US2715147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of substituted cyclooctatetraenes
Assignee: Individual
•
Filing: 1951-01-19
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Granted: 1955-08-09
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Expires: 1971-01-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Cope
- 👤 Mark R Kinter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:42
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/28; C07C2601/00; C07C2601/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE PROCESS OF PREPARING PHENYLCYCLOOCTATETRAENE WHICH COMPRISES HEATING CYCLOOCTATETRAENE IN A SOLUTION OF A REACTANT OF THE FORMULA RM IN WHICH R IS THE PHENYL RADICAL AND M IS A MEMBER OF THE GROUP CONSISTING OF LITHIUM AND SODIUM IN AN INERT ATMOSPHERE TO OBTAIN A MIXTURE OF PHENYLCYCLOOCTATETRAENE AND ORGANOMETALLIC COMPLESES, COOLING THE REACTION PRODUCTS, DECOMPOSINGG THE COMPLEXES SO FORMED BY HYDROLYSIS, AND SEPARATINGG THE PHENYLCYCLOOCTATRAENE FROM THE OTHER REACTION PRODUCT.
Claim 2
Dependent Claim
72 words
THE PROCESS OF PREPARING PHENYLCYCLOOCTATETRAENE WHICH COMPRISES HEATING CYCLOOCTATETRAENE IN A SOLUTION OF A REACTANT OF THE FORMULA RM IN WHICH R IS THE PHENYL RADICAL AND M IS A MEMBER OF THE GROUP CONSISTING OF LITHIUM AND SODIUM IN AN INERT ATMOSPHERE TO OBTAIN A MIXTURE OF PHENYLCYCLOOCTATETRAENE AND ORGANOMETALLIC COMPLESES, COOLING THE REACTION PRODUCTS, DECOMPOSINGG THE COMPLEXES SO FORMED BY HYDROLYSIS, AND SEPARATINGG THE PHENYLCYCLOOCTATRAENE FROM THE OTHER REACTION PRODUCT.
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) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |