US3970689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercapto alcohols and mercaptoalkyl esters
Assignee: Polaks Frutal Works BV
•
Filing: 1973-04-04
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Granted: 1976-07-20
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Expires: 1993-04-04
Abstract
Abstract New compounds having the formula ##EQU1## wherein R 1 represents a hydrocarbon moiety having from 1 to 7 carbontoms, R 2 is hydrogen, methyl or ethyl, and R 3 is hydrogen, formyl or acetyl. The compounds are useful in the preparation, modification and intensification of a great variety of flavor and perfume compositions.
Inventors
- 👤 Jan Stoffelsma
- 👤 Jacob Pypker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:52
CPC Classifications
C; C07; C07C; C07C327/00; A; A23; A23L; A23L27/00; A23L27/20; A23L27/202; A23L27/2022; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/32; C07C323/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
36 words
Compounds having the formula: ##EQU5## wherein R 1 is methyl, R 2 is selected from the group consisting of hydrogen and methyl and R 3 is selected from the group consisting of hydrogen, formyl and acetyl.
Claim 2
Dependent Claim
36 words
Compounds having the formula: ##EQU5## wherein R 1 is methyl, R 2 is selected from the group consisting of hydrogen and methyl and R 3 is selected from the group consisting of hydrogen, formyl and acetyl.
Claim 3
Dependent Claim
1 words
3-Mercapto-3-methylbutanol.
Claim 4
Dependent Claim
1 words
3-Mercapto-3-methylbutanol.
Claim 5
Dependent Claim
2 words
3-Mercapto-3-methylbutyl formate.
Claim 6
Dependent Claim
2 words
3-Mercapto-3-methylbutyl formate.
Claim 7
Dependent Claim
2 words
3-Mercapto-3-methylbutyl acetate.
Claim 8
Dependent Claim
2 words
3-Mercapto-3-methylbutyl acetate.
Claim 9
Dependent Claim
1 words
4-Mercapto-4-methylpentan-2-ol.
Claim 10
Dependent Claim
1 words
4-Mercapto-4-methylpentan-2-ol.
Claim 11
Dependent Claim
2 words
4-Mercapto-4-methylpent-2-yl formate.
Claim 12
Dependent Claim
2 words
4-Mercapto-4-methylpent-2-yl formate.
Claim 13
Dependent Claim
2 words
4-Mercapto-4-methylpent-2-yl acetate.
Claim 14
Dependent Claim
2 words
4-Mercapto-4-methylpent-2-yl acetate.
Claim 15
Dependent Claim
66 words
A process for producing mercaptoalkyl acetates, which comprises adding thioacetic acid to a compound having the formula ##EQU6## wherein R 1 is methyl, and R 2 is selected from the group consisting of hydrogen and methyl to produce a β-acetylthiocarbonyl compound having the formula ##EQU7## treating the resulting β-acetylthiocarbonyl compound with sodium borohydride to form a compound having the formula ##EQU8## wherein R 3 represents acetyl.
Claim 16
Dependent Claim
66 words
A process for producing mercaptoalkyl acetates, which comprises adding thioacetic acid to a compound having the formula ##EQU6## wherein R 1 is methyl, and R 2 is selected from the group consisting of hydrogen and methyl to produce a β-acetylthiocarbonyl compound having the formula ##EQU7## treating the resulting β-acetylthiocarbonyl compound with sodium borohydride to form a compound having the formula ##EQU8## wherein R 3 represents acetyl.
Claim 17
Dependent Claim
27 words
A process according to claim 8, wherein the β-acetylthiocarbonyl compound is treated with sodium borohydride in an alkaline medium to form the compound having the formula I.
References Cited (Backward Citations)
US2423641A
Cited
US2683721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |