US3689601A
Expired / Lapsed
US
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Phosphonium salts and process for making same
Assignee: Wyeth Holdings LLC
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Filing: 1969-11-17
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Granted: 1972-09-05
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Expires: 1989-11-17
Abstract
Abstract Organo phosphonium salts of the formula:
Inventors
- 👤 Martin Grayson
- 👤 Patricia Tarpey Keough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C08K5/50; C08K5/5393
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
43 words
A compound of claim 1 having the formula wherein RV and RVI each represent lower alkyl, RVII represents a member selected from the group consisting of hydrogen and lower alkyl, and R1, R2, R3, and X are the same as in claim 1.
Claim 2
Dependent Claim
2 words
The compound
Claim 3
Dependent Claim
44 words
A compound of claim 1 having the formula wherein a is a value from 0 or 1, inclusive, R'''''' is a member selected from the group consisting of lower alkyl and phenyl, and R1, R2, R3, and X are the same in claim 1.
Claim 4
Dependent Claim
2 words
The compound
Claim 5
Dependent Claim
2 words
The compound
Claim 6
Dependent Claim
141 words
A process for preparing a compound of the formula (R1R2R3PCH2CH2Q)+.X-wherein R1, R2, and R3 each represent alkyl C1-C16, lower alkoxy substituted alkyl C1-C16, cycloloweralkyl, phenyl, naphthyl, or substituted phenyl in which the substituents are lower alkyl, lower alkoxy or halogen; X is halogen and Q is a radical defined below, said process comprising reacting a phosphonium salt having the formula with a reagent selected from the group consisting of beta-substituted ketones of the formula in which RV and RVI each represent lower alkyl and RVII represents hydrogen or lower alkyl said selected reagent having an electronegative group causing a hydrogen atom of the reagent to be replaceable, the selected reagent being represented by the formula HQ wherein H represents said replaceable hydrogen atom and Q represents the radical that remains from the selected reagent after said hydrogen atom has been replaced.
References Cited (Backward Citations)
US2535175A
Cited
US2651656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |