US3662007A
Expired / Lapsed
US
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Process for preparing dihydro-beta-santalol from 3-endo-methyl-3-exo(4'-methyl-5'-hydroxypentyl)norcamphor
Assignee: Procter and Gamble Co
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Filing: 1968-11-26
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Granted: 1972-05-09
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Expires: 1988-11-26
Abstract
Abstract A PROCESS FOR PREPARING DIHYDRO-B-SANTALOL FROM 3ENDO-METHYL-3-EXO(4''-METHYL - 5'' - HYDROXYPENTYL) NORCAMPHOR COMPRISING THE STEPS OF (1) REACTING 1-ENDO-METHYL-3-EXO(4''-METHYL - 5'' - HYDROXYPENTYL)NORCAMPHOR WITH EITHER BORIC ACID OR ANHYDRIDE TO OBTAIN THE BORATE ESTER OF 3-ENDO-METHYL-3-EXO(4''-METHYL - 5'' - HYDROXYPENTYL)NORCAMPHOR, AND (2) REACTING THE BORATE ESTER REACTION PRODUCT OF STEP (1) WITH A PHOSPHORUS COMPOUND SUCH AS METHYLTRIPHENYLPHOSPHONIUM BROMIDE AND SUBSEQUENTLY HYDROLYZING THE REACTION PRODUCT WITH WATER TO OBTAIN DIHYDRO-B-SANTALOL IS DISCLOSED. DIHYDRO-B-SANTALOL IS USEFUL AS A PERFUME COMPONENT.
Inventors
- 👤 Wayne I Fanta
- 👤 William F Erman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:23
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C11; C11B; C11B9/00; C11B9/0042; C11B9/0046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |