124-70-9

Basic information

• Product Name: Dichloromethylvinylsilane
• Synonyms: METHYLVINYLCHLOROSILANE;METHYLVINYLDICHLOROSILANE;DICHLOROMETHYLVINYLSILANE;VINYLMETHYLDICHLOROSILANE;CV-4772;dichloroethenylmethyl-silan;dichloroethenylmethyl-Silane;dichloromethylvinyl-silan
• CAS NO: 124-70-9
• Molecular Formula: C₃H₆Cl₂Si
• Molecular Weight: 141.07
• EINECS: 204-710-3
• Product Categories: Vinyl;Dichlorosilanes;Si (Classes of Silicon Compounds);Si-Cl Compounds;Vinylsilanes, Allylsilanes
• Mol File: 124-70-9.mol
• Article Data: 16

Chemical Properties

• Melting Point: -78°C
• Boiling Point: 92 °C(lit.)
• Flash Point: 40 °F
• Appearance: /liquid
• Density: 1.08 g/mL at 25 °C(lit.)
• Vapor Density: >1 (vs air)
• Vapor Pressure: 16.308mmHg at 25°C
• Refractive Index: n20/D 1.430(lit.)
• Storage Temp.: 0-6°C
• Explosive Limit: 1.5-42.0%(V)
• Sensitive: Moisture Sensitive
• BRN: 1740822
• CAS DataBase Reference: Dichloromethylvinylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: Dichloromethylvinylsilane(124-70-9)
• EPA Substance Registry System: Dichloromethylvinylsilane(124-70-9)

Safety Data

• Hazard Codes: F,C
• Statements: 11-14-34-37-35-20/22
• Safety Statements: 16-26-36/37/39-45
• RIDADR: UN 2985 3/PG 2
• WGK Germany: 1
• RTECS: VV3533000
• F: 10-21
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 124-70-9(Hazardous Substances Data)

Usage

Chemical Properties

clear colorless to light brown liquid

Uses

Different sources of media describe the Uses of 124-70-9 differently. You can refer to the following data:
1. Manufacture of silicones.
2. Dichloromethylvinylsilane was used as single molecular precursor for the deposition of β-SiC thin films and β -SiC nanowires by metalorganic chemical vapor deposition on bare Si 100 and Ni-coated Si 100 substrates. Dichloromethylvinylsilane was used in the synthesis and characterization of Tris(1-(dichloro(methyl)silyl)ethyl)borane,monomer.

General Description

Dichloromethylvinylsilane reacts with dimethylsulphide borane to form organosilylborane, which further gets ammonolysized to form the polymer of the SiBCN.

Hazard

Flammable, dangerous fire risk. Irritant.

Flammability and Explosibility

Highlyflammable

InChI:InChI=1/C3H6Cl2Si/c1-2-6-3(4)5/h2-3H,1,6H2

Upstream product

• 75-54-7 Dichloromethylsilane 
• 74-85-1 ethene 
• 75-01-4 chloroethylene 
• 75-79-6 Methyltrichlorosilane 
• 3536-96-7 vinylmagnesium chloride 
• 74-86-2 acetylene 
• 25202-02-2 (chloromethyl)(methyl)divinylsilane 
• 1873-92-3 allyldichloromethylsilane 
• 14799-94-1 n-hexylmethyldichlorosilane 
• 75-94-5 trichlorovinylsilane 
• 754-05-2 ethenyltrimethylsilane 
• 766-77-8 Dimethylphenylsilane 
• 18244-95-6 methyltrivinylsilane 
• 75-16-1 methylmagnesium bromide 

Downstream Products

• 2944-70-9 vinyl methyl diacetoxysilane 
• 3439-25-6 (2-Methyldichlorsilyl-ethyl)-pentamethyldisiloxan 
• 1093-26-1 Methyl-vinyl-bis-<4-cyan-phenoxy>-silan 
• 1047-83-2 Methyl-vinyl-bis-<2,4,5-trichlor-phenoxy>-silan 
• 3353-69-3 1,2-bis(methyldichlorosilyl)ethane 
• 17902-47-5 trans-1-phenyl-2-(dichloromethylsilyl)ethene 
• 6231-76-1 1,2-bis(trimethylsilyl)ethane 
• 18140-32-4 1-(trimethylsilyl)-2-(methyldichlorosilyl)ethane 
• 82364-03-2 Chlormethyl(2-phenylethyl)vinylsilan 
• 82364-04-3 Methylbis(2-phenylethyl)vinylsilan 
• 86071-66-1 chloro(4-fluorophenyl)(methyl)(vinyl)silane 
• 4145-76-0 [2-(Dichloro-methyl-silanyl)-ethyl]-diphenyl-phosphane 
• 772-65-6 (2-phenylethyl)methyldichlorosilane 
• 17209-94-8 Bis-<2,4,6-tribrom-phenoxy>-methyl-vinyl-silan 

Relevant articles and documents

Reaction of bis(trifluoromethyl)amino-oxyl with alkylchlorosilanes and allyldichloro(methyl)silane and of perfluoro-2,5-diazahexane 2,5-dioxyl with vinylsilanes and hydrolysis of the products

Treatment of the silanes MeSiHCl2, Me2SiHCl and EtSiMeCl2 with the oxyl (CF3)2NO(.) (1) gives the substitution products (CF3)2NOSiMeCl2 (4) and (CF3)2NOSiMe2Cl (5), and a mixture of (CF3)2NOCHMeSiMeCl2 (8) and (CF3)2NOCH2CH2SiMeCl2 (9) (ratio 20:37), respectively, while the silane EtSiMe2Cl affords mainly the ester (CF3)2NO2CMe (7).Attack of oxyl 1 on the silane CH2=CHCH2SiMeCl2 results in both allylic substitution and addition to give the compounds CH2=CHCH(SiMeCl2)ON(CF3)2 (14) and (CF3)2NOCH2CH(CH2SiMeCl2)ON(CF3)2 (15) (ratio 56:40).Reaction of the dioxyl (.)ON(CF3)CF2CF2N(CF3)O(.) (2) with the vinylsilanes CH2=CHSiX3 (X3 = Me3, Cl3, MeCl2) gives mainly 1:1 copolymers n (17), although the cyclic 1:1 adduct (18) is also formed in low yield.Hydrolysis of the silanes 15, (CF3)2NOCH2CH(SiMeCl2)ON(CF3)2 (19a) and (CF3)2NOCH2CH(SiCl3)ON(CF3)2 (19b) affords the corresponding polysiloxanes 24 and 25, and the polysilsesquioxane 26, respectively; the polymers 25 and 26 undergo rearrangement of the type -CH(Si)ON(CF3)2 --> -CH(OSi)N(CF3)2 on storage.The 1:1 copolymers 17b (X3 = MeCl2) and 17c (X3 = Cl3) are also hydrolysed to the corresponding siloxane and silsesquioxane polymers.In contrast, hydrolysis of the compounds 4,5 and (CF3)2NOCH2CH(OSiX3)N(CF3)2 (20a; X3 = MeCl2) and (20b; X3 = Cl3) results in Si-O bond cleavage.

SELECTIVE PREPARATION OF VINYL- AND ETHYL-FUNCTIONALIZED CHLOROSILANES

A method of preparing an organosilicon compound via selective silylation of ethylene is disclosed. The method comprises reacting via silylation (A) a hydridochlorosilane compound and (B) ethylene in the presence of (C) a catalyst, thereby preparing the organosilicon compound. The silylation may be selectively conducted as a dehydrogenative coupling to prepare the organosilicon compound as a vinylchlorosilane compound, or as a hydrosilylation to prepare the organosilicon compound as an ethylchlorosilane compound. The catalyst (C) comprises a Ru(0) complex, and may be recycled for use in subsequent silylation reactions without purification. The organosilicon compound prepared according to the method is also disclosed.

Hydrosilylation process for gaseous unsaturated hydrocarbons

Organosilicon compounds are prepared by the addition reaction of a gaseous unsaturated hydrocarbon with a silane or siloxane containing at least one silicon-bonded hydrogen atom in the presence of a hydrosilylation catalyst in a liquid reaction medium. In this process the unsaturated hydrocarbon and optionally the silane or siloxane is dispersed into the liquid reaction medium by a jet eductor (also known as a venturi pump) device and the resultant gas-in-liquid dispersion is introduced into a bubble reactor.