US3076848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for preparing orthoalkyl thiophenols
Assignee: Consolidation Coal Co
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Filing: 1960-11-21
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Granted: 1963-02-05
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert J Laufer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:14
CPC Classifications
C; C07; C07C; C07C323/00; C07C321/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF SUBSTITUTING THE HYDROGEN ATOM IN AN ORTHO POSITION OF A THIOPHENOL BY A NON-TERITARY ALKYL GROUP WHICH COMPRISES ALKYLATING IN ALKYLATABLE THIOPHENOL CONTAINING A HYDROGEN ATOM IN AN ORTHO POSITION WITH A MONOOLEFINIC HYDROCARBON ALKYLATING AGENT, IN WHICH THE ALKYL SUBSTITUENT FORMED IS A NON-TERTIARY ALKYL GROUP, UNDER RING ALKYLATING CONDITIONS IN THE PRESENCE OF A CATALYST SELECTED FROM THE CLASS CONSISTING OF ALUMINUM CHLORIDE, ALUMINUM BROMIDE, ALUMINUM IODIDE, ZIRCONIUM TETRACHLORIDE, TITANIUM TETRACHLORIDE, DIHYDROXYFLUOBORIC ACID, HYDROGEN FLUORIDE, AND AQUEOUS HYDROGEN FLUORIDEBORON TRIFLUORIDE COMPLEX SO THAT THERE OCCURS SUBSTANTIAL SUBSTITUTION BY THE NON-TERTIARY ALKYL GROUP IN AN ORTHO POSITION IN ADDITION TO S-ALKYLATION.
Claim 2
Dependent Claim
105 words
THE PROCESS OF SUBSTITUTING THE HYDROGEN ATOM IN AN ORTHO POSITION OF A THIOPHENOL BY A NON-TERITARY ALKYL GROUP WHICH COMPRISES ALKYLATING IN ALKYLATABLE THIOPHENOL CONTAINING A HYDROGEN ATOM IN AN ORTHO POSITION WITH A MONOOLEFINIC HYDROCARBON ALKYLATING AGENT, IN WHICH THE ALKYL SUBSTITUENT FORMED IS A NON-TERTIARY ALKYL GROUP, UNDER RING ALKYLATING CONDITIONS IN THE PRESENCE OF A CATALYST SELECTED FROM THE CLASS CONSISTING OF ALUMINUM CHLORIDE, ALUMINUM BROMIDE, ALUMINUM IODIDE, ZIRCONIUM TETRACHLORIDE, TITANIUM TETRACHLORIDE, DIHYDROXYFLUOBORIC ACID, HYDROGEN FLUORIDE, AND AQUEOUS HYDROGEN FLUORIDEBORON TRIFLUORIDE COMPLEX SO THAT THERE OCCURS SUBSTANTIAL SUBSTITUTION BY THE NON-TERTIARY ALKYL GROUP IN AN ORTHO POSITION IN ADDITION TO S-ALKYLATION.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |