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US3873628A
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Preparation of ortho-alkylated phenols
Assignee: General Electric Co
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Filing: 1971-05-12
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Granted: 1975-03-25
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Expires: 1991-05-12
Abstract
Abstract Ortho-alkylated phenols are prepared by reacting a phenol unsubstituted in at least one ortho position with an alcohol in the presence of a catalyst consisting of a mixture of magnesium oxide and manganese sulfate.
Inventors
- 👤 Sorge Bernardus J Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:09
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
34 words
IN A PROCESS FOR ALKYLATING A PHENOL IN THE ORTHO POSITION WHICH COMPRISES THE VAPOR PHASE REACTION IN THE PRESENCE OF AN ALKYLATION CATALYST, AN ALKYL ALCOHOL AND A PHENOL COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
34 words
IN A PROCESS FOR ALKYLATING A PHENOL IN THE ORTHO POSITION WHICH COMPRISES THE VAPOR PHASE REACTION IN THE PRESENCE OF AN ALKYLATION CATALYST, AN ALKYL ALCOHOL AND A PHENOL COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
13 words
A process as defined in claim 1 wherein said alcohol is methyl alcohol.
Claim 4
Dependent Claim
16 words
A process as defined in claim 1 wherein each R in said phenol compound is hydrogen.
Claim 5
Dependent Claim
13 words
A process as defined in claim 1 wherein said phenol compound is ortho-cresol.
Claim 6
Dependent Claim
18 words
A process as defined in claim 1 wherein said phenol compound is a mixture of phenol and ortho-cresol.
Claim 7
Dependent Claim
23 words
A process as defined in claim 1 wherein the manganese sulfate comprises from 1 to 15 percent by weight of the total catalyst.
Claim 8
Dependent Claim
23 words
A process as defined in claim 1 wherein the manganese sulfate comprises from 2 to 10 percent by weight of the total catalyst.
Claim 9
Dependent Claim
23 words
A process for alkylating a phenol in the ortho position which comprises contacting in the vapor phase a phenol compound of the formula:
Claim 10
Dependent Claim
23 words
A process for alkylating a phenol in the ortho position which comprises contacting in the vapor phase a phenol compound of the formula:
References Cited (Backward Citations)
US3446856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |