US3843726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-amino-2-benzylthio-methyl-1,3-alkanedials
Assignee: Phillips Petroleum Co
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Filing: 1972-01-03
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Granted: 1974-10-22
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Expires: 1992-01-03
Abstract
Abstract Azadioxabicyclooctane compounds are prepared by the reaction of tris(hydroxyhydrocarbyl)methylamine with an aldehyde. These compounds can then be halogenated to the corresponding halogensubstituted acid salt followed by hydrolysis to form 2-amino-2halohydrocarbyl-1,3-propanediols. The diols can then be reacted with a hydrosulfide salt to form a 2-amino-2-mercaptohydrocarbyl1,3-propanediol which is a known anti-radiation compound. The diols can also be reacted with benzyl mercaptide to form the 2amino-2-benzylthiohydrocarbyl-1,3-propanediol which under debenzylation conditions also forms the 2-amino-2mercaptohydrocarbyl-1,3-propanediol.
Inventors
- 👤 R Cobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:06
CPC Classifications
C; C07; C07D; C07D498/00; C07D498/02; C07D498/04; C07C; C07C323/00; C07C323/23; C07C323/24; C07C323/25
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
11 words
AS A COMPOSITION OF MATTER, A 1,3-PROPANEDIOL COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
11 words
AS A COMPOSITION OF MATTER, A 1,3-PROPANEDIOL COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
9 words
A composition according to claim 1 which is 2-amino-2-benzylthiomethyl-1,3-propanediol.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |