US4148696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical oxidation of activated alkyl aromatic compounds
Assignee: Honeywell UOP LLC
•
Filing: 1978-03-20
•
Granted: 1979-04-10
•
Expires: 1998-03-20
Abstract
Abstract The electrochemical oxidation of activated alkyl substituted aromatic compounds in which the alkyl substituent is acyloxylated in a direct oxidation process may be effected by treating an activated alkyl substituted aromatic compound with a fatty acid, an alkali metal or alkaline earth metal salt thereof and a phase transfer agent in an electrochemical cell to form oxidative products of the starting compound.
Inventors
- 👤 Mark A. Halter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:49
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/23; C25B3/01; C25B3/07
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
A process for the electrochemical oxidation of an activated alkyl substituted aromatic compound which comprises subjecting said compound to an electrochemical oxidation in an electrochemical cell in the presence of a fatty acid, an alkali metal or alkaline earth metal salt thereof and a phase transfer agent comprising a symmetrical or asymmetrical tetraalkyl nitrogen or phosphorous base salt containing from 1 to about 20 carbon atoms in each chain, and recovering the resultant oxidative products.
Claim 2
Dependent Claim
75 words
A process for the electrochemical oxidation of an activated alkyl substituted aromatic compound which comprises subjecting said compound to an electrochemical oxidation in an electrochemical cell in the presence of a fatty acid, an alkali metal or alkaline earth metal salt thereof and a phase transfer agent comprising a symmetrical or asymmetrical tetraalkyl nitrogen or phosphorous base salt containing from 1 to about 20 carbon atoms in each chain, and recovering the resultant oxidative products.
Claim 3
Dependent Claim
50 words
The process as set forth in claim 1 in which said electrochemical 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 500 milliamps/cm 2 .
Claim 4
Dependent Claim
43 words
The process as set forth in claim 1 in which said electrochemical oxidation is effected at a temperature in the range of from about 0° to about 100° C. and a pressure in the range of from about atmospheric to about 10 atmospheres.
Claim 5
Dependent Claim
19 words
The process as set forth in claim 1 in which said phase transfer agent is a tetraalkyl ammonium salt.
Claim 6
Dependent Claim
18 words
The process as set forth in claim 1 in which said phase transfer agent is tetraalkyl phosphonium salt.
Claim 7
Dependent Claim
17 words
The process as set forth in claim 4 in which said tetraalkyl ammonium salt is lauryltrimethylammonium chloride.
Claim 8
Dependent Claim
24 words
The process as set forth in claim 1 in which said fatty acid is propionic acid and said alkali metal salt is sodium propionate.
Claim 9
Dependent Claim
24 words
The process as set forth in claim 1 in which said fatty acid is isovaleric acid and said alkali metal salt is sodium isovalerate.
Claim 10
Dependent Claim
28 words
The process as set forth in claim 1 in which said activated alkyl substituted aromatic compound is p-methoxytoluene and said oxidative products are anisic aldehyde and anisic alcohol.
Claim 11
Dependent Claim
26 words
The process as set forth in claim 1 in which said activated alkyl substituted aromatic compound is p-t-butyltoluene and said oxidative products are p-t-butylbenzaldehyde and p-t-butylbenzylalcohol.
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) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |