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US3864372A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for the production of unsaturated organosilicon compounds

Assignee: Czech Academy of Sciences
•
Filing: 1972-12-01
•
Granted: 1975-02-04
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Expires: 1992-12-01
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Abstract

Abstract Process for the production of unsaturated organosilicon compounds by the reaction of chloro- and alkoxy-substituted silicon hydrides containing one Si-II bond with conjugated dienic hydrocarbons and derivatives thereof, containing at least two C C bonds. The reactants are contacted in the presence of Pd(11) compounds, such as PdCl2, PdBr2, Pd(acetylacetonate)2, compleces of general formula L1L2PdX2 , L3PdX2 , and (L4PdY)2 where L1 and L2 is a tertiary phosphine, preferably triphenylphosphine, or a nitrile, preferably benzonitrile, L3 is a ditertiary phosphine, preferably 1,2bis(triphenylphosphine)ethane, or a dinitrile, preferably Oxylylenedinitrile, L4 is a coordinated alkene or an alkenic fragment, PREFERABLY PI-ALLYL GROUP, X is chlorine or bromine atom, and Y is chlorine atom or acetoxy group. The substances formed by contacting the above defined Pd(11) compounds with organic polymers contain tert.amine, tert. phosphine, or nitrile groups, or these groups in a suitable combination, the preferred polymers being polystyrene, copolymers of styrene with divinylbenzene or with allyl chloride, poly(vinyl chloride), polymethacrylates and their copolymers.

Inventors

  • 👤 Petr Svoboda
  • 👤 Vera Vaisarova
  • 👤 Martin Capka
  • 👤 Jiri Hetflejs
  • 👤 Milos Kraus
  • 👤 Vladimir Bazant

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:44
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J27/00; B01J27/06; B01J27/08; B01J31/22; B01J31/2282; B01J31/2291; B01J31/24; B01J31/2404; B01J31/2409; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14; C07F7/18; C07F7/1804; C07F7/1872; C07F7/1876; H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/34; H03G3/348; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 112 words
A PROCESS FOR THE PRODUCTION OF UNSATURATED ORGANOSILICON COMPOUNDS WHICH COMPRISES CONTACTING A SILICON COMPOUND CONTAINING ONE HYDROGEN ATOM ATTACHED TO SILICON PER MOLECULE, WITH A DIENIC HYDROCARBON CONTAINING CONJUGATED C=C DOUBLE BONDS AND HAVING FROM FOUR TO EIGHT CARBON ATOMS PER MOLECULE IN THE PRESENCE OF A PALLADIUM COMPLEX SELECTED FROM THE GROUP CONSISTING OF L2PDX2, L21PDX2, L3PDXCL2, AND ($-C3H5)PDCL/2 WHERE L IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF TERTIARY PHOSPHINES HAVING AT LEAST ONE PHENYL GROUP ATTACHED TO PHOSPHINES PER MOLECULE, X IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HALOGENS, L1 IS BENZONITRILE, L3 IS 1,2BIS(TRIPHENYLPHOSPHINE) ETHANE OR 1,2BIS(CYANOMETHYL)BENZENE, AND WHERE $-C3H5 IS A PI-ALLYL GROUP.
Claim 2
Dependent Claim 112 words
A PROCESS FOR THE PRODUCTION OF UNSATURATED ORGANOSILICON COMPOUNDS WHICH COMPRISES CONTACTING A SILICON COMPOUND CONTAINING ONE HYDROGEN ATOM ATTACHED TO SILICON PER MOLECULE, WITH A DIENIC HYDROCARBON CONTAINING CONJUGATED C=C DOUBLE BONDS AND HAVING FROM FOUR TO EIGHT CARBON ATOMS PER MOLECULE IN THE PRESENCE OF A PALLADIUM COMPLEX SELECTED FROM THE GROUP CONSISTING OF L2PDX2, L21PDX2, L3PDXCL2, AND ($-C3H5)PDCL/2 WHERE L IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF TERTIARY PHOSPHINES HAVING AT LEAST ONE PHENYL GROUP ATTACHED TO PHOSPHINES PER MOLECULE, X IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HALOGENS, L1 IS BENZONITRILE, L3 IS 1,2BIS(TRIPHENYLPHOSPHINE) ETHANE OR 1,2BIS(CYANOMETHYL)BENZENE, AND WHERE $-C3H5 IS A PI-ALLYL GROUP.
Claim 3
Dependent Claim 21 words
A process for the production of unsaturated organosilicon compounds according to claim 1, wherein the palladium complex has the formula: L2PdX2.
Claim 4
Dependent Claim 21 words
A process for the production of unsaturated organosilicon compounds according to claim 1, wherein the palladium complex has the formula: L21PdX2.
Claim 5
Dependent Claim 21 words
A process for the production of unsaturated organosilicon compounds according to claim 1, wherein the palladium complex has the formula: L3PdXCl2.
Claim 6
Dependent Claim 23 words
A process for the production of unsaturated organosilicon compounds according to claim 1, wherein the palladium complex has the formula: ( pi -C3H5)PdCl/2.
Claim 7
Dependent Claim 57 words
A process for the production of unsaturated organosilicon compounds according to claim 1, wherein the organosilicon compound has the formula: RnSiHCl3 n where R is methyl or ethyl radical and n is equal to zero or to one and is contacted with a conjugated diene selected from the class consisting of 1,3-butadiene, isoprene, piperylene, chloroprene, and 2,3-dimethyl-1,3-butadiene.
Claim 8
Dependent Claim 41 words
A process for the production of unsaturated organosilicon compounds according to claim 1, wherein the organosilicon compound has the formula: (RO) 3SiH where R is a member selected from the class consisting of methyl, ethyl, and propyl radicals and with 1,3-butadiene.

References Cited (Backward Citations)

US3159662A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-02-03 1978-08-05 1979-02-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-02-03 1982-08-05 1983-02-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-02-03 1986-08-05 1987-02-04 $7700.00 Window Closed / Lapsed

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