- Production method of chloropropylmethyldichlorosilane
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The invention relates to a production method of chloropropylmethyldichlorosilane and belongs to the field of organic chemistry. The production method comprises the following steps: firstly, enabling chloroplatinic acid to react with isopropanol, acetic acid, phenyl silicone oil and the like; secondly, neutralizing by adopting sodium acetate, enabling part of the isopropanol complexed with platinum to be completely substituted under the alkaline conditions, thereby enabling a ligand of a catalyst to be directly substituted with the acetic acid and the phenyl silicone oil; after substitution, by taking tributylamine as a promoter, avoiding the inactivation of the catalyst in the addition reaction; during synthesis, reacting by adopting mixed feeding, adding at low temperature, and raising the temperature for continuous reaction after most reaction is finished; after the reaction is finished, completely distilling low boiling point products at normal pressure, and then distilling foreshot under vacuum conditions; after the foreshot are distilled, obtaining a chloropropylmethyldichlorosilane product with the content of 99.5 percent or above. The synthesized product disclosed by the invention has the advantages of high yield, low capacity, fewer byproducts, low requirement on equipment, and the like; in addition, the production method is relatively-simple in industrial production.
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Paragraph 0015; 0016
(2017/02/17)
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- METHOD FOR HYDROSILYLATION USING A PLATINUM CATALYST
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The selectivity of hydrosilylation of unsaturated organic compounds by Si—H functional organosilicon compounds is improved by use of a silyl polyphosphate ester in conjunction with a platinum hydrosilylation catalyst.
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Page/Page column 4
(2013/02/27)
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- Continuous Preparation of Organosilanes
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The invention relates to a process for the continuous preparation of organosilanes in a reactive distillation column, wherein a homogenous hydrosilylation catalyst is introduced into the column.
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Page/Page column 4-5
(2008/06/13)
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- Continuous hydrosilylation process
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Continuous hydrosilylation of compounds (A) bearing C—C multiple bonds by means of silicon compounds (B) having Si—H groups, in which the reaction components (A) and (B) are reacted continuously in an integrated loop-tube reactor, with reaction mixture being conveyed from the tube into the loop and back again so that a section of the tube is part of the loop circuit, provides a highly controllable reaction process with high product yields.
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Page/Page column 4-5
(2008/06/13)
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- The hydrosilylation of propylene
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The reactions of separate and competitive hydrosilylation of propylene with HSiCl3, MeSiHCl2, Me2SiHCl, and MePh2SiH in the presence of the Speier catalyst (SC) with different additives and a catalyst obtained from SC and propylene were studied. A mutual influence of the hydrosilanes in the competitive reactions was found. The influence of various additives to SC on the process was considered.
- Chernyshev,Belyakova,Yagodina,Nikitinskii,Bykovchenko
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p. 1992 - 1995
(2007/10/03)
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- The synthesis of -substituted dialkyldichlorosilanes and their conversion into polysiloxanes
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Attack of the oxyl (CF3)2NO. (1) on an ethyl group of the silane Et2SiCl2 occurs at both the α- and β-positions relative to silicon (ratio 31:45), whereas with the silane PrnSiMeCl2 attack takes place at the β-position of the propyl group.With the disilane Me3SiCH2SiMe3, the mojor silicon-containing products formed from treatment with oxyl 1 are Me3SiF, (CF3)2NOSiMe3 and Me3SiSiMe3.Speier-catalysed (H2PtCl6) addition of the silane HSiCl2X (X = Me and Cl) to the alkene (CF3)2NOCH2CH=CH2 gives the adducts (CF3)2NOCH2CH2CH2SiCl2X (29, X = Me) and (28, X = Cl)in high yield.The substituted dichlorosilanes (CF3)2NOCH2CH2SiEtCl2 (9), (CF3)2NOCHMeCH2SiMeCl2 (14) and (CF3)2NOCH2CH2CH2SiMeCl2 (29) are converted into corresponding polysiloxanes ("prepolymers" of low molecular weight) by reaction with reagents including water, acid, base and metal oxides; equilibration of the polysiloxane "prepolymer" 38, derived from dichlorosilane 29 by heating with powdered KOH, affords a solid rubbery polysiloxane.
- Ducker, Graham E.,Tipping, Anthony E.
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p. 253 - 262
(2007/10/02)
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- SILAETHENE I. DARSTELLUNG UND CHARAKTERISIERUNG VON MONOSILACYCLOBUTANEN
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Monosilacyclobutanes of the type RR' are prepared by ring closure reactions of 3-halopropylhalosilanes and by substitution of SiCl containing silacyclobutane rings with organometallic reagents (RMgX, LiR, NaCp).Under optimal experimental conditions yields between 50 and 95percent can be obtained by both procedures.Characterization of the compounds is accomplished by analytical (C, H, N) and NMR, IR and mass spectroscopic investigations.
- Auner, N.,Grobe, J.
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