CA1104092A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Electrochemical oxidation of alkoxy-substituted aromatic compounds
Assignee: Honeywell UOP LLC
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Filing: 1977-12-19
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Granted: 1981-06-30
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Expires: 1997-12-19
Abstract
Abstract ELECTROCHEMICAL OXIDATION OF ALKOXY-SUBSTITUTED AROMATIC COMPOUNDS ABSTRACT OF THE DISCLOSURE The electrochemical oxidation of alkoxy-substituted aromatic compounds may be ejected by treating the aromatic compound with propionic acid in the presence of a phase transfer agents said reaction being effected in an electrochemical cell. In the present invention the position isomer which comprises the para compound is prepared in a favorable ratio over the ortho isomer by treating a substituted aromatic compound such as ani-sole with propionic acid in an electrochemical cell whereby the desired oxidized product is recovered on the anode.
Inventors
- 👤 Mark A. Halter
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-03 18:16
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/23; C25B3/01; C25B3/07
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
71 words
In a process for the electrochemical oxidation of an alkoxy-substituted aromatic compound, the improvement which comprises effecting. said electrochemical oxidation in an electrochemical cell in the presence of propionic acid, an alkali metal or alkaline earth metal salt thereof and a phase transfer agent comprising a symmetrical or asymmetric tetraalkylammoniumor phosphonium-based salt containing from 1 to about 20 carbon atoms in the chain, and recovering the resultant propionyloxylated alkoxy-sub-stituted aromatic compound.
Claim 2
Dependent Claim
71 words
In a process for the electrochemical oxidation of an alkoxy-substituted aromatic compound, the improvement which comprises effecting. said electrochemical oxidation in an electrochemical cell in the presence of propionic acid, an alkali metal or alkaline earth metal salt thereof and a phase transfer agent comprising a symmetrical or asymmetric tetraalkylammoniumor phosphonium-based salt containing from 1 to about 20 carbon atoms in the chain, and recovering the resultant propionyloxylated alkoxy-sub-stituted aromatic compound.
Claim 3
Dependent Claim
51 words
The process as set forth in Claim 1 in which said electro-chemical oxidation is effected utilizing electrical energy which includes a voltage in the range of from about 2 to about 20 volts and a current density in the range of from about 20 to about 200 milliamps per square centimeter.
Claim 4
Dependent Claim
16 words
The process as set forth in Claim 1 being effected at ambient temperature and atmospheric pressure.
Claim 5
Dependent Claim
17 words
The process as set forth in Claim l in which said transfer agent is a tetraalkylammonium salt.
Claim 6
Dependent Claim
17 words
The process as set forth in Claim 1 in which said transfer agent is a tetraalkylphosphonium salt.
Claim 7
Dependent Claim
15 words
The process as set forth in Claim 4 in which said salt is tetrapropylammonium hydroxide.
Claim 8
Dependent Claim
15 words
The process as set forth in Claim 4 in which said salt is dodecyltrimethylammonium chloride.
Claim 9
Dependent Claim
15 words
The process as set forth in Claim 4 in which said salt is tetra-t-butylammonium sulfate.
Claim 10
Dependent Claim
15 words
The process as set forth in Claim 5 in which said salt is tetraethylphosphonium chloride
Claim 11
Dependent Claim
15 words
The process as set forth in Claim 5 in which said salt is diethyldi-t-butylphosphonium sulfate.
Claim 12
Dependent Claim
17 words
The process as set forth in Claim 1 in which said alkali metal salt is sodium propionate.
Claim 13
Dependent Claim
17 words
The process as set forth in Claim 1 in which said alkali metal salt is potassium propionate.
Claim 14
Dependent Claim
23 words
The process as set forth in Claim 1 in which said alkoxy-substituted aromatic compound is anisole and said propionyloxylated alkoxy-substituted compound is propionyloxyanisole.
References Cited (Backward Citations)
No citation records indexed.
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