Patent US173226A successfully refreshed from Google Patents.
Patent US3766209A successfully refreshed from Google Patents.
US3766209A
Expired / Lapsed
US
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Method for the preparation of juvenile hormone mimics
Assignee: Eli Lilly and Co
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Filing: 1971-10-08
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Granted: 1973-10-16
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Expires: 1991-10-08
Abstract
Abstract JUVENILE HORMONE MIMICS HAVING THE FORMULA Y-(CH2)2-CH(-Z1)-C(-Z2)(-R1)-(CH2)2-CH(-Z3)-C(-Z4)(-R2)-R3 WHEREIN Y IS FURYL, THIENY, NAPHTHYL, PHENYL OR SUBSTITUTED PHENYL; R1 R2 AND R3 ARE EACH C1-C3 ALKYL; AND Z1, Z2, Z3 AND Z4 SEPARATELY ARE EACH HYDROGEN OR Z1 AND Z2 TOGETHER AND Z3 AND Z4 TOGETHER ARE A CARBON TO CARBON BOND, ARE PREPARED FROM ALDEHYDES HAVING THE FORMULA Y-CHO BY A THREE STEP PROCESS INVOLVING THE PREPARATION OF A DITHIANE FROM THE ALDEHYDE, REACTION OF THE DITHIANE WITH AN ORGANIC HALIDE AND REMOVAL OF THE DITHIANE RING BY REDUCTION. NOVEL SUBSTITUTED DITHIANES ARE OBTAINED AS INTERMEDIATES IN THE PROCESS.
Inventors
- 👤 T Emmick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:46
CPC Classifications
A; A01; A01N; A01N49/00; C; C07; C07D; C07D339/00; C07D339/08
Claims Analysis
Total Claims: 0
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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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |