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US3933878A Expired / Lapsed US ⏱️ 0.0 years remaining

Ligand complexes of cu(1)salts

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1973-08-10
•
Granted: 1976-01-20
•
Expires: 1993-08-10
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Abstract

Abstract Novel compositions of matter herein are claimed and may be represented by the general formula CuA.L, where CuA is a Cu(I) salt of medium to strong Bronsted acids and L is a ligand chosen from a variety of structural classes including phosphines, phosphites, phosphine sulfides, phosphine oxides, thiophosphates, thioureas or arsines. These compositions are liquid at ambient conditions and are useful for complexing a variety of complexible organic compounds such as olefins, diolefins, allenes, acetylenes, aromatics, carbon monoxide and the like. In a preferred embodiment, the use of trialkyl phosphines is found to improve the stability of CuAlCl4.aromatic systems when said systems are used in olefin complexing processes.

Inventors

  • 👤 William E. Tyler, III
  • 👤 Martin B. Dines

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 11:19
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/5045

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 29 words
Novel compositions of matter having the general formula CuAlCl 4 .L wherein L is selected from the group consisting of tributyl phosphine, trioctyl phosphine, trihexadecyl phosphine, decyl dimethyl phosphine.
Claim 2
Dependent Claim 29 words
Novel compositions of matter having the general formula CuAlCl 4 .L wherein L is selected from the group consisting of tributyl phosphine, trioctyl phosphine, trihexadecyl phosphine, decyl dimethyl phosphine.
Claim 3
Dependent Claim 62 words
Compositions of matter having the general formula CuAlCl 4 .L wherein L is a phosphine having the formula R 1 R 2 R 3 P, wherein R 1 , R 2 and R 3 are independently selected from the group consisting of alkyl radicals having from 1-30 carbon atoms and which form 1:1 liquid adducts with CuAlCl 4 moiety under ambient conditions.
Claim 4
Dependent Claim 62 words
Compositions of matter having the general formula CuAlCl 4 .L wherein L is a phosphine having the formula R 1 R 2 R 3 P, wherein R 1 , R 2 and R 3 are independently selected from the group consisting of alkyl radicals having from 1-30 carbon atoms and which form 1:1 liquid adducts with CuAlCl 4 moiety under ambient conditions.
Claim 5
Dependent Claim 33 words
The compositions of matter of claim 2 wherein R 1 , R 2 and R 3 are independently selected from the group consisting of alkyl radicals having from 3 to 12 carbon atoms.
Claim 6
Dependent Claim 33 words
The compositions of matter of claim 2 wherein R 1 , R 2 and R 3 are independently selected from the group consisting of alkyl radicals having from 4 to 8 carbon atoms.
Claim 7
Dependent Claim 23 words
The compositions of matter described by claim 2 wherein L is further selected from the group consisting of trin-butyl phosphine and tri-n-octyl phosphine.

References Cited (Backward Citations)

US2199944A Cited
US2362219A Cited
US2880223A Cited
US2909544A Cited
US2953589A Cited
US2900295A Cited
US3064025A Cited
US3137692A Cited
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US3517080A Cited
US3732329A Cited
US3772268A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-01-19 1979-07-21 1980-01-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-01-19 1983-07-21 1984-01-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-01-19 1987-07-21 1988-01-20 $7700.00 Window Closed / Lapsed

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