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US4558146A
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Process for preparing vinylaminosilanes
Assignee: OSI Specialties Inc
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Filing: 1985-01-31
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Granted: 1985-12-10
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Expires: 2005-01-31
Abstract
Abstract A process for preparing vinylaminosilanes in which an aminosilane of the formula HSi(NRR') x (R") 3-x is reacted with an alkyne of the formula R"'C.tbd.CH in which R and R" are each saturated or unsaturated aliphatic hydrocarbon radicals or an aromatic hydrocarbon radical, R' and R"' are the same or different and are each hydrogen or R and x is an integer from 1 to 3, in the presence of a platinum hydrosilation catalyst at reaction temperatures above about 180° C.
Inventors
- 👤 Bernard Kanner
- 👤 Jennifer M. Quirk
- 👤 Arthur P. De Monte
- 👤 Kunj R. Mehta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
Process for preparing vinylaminosilanes by reacting an aminosilane of the general formula I: HSi(NRR').sub.x (R").sub.3-x [I] with an alkyne of the general formula II: R"'C.tbd.CH [II] wherein R' and R"' are the same or different and are each hydrogen, a saturated or unsaturated aliphatic hydrocarbon radical or an aromatic hydrocarbon radical, R and R" are the same or different and are each a saturated or unsaturated aliphatic hydrocarbon radical or an aromatic hydrocarbon radical and x is an integer from 1 to 3, in the presence of a platinum hydrosilation catalyst at a reaction temperature greater than 180° C. to form a vinylaminosilane of the general formula III: R"'CH═CHSi(NRR').sub.x (R").sub.3-x wherein R, R', R", R"' and x are as before.
Claim 2
Dependent Claim
120 words
Process for preparing vinylaminosilanes by reacting an aminosilane of the general formula I: HSi(NRR').sub.x (R").sub.3-x [I] with an alkyne of the general formula II: R"'C.tbd.CH [II] wherein R' and R"' are the same or different and are each hydrogen, a saturated or unsaturated aliphatic hydrocarbon radical or an aromatic hydrocarbon radical, R and R" are the same or different and are each a saturated or unsaturated aliphatic hydrocarbon radical or an aromatic hydrocarbon radical and x is an integer from 1 to 3, in the presence of a platinum hydrosilation catalyst at a reaction temperature greater than 180° C. to form a vinylaminosilane of the general formula III: R"'CH═CHSi(NRR').sub.x (R").sub.3-x wherein R, R', R", R"' and x are as before.
Claim 3
Dependent Claim
11 words
The process of claim 1 in which the aminosilane is tris(dimethylamino)silane.
Claim 4
Dependent Claim
11 words
The process of claim 1 in which the alkyne is acetylene.
Claim 5
Dependent Claim
12 words
The process of claim 1 in which the catalyst is chloroplatinic acid.
Claim 6
Dependent Claim
14 words
The process of claim 1 in which the catalyst is bis (triphenylphosphine)platinum (II) chloride.
Claim 7
Dependent Claim
18 words
The process of claim 1 in which the reaction temperature is from about 220° C. to 250° C.
Claim 8
Dependent Claim
17 words
The process of claim 1 in which the molar ratio of aminosilane to alkyne is about 1:1.
Claim 9
Dependent Claim
27 words
The process of claim 1 in which the catalyst is employed in amounts from 1.0×10 -5 mole percent to 5.0×10 -2 mole percent based on the aminosilane.
Claim 10
Dependent Claim
16 words
The process of claim 1 in which the reaction is carried out in a hydrocarbon solvent.
Claim 11
Dependent Claim
11 words
The process of claim 9 in which the solvent is triisopropylbenzene.
Claim 12
Dependent Claim
19 words
The process of claim 1 in which the alkyne is added to the reaction at greater than atmospheric pressure.
Claim 13
Dependent Claim
22 words
The process of claim 1 in which the alkyne is added to the reaction at pressures from about 100 to 150 psig.
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) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |