1078-97-3

Basic information

• Product Name: 1,4 BIS(DIMETHYLCHLOROSILYL)BENZENE
• Synonyms: 1,4 BIS(DIMETHYLCHLOROSILYL)BENZENE;1,4-BIS(CHLORODIMETHYLSILYL)BENZENE;1,4-PHENYLENEBIS(CHLORODIMETHYLSILANE);Silane, 1,4-phenylenebis[chlorodiMethyl-;chloro-[4-[chloro(dimethyl)silyl]phenyl]-dimethylsilane
• CAS NO: 1078-97-3
• Molecular Formula: C₁₀H₁₆Cl₂Si₂
• Molecular Weight: 263.31
• EINECS: 214-086-4
• Mol File: 1078-97-3.mol
• Article Data: 12

Chemical Properties

• Melting Point: 130-133 °C(lit.)
• Boiling Point: 109-110 °C1 mm Hg(lit.)
• Flash Point: 121 °C
• Appearance: /
• Density: 1.05 g/cm³
• Vapor Pressure: 0.00731mmHg at 25°C
• Refractive Index: 1.491
• CAS DataBase Reference: 1,4 BIS(DIMETHYLCHLOROSILYL)BENZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4 BIS(DIMETHYLCHLOROSILYL)BENZENE(1078-97-3)
• EPA Substance Registry System: 1,4 BIS(DIMETHYLCHLOROSILYL)BENZENE(1078-97-3)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3261 8/PG 2
• WGK Germany: 3
• Hazardous Substances Data: 1078-97-3(Hazardous Substances Data)

Usage

General Description

1,4-Bis(dimethylchlorosilyl)benzene is a chemical compound that belongs to the class of organosilicon compounds. It is commonly used as a cross-linking agent and coupling agent in the manufacturing of silicone polymers and resins. 1,4 BIS(DIMETHYLCHLOROSILYL)BENZENE has two dimethylchlorosilyl groups attached to the benzene ring, which allows it to bond with other silicon-based compounds, enhancing the mechanical and chemical properties of the final material. 1,4-Bis(dimethylchlorosilyl)benzene is also used in the production of coatings, adhesives, sealants, and other products that require high-performance materials with excellent resistance to heat, moisture, and chemicals. Additionally, it is a valuable intermediate in the synthesis of various organosilicon compounds for diverse industrial applications.

InChI:InChI=1/C10H16Cl2Si2/c1-13(2,11)9-5-7-10(8-6-9)14(3,4)12/h5-8H,1-4H3

Upstream product

• 2488-01-9 1,4-bis(dimethylsilyl)benzene 
• 2615-23-8 1,4-bis(ethoxydimethylsilyl)benzene 
• 75-36-5 acetyl chloride 
• 106-46-7 para-dichlorobenzene 
• 75-78-5 dimethylsilicon dichloride 
• 106-37-6 1.4-dibromobenzene 
• 4342-61-4 1,2-dichlorotetramethylsilane 
• 100-20-9 terephthaloyl chloride 

Downstream Products

• 163086-42-8 1,4-Bis-(dimethyl-prop-1-ynyl-silanyl)-benzene 
• 1309596-47-1 1,4-bis(4-cyanophenyldimethylsilyl)benzene 
• 4519-17-9 1,4-bis(dimethyl(vinyl)silyl)benzene 
• 2754-32-7 1,4-bis(hydroxydimethylsilyl)benzene 
• 156578-46-0 1,4-bis<(diethylamino)dimethylsilyl>benzol 
• 109828-61-7 1,1,2,2,9,9,10,10-octamethyl-1,2,9,10-tetrasila<2.2>paracyclophane 

Relevant articles and documents

Siloxane bond formation by heterofunctional condensation of alkoxysilane and halogenosilane. Application to the preparation of copoly(tetramethyl-p-silphenylenesiloxane-dimethylsiloxane)

Siloxane linkages are formed non-hydrolytically by the reaction of dihalogenosilanes with either dibenzylether, or dibenzyloxysilanes and dibenzhydryloxysilanes.The heterocondensation reaction is activated in the presence of NaI (in acetonitrile) or fluoride anions.This offers an alternative copolymerization route to the usual dehydrocondensation of SiOH-terminated species.Thus, the title copolymer was prepared by reaction of equimolar amounts of Me2Si(OCHPh2)2 and 1,4-bis(chlorodimethylsilyl)benzene at 100 deg C.The 29Si NMR spectrum supports a quasi-random sequence in the copolymer.Thermal stability is similar to that reported for an alternating microstructure, as inferred from thermogravimetric analysis. Key words: Siloxane; Polymer

Synthesis of heteroatomic bridged paracyclophanes

Heteroatomic bridged paracyclophanes were obtained by two independent synthetic approaches. The required precursors consist of para R2SiCl (R = Me, iPr) substituted aromatic rings (2 and 4). They were subsequently functionalised by using NH3, [LiPH2(dme)] or LiAl(PH2)4. In the case of the Me-substituted species 2, the reaction with NH3 directly yielded the Si2N bridged paracyclophane 5. The Si2P incorporated derivative 10 was obtained by lithiation of p-C6H4(SiiPr2PH2)2 (9) and subsequent salt metathesis with the chlorosilane 4. The second approach involves the use of GaEt3 in the formation of four membered (GaPn)2 cycles (Pn = N, P). p-[C6H4{SiiPr2N(H)GaEt2}2]2 (11) and p-[C6H4{SiiPr2P(H)GaEt2}2]2 (12) represent the first examples of stable (GaPn)2cis isomers as the trans species did not appear in solution. Although 11 and 12 show a similar coordination pattern, they differ in the orientation of the aromatic systems: in the solid structure, 11 adopts a-for paracyclophanes so far unique-T-shape conformation of the phenyl rings, while 12 shows the predominant coplanar orientation. All cyclophanes were characterized by X-ray diffraction, elemental analysis, NMR and IR spectroscopy.

Silicon phenylene / carbosilane compound and preparation method thereof

The present invention relates to the field of organic silicon, and more particularly relates to a silicon phenylene / carbosilane compound and a preparation method thereof. The invention discloses the silicon phenylene / carbosilane compound with the following molecular structural structure, wherein R1 is independently selected from the group consisting of C1-C5 alkyl, substituted alkyl, aryl and substituted aryl, R2 is independently selected from the group consisting of C1-C5 alkyl or substituted alkyl, aryl and alkenyl containing 1-5 carbon atoms, R3 is independently selected from the group consisting of C1-C12 alkyl or substituted alkyl, aryl and C1-C5 vinyl, and n is an integer from 1 to 50.