a compound having formula (I): M(C 6 F 5 ) 3 , which comprises: reacting B(C 6 F 5 ) 3 with a compound having the formula: M(H) n R m , wherein M is aluminum and R is a member selected from the group consisting of aliphatic, cycloaliphatic, benzylic, linear or branched, monofunctional radicals containing from 1 to 20 carbon atoms; n+m=3 and n is 0 or 1.
Claim 4
Dependent Claim
75 words
A process for the preparation of a compound having formula (I): M(C 6 F 5 ) 3 , which comprises: reacting B(C 6 F 5 ) 3 with a compound having the formula: M(H) n R m , wherein M is aluminum and R is a member selected from the group consisting of aliphatic, cycloaliphatic, benzylic, linear or branched, monofunctional radicals containing from 1 to 20 carbon atoms; n+m=3 and n is 0 or 1.
Claim 5
Dependent Claim
12 words
The process of claim 2, wherein R is methyl, ethyl or isobutyl.
Claim 6
Dependent Claim
24 words
The process of claim 3, wherein the molar ratio of B(C 6 F 5 ) 3 to M(H) n R m is about 1:1.
Claim 7
Dependent Claim
13 words
The process of claim 2, wherein the reaction occurs in a hydrocarbon solvent.
Claim 8
Dependent Claim
20 words
The process of claim 2, wherein the reaction is conducted at a temperature ranging from -20° C. to 100° C.
Claim 9
Dependent Claim
16 words
The process of claim 6, wherein the reaction temperature ranges from 0° C. to 30° C.
Claim 10
Dependent Claim
17 words
The process of claim 2, wherein M is aluminum, m=3 and R is methyl, ethyl or isobutyl.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-11 | 2000-08-12 | 2001-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-11 | 2004-08-12 | 2005-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-11 | 2008-08-12 | 2009-02-11 | $7700.00 | Window Closed / Lapsed |