US3856843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing silylether
Assignee: Sagami Chemical Research Institute
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Filing: 1973-06-13
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Granted: 1974-12-24
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Expires: 1993-06-13
Abstract
Abstract A silylether is produced by reacting a carbonyl compound with an organosilicon hydride in the presence of a phosphine halo-rhodium catalyst.
Inventors
- 👤 Y Nagai
- 👤 I Ojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C07F7/1872; C07F7/188; C08L; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
A PROCESS FOR PREPARING A SILYETHER WHICH COMPRISES REACTING A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALDEHYDES, AROMATIC ALDEHYDES, ALIPHATIC KETONES, AROMATIC KETONES, TERPENE ALDEHYDES, AND TERPENE KETONES WITH AN ORGANOSILICON HYDRIDE SELECTED FROM THE GROUP CONSISTING OF TRIALKYLSILANES, DIALKYLSILANES, MONOALKYLSILANES, TRIPHENYLSILANES, PHENYLDIALKYLSILANES, DIPHENYLALKYLSILANES, DIAPHENYLSILANES, PHENYLALKYLSILANES AND PHENYLSILANES IN THE PRESENCE OF A TRIS (TRIPHENYLPHOSPHINE) CHLOROHODIUM CATALYST.
Claim 2
Dependent Claim
60 words
A PROCESS FOR PREPARING A SILYETHER WHICH COMPRISES REACTING A CARBONYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALDEHYDES, AROMATIC ALDEHYDES, ALIPHATIC KETONES, AROMATIC KETONES, TERPENE ALDEHYDES, AND TERPENE KETONES WITH AN ORGANOSILICON HYDRIDE SELECTED FROM THE GROUP CONSISTING OF TRIALKYLSILANES, DIALKYLSILANES, MONOALKYLSILANES, TRIPHENYLSILANES, PHENYLDIALKYLSILANES, DIPHENYLALKYLSILANES, DIAPHENYLSILANES, PHENYLALKYLSILANES AND PHENYLSILANES IN THE PRESENCE OF A TRIS (TRIPHENYLPHOSPHINE) CHLOROHODIUM CATALYST.
Claim 3
Dependent Claim
49 words
The process of claim 1, wherein the carbonyl compound is selected from the group consisting of acetoaldehyde, benzaldehyde, acetone, acetophenone, mesityloxide, phenylvinylketone, crotonaldehyde, cinnamaldehyde, camphor ketone, menthone, 3-enolamino camphor ketone, citral, nonadienal, farnesol, perillylaldehyde, citrylideneacetaldehyde, citrylidenepropionaldehyde, cyclocitrylideneacetaldehyde, cycloitrylidenepropionealdehyde, Alpha -ionone, Beta -ionone, gamma -ionone, carvone, phorone, camphorenalketones and pseudo-ionone.
Claim 4
Dependent Claim
23 words
The process of claim 1, wherein the alkyl portion of the silanes is a lower alkyl group having 1 - 7 carbon atoms.
Claim 5
Dependent Claim
34 words
The process of claim 1, wherein the tris(triphenylphosphine) chlororhodium catalyst is added to said carbonyl compound and said organosilicon hydride in amounts ranging from 0.01 - 1.0 mole percent based on said carbonyl compound.
Claim 6
Dependent Claim
18 words
The process of claim 1, wherein said carbonyl compound reacts with trialkylsilane in the presence of tris(triphenylphosphine) chlororhodium.
Claim 7
Dependent Claim
37 words
The process of claim 1, wherein a terpene alcohol is prepared by first preparing a silylether by reacting a terpene ketone with said organosilicon hydride in the presence of tris(triphenylphosphine) chlororhodiuM(I) and then hydrolyzing said prepared silylether.
Claim 8
Dependent Claim
31 words
The process of claim 1, wherein an Alpha , Beta -unsaturated terpene carbonyl compound is reacted with an organosilicon hydride in the presence of tris(triphenylphosphine) chlororhodium and the product is hydrolyzed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |