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US4748262A Expired / Lapsed US ⏱️ 0.0 years remaining

(Phenyl dimethyl carbinyl) silane compound and a method for the preparation thereof

Assignee: Shin-Etsu Chemical Co Ltd
•
Filing: 1987-09-01
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Granted: 1988-05-31
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Expires: 2007-09-01
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Abstract

Abstract The invention provides organosilane compounds of a novel class having one or two (phenyl dimethyl carbinyl) groups bonded to the silicon atom as represented by the general formula (PhMe 2 C) p R q X r Si, in which Ph is a phenyl group, Me is a methyl group, R is a monovalent hydrocarbon group selected from the class consisting of alkyl, alkenyl and aryl groups, X is a halogen atom or an alkoxy group, p is 1 or 2, q is zero, 1 or 2 and r is zero, 1, 2 or 3 with the proviso that p+q+r=4. The compound can be prepared by the reaction of a Grignard reagent PhMe 2 C. MgY, in which Y is a halogen atom, with a silane compound represented by the general formula R q SiX 4-q in an organic solvent.

Inventors

  • 👤 Toshinobu Ishihara
  • 👤 Minoru Takamizawa
  • 👤 Mikio Endo
  • 👤 Toru Kubota

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:34
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/18; C07F7/1804

Claims Analysis

Total Claims: 20
Claim 1
Independent Claim 79 words
A (phenyl dimethyl carbinyl)silane compound represented by the general formula (PhMe.sub.2 C).sub.p R.sub.q X.sub.r Si, in which Ph is a phenyl group, Me is a methyl group, R is a monovalent hydrocarbon group selected from the class consisting of alkyl groups, alkenyl groups and aryl groups, X is a halogen atom or an alkoxy group, p is 1 or 2, q is zero, 1 or 2 and r is zero, 1, 2 or 3 with the proviso that p+q+r=4.
Claim 2
Dependent Claim 79 words
A (phenyl dimethyl carbinyl)silane compound represented by the general formula (PhMe.sub.2 C).sub.p R.sub.q X.sub.r Si, in which Ph is a phenyl group, Me is a methyl group, R is a monovalent hydrocarbon group selected from the class consisting of alkyl groups, alkenyl groups and aryl groups, X is a halogen atom or an alkoxy group, p is 1 or 2, q is zero, 1 or 2 and r is zero, 1, 2 or 3 with the proviso that p+q+r=4.
Claim 3
Dependent Claim 14 words
The (phenyl dimethyl carbinyl)silane compound as claimed in claim 1 wherein p is 1.
Claim 4
Dependent Claim 27 words
The (phenyl dimethyl carbinyl)silane compound as claimed in claim 1 wherein R is selected from the class consisting of methyl, ethyl, vinyl, allyl, phenyl and tolyl groups.
Claim 5
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)dimethyl chlorosilane expres-sed by the structural formula (PhMe 2 C)Me 2 SiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 6
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)dimethyl chlorosilane expres-sed by the structural formula (PhMe 2 C)Me 2 SiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 7
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)methyl dichlorosilane expres-sed by the structural formula (PhMe 2 C)MeSiCl 2 , in which Ph is a phenyl group and Me is a methyl group.
Claim 8
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)methyl dichlorosilane expres-sed by the structural formula (PhMe 2 C)MeSiCl 2 , in which Ph is a phenyl group and Me is a methyl group.
Claim 9
Dependent Claim 26 words
(Phenyl dimethyl carbinyl)methyl phenyl chlorosilane expressed by the structural formula (PhMe 2 C)MePhSiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 10
Dependent Claim 26 words
(Phenyl dimethyl carbinyl)methyl phenyl chlorosilane expressed by the structural formula (PhMe 2 C)MePhSiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 11
Dependent Claim 28 words
(Phenyl dimethyl carbinyl)methyl dimethoxy silane expressed by the structural formula (PhMe 2 C)MeSi(OMe) 2 , in which Ph is a phenyl group and Me is a methyl group.
Claim 12
Dependent Claim 28 words
(Phenyl dimethyl carbinyl)methyl dimethoxy silane expressed by the structural formula (PhMe 2 C)MeSi(OMe) 2 , in which Ph is a phenyl group and Me is a methyl group.
Claim 13
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)phenyl dichlorosilane expres-sed by the structural formula (PhMe 2 C)PhSiCl 2 , in which Ph is a phenyl group and Me is a methyl group.
Claim 14
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)phenyl dichlorosilane expres-sed by the structural formula (PhMe 2 C)PhSiCl 2 , in which Ph is a phenyl group and Me is a methyl group.
Claim 15
Dependent Claim 28 words
(Phenyl dimethyl carbinyl)methyl vinyl chlorosilane expressed by the structural formula (PhMe 2 C)(CH 2 ═CH)MeSiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 16
Dependent Claim 28 words
(Phenyl dimethyl carbinyl)methyl vinyl chlorosilane expressed by the structural formula (PhMe 2 C)(CH 2 ═CH)MeSiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 17
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)diphenyl chlorosilane expres-sed by the structural formula (PhMe 2 C)Ph 2 SiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 18
Dependent Claim 27 words
(Phenyl dimethyl carbinyl)diphenyl chlorosilane expres-sed by the structural formula (PhMe 2 C)Ph 2 SiCl, in which Ph is a phenyl group and Me is a methyl group.
Claim 19
Independent Claim 149 words
A method for the preparation of a (phenyl dimethyl carbinyl)silane compound represented by the general formula (PhMe.sub.2 C).sub.p R.sub.q X.sub.r Si, in which Ph is a phenyl group, Me is a methyl group, R is a monovalent hydrocarbon group selected from the class consisting of alkyl groups, alkenyl groups and aryl groups, X is a halogen atom or an alkoxy group, p is 1 or 2, q is zero, 1 or 2 and r is zero, 1, 2 or 3 with the proviso that p+q+r=4, which comprises reacting a Grignard reagent of phenyl dimethyl carbinyl magnesium halide represented by the general formula PhMe.sub.2 C.MgY, in which Ph and Me each have the same meaning as defined above and Y is a halogen atom, with a silane compound represented by the general formula R.sub.q SiX.sub.4-q, in which each symbol has the same meaning as defined above, in an organic solvent.
Claim 20
Independent Claim 149 words
A method for the preparation of a (phenyl dimethyl carbinyl)silane compound represented by the general formula (PhMe.sub.2 C).sub.p R.sub.q X.sub.r Si, in which Ph is a phenyl group, Me is a methyl group, R is a monovalent hydrocarbon group selected from the class consisting of alkyl groups, alkenyl groups and aryl groups, X is a halogen atom or an alkoxy group, p is 1 or 2, q is zero, 1 or 2 and r is zero, 1, 2 or 3 with the proviso that p+q+r=4, which comprises reacting a Grignard reagent of phenyl dimethyl carbinyl magnesium halide represented by the general formula PhMe.sub.2 C.MgY, in which Ph and Me each have the same meaning as defined above and Y is a halogen atom, with a silane compound represented by the general formula R.sub.q SiX.sub.4-q, in which each symbol has the same meaning as defined above, in an organic solvent.

References Cited (Backward Citations)

US3334122A Cited
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US4107439A Cited
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US4135051A Cited
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US4469881A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-05-31 1991-11-30 1992-05-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-05-31 1995-11-30 1996-05-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-05-31 1999-11-30 2000-05-31 $7700.00 Window Closed / Lapsed

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