Patent US3869491A successfully refreshed from Google Patents.
US3869491A
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Halosulfonyl sulfooxonium compounds
Assignee: Occidental Chemical Corp
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Filing: 1971-03-10
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Granted: 1975-03-04
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Expires: 1991-03-10
Abstract
Abstract Polyhaloaralkyl (halosulfonyl) sulfooxonium inner salts are prepared by the reaction of benzal halides with sulfur trioxide. The oxonium salts are readily hydrolyzed to afford aldehydes useful in the production of flame retardant polymers. The aldehyde products of oxonium salt hydrolysis may be oxidized to the corresponding carboxylic acid derivatives which are useful pesticides.
Inventors
- 👤 Victor Mark
- 👤 Carol A Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:29
CPC Classifications
C; C07; C07C; C07C381/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
8 words
The compound of claim 1 of the formula
Claim 4
Dependent Claim
8 words
The compound of claim 1 of the formula
Claim 5
Dependent Claim
8 words
The compound of claim 1 of the formula
Claim 6
Dependent Claim
8 words
The compound of claim 1 of the formula
Claim 7
Dependent Claim
8 words
The compound of claim 1 of the formula
Claim 8
Dependent Claim
8 words
The compound of claim 1 of the formula
Claim 9
Dependent Claim
9 words
A process for making a compound of the formula
Claim 10
Dependent Claim
9 words
A process for making a compound of the formula
Claim 11
Dependent Claim
16 words
The process of claim 8 wherein an excess of neat, liquid sulfur trioxide is the reactant.
Claim 12
Dependent Claim
27 words
The process of claim 8 in which the sulfur trioxide reactant is employed in a diluent selected from the group consisting of sulfuric acid and a perhaloalkane.
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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |