5356-84-3

Basic information

• Product Name: Vinyl tris(trimethylsiloxy)silane
• Synonyms: 1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy)-3-vinyltrisiloxane;3-ethenyl-1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]-trisiloxan;VINYLTRIS(TRIMETHYLSILOXY)SILANE;VINYLTRIS-(TRIMETHYLSILYLOXY)-SILAN;VINYLTRIS(TRIMETHYLSILYLOXY)SILANE;[TRIS-(TRIMETHYLSILYLOXY)-SILYL]-ETHYLEN;[TRIS(TRIMETHYLSILOXY)SILYL]ETHYLENE;TRIS(TRIMETHYLSILOXY)(VINYL)SILANE
• CAS NO: 5356-84-3
• Molecular Formula: C₁₁H₃₀O₃Si₄
• Molecular Weight: 322.7
• EINECS: 226-342-2
• Product Categories: monomer;Acyclic;Alkenes;Building Blocks;Chemical Synthesis;Organic Building Blocks
• Mol File: 5356-84-3.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 86.5-87.5 °C15 mm Hg(lit.)
• Flash Point: 150 °F
• Appearance: Clear colorless liquid
• Density: 0.861 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.0368mmHg at 25°C
• Refractive Index: n20/D 1.395(lit.)
• Storage Temp.: Flammables area
• Water Solubility: insoluble
• BRN: 1795324
• CAS DataBase Reference: Vinyl tris(trimethylsiloxy)silane(CAS DataBase Reference)
• NIST Chemistry Reference: Vinyl tris(trimethylsiloxy)silane(5356-84-3)
• EPA Substance Registry System: Vinyl tris(trimethylsiloxy)silane(5356-84-3)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38-10
• Safety Statements: 26-36-37/39-16
• RIDADR: 1993
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 3.2
• PackingGroup: III
• Hazardous Substances Data: 5356-84-3(Hazardous Substances Data)

Usage

Chemical Properties

Clear colorless liquid

InChI:InChI=1/C11H30O3Si4/c1-11-18(12-15(2,3)4,13-16(5,6)7)14-17(8,9)10/h11H,1H2,2-10H3

Upstream product

• 75-77-4 chloro-trimethyl-silane 
• 75-94-5 trichlorovinylsilane 
• 78-08-0 Triethoxyvinylsilane 
• 2768-02-7 (vinyl)trimethoxylsilane 
• 107-46-0 Hexamethyldisiloxane 
• 1825-62-3 ethyl trimethylsilyl ether 
• 114439-63-3 1,1,1-trimethylvinyldifluorosiloxane 
• 2004-14-0 lithium trimethylsilanolate 

Downstream Products

• 19689-19-1 5-decene 
• 775351-38-7 [Ni(PPh3)2(η-CH2=CHSi(OSiMe3)3)] 
• 18030-66-5 3-ethyl-1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]trisiloxane 
• 1356114-66-3 C₁₇H₄₆O₆Si₅ 

Relevant articles and documents

Preparation method for vinyl tris(trimethylsiloxane)silane

The invention discloses a preparation method for vinyl tris(trimethylsiloxane)silane. The preparation method comprises the following steps: with hydrochloric acid as a catalyst, weighing a certain amount of ethoxytrimethylsilane, slowly dropwise adding the ethoxytrimethylsilane into vinyltriethoxysilane at a certain temperature at the same time, carrying out stirring at a constant temperature, carrying out a reaction so as to obtain a colorless transparent liquid, and carrying out separation and purification so as to obtain the vinyl tris(trimethylsiloxane)silane. The preparation method provided by the invention has simple preparation process, can reach a yield of 76% or more, avoids the use of chlorosilane, and is safe and environmentally-friendly. The vinyl tris(trimethylsiloxane)silaneprepared by using the preparation method provided by the invention can be used as a functional modified silicone oil intermediate or a coupling agent, and can be applied to the fields of coatings, moisture-proofing agents, cables, cosmetics, etc.

METHOD FOR THE PRODUCTION OF POLYMERIZABLE SILICONES

Siloxy-substituted silane-containing polymerizable silicones are prepared in high purity by metering a substituted alkoxysilane into a mixture of disiloxane, acetic acid, and acid catalyst, adding acetyl chloride, separating an acidic phase from a product phase, and adding hexamethyldisilazane to the product phase, which is then distilled.

Silaheterocycles, XXV. - (Me3SiO)2Si=CHCH2tBu: A Siloxy-Functionalized Synthetic Equivalent for Dichloropentylsilene

(Me3SiO)2Si=CHCH2tBu (4) is obtained by the reaction of (Me3SiO)2Si(Cl)CH=CH2 (2) with LitBu.The reaction proceeds via the α-lithiated species 3, which can be intercepted by trimethylsilyl triflate to give 5.Silaethene 4 dimerizes to the E/Z-isomers of disilacyclobutane 7 and adds to Me3SiOMe to give 6.The reactivity of 4 resembles that of Cl2Si=CHCH2tBu (1): A cycloadduct is obtained from the reaction with anthracene, and with 1,3-cyclohexadiene and 1,3-cycloheptadiene mixtures of monosilacyclobutanes (10 and 12) and bicyclic Diels-Alder adducts (9 an 11) are available.Exclusive cycloaddition reactions take place with styrene (formation of 13), 2,3-dimethyl-1,3-butadiene (->19), and 1,3-butadiene (->21).With quadricyclane only the product (14) originating from a cycloaddition is formed, while with 2,5-norbornadiene the and cycloadducts (14 and 15) are formed.In addition the ene products (16, 18, 20, 22) are isolated in some cases from side reactions. - The tendency of 1 and 4 to preferably participate in cycloaddition reactions is ascribed to the polarity of the Si=C bond and the additional influence of the ? donor ligands at silicon.These factors enable a stepwise reaction in which the primary zwitterionic intermediates B are cyclized to yield the SiC fourmembered ring compounds. - Key Words: Silene, neopentyl-/ Me3SiO substituents/ Cycloaddition reactions/ Silaethene derivatives