2401-73-2

Basic information

• Product Name: 1,3-DICHLOROTETRAMETHYLDISILOXANE
• Synonyms: 1,3-DICHLOROTETRAMETHYLDISILOXANE 96%;1,3-Dichloro-1,1,3,3-tetramethylpropanedisiloxane;Oxybis(chlorodimethylsilane);Oxybis(dimethylchlorosilane);1,3-Dichloro-1,1,3,3-tetramethyldisiloxane,96%;Bis(chlorodimethylsilyl) oxide;Tetramethyl-1,3-dichlorodisiloxane;chloro-[chloro(dimethyl)silyl]oxy-dimethylsilane
• CAS NO: 2401-73-2
• Molecular Formula: C₄H₁₂Cl₂OSi₂
• Molecular Weight: 203.21
• EINECS: 219-278-1
• Product Categories: Monochlorosilanes;Protection & Derivatization Reagents (for Synthesis);Si (Classes of Silicon Compounds);Si-Cl Compounds;Siloxanes;Si-O Compounds;Synthetic Organic Chemistry;Protecting and Derivatizing Reagents;Protection and Derivatization;Silicon-Based
• Mol File: 2401-73-2.mol
• Article Data: 15

Chemical Properties

• Melting Point: -37 °C
• Boiling Point: 138 °C(lit.)
• Flash Point: 15 °C
• Appearance: /liquid
• Density: 1.039 g/mL at 25 °C(lit.)
• Vapor Pressure: 8.53mmHg at 25°C
• Refractive Index: n20/D 1.407(lit.)
• Storage Temp.: Flammables area
• Water Solubility: Reacts with water.
• Sensitive: Moisture Sensitive
• BRN: 1741218
• CAS DataBase Reference: 1,3-DICHLOROTETRAMETHYLDISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-DICHLOROTETRAMETHYLDISILOXANE(2401-73-2)
• EPA Substance Registry System: 1,3-DICHLOROTETRAMETHYLDISILOXANE(2401-73-2)

Safety Data

• Hazard Codes: F,C
• Statements: 11-34
• Safety Statements: 16-26-27-36/37/39-45
• RIDADR: UN 2985 3/PG 2
• WGK Germany: 3
• F: 10-21
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 2401-73-2(Hazardous Substances Data)

Usage

Chemical Properties

clear colorless liquid

Uses

1,3-Dichlorotetramethyldisiloxane is used to produce 1,1,3,3-tetramethyl-disiloxane-1,3-diol. It is also used as Chemical Additives. Pharmaceutical intermediates.

InChI:InChI=1/C4H12Cl2OSi2/c1-8(2,5)7-9(3,4)6/h1-4H3

Upstream product

• 75-78-5 dimethylsilicon dichloride 
• 3277-26-7 1,1,3,3-Tetramethyldisiloxane 
• 107-05-1 3-chloroprop-1-ene 
• 536-74-3 phenylacetylene 
• 67-68-5 dimethyl sulfoxide 
• 556-67-2 octamethylcyclotetrasiloxane 
• 1825-69-0 dimethyl chloro ethoxy silane 
• 4342-61-4 1,2-dichlorotetramethylsilane 
• 93-59-4 Perbenzoic acid 
• 107-46-0 Hexamethyldisiloxane 
• 115-10-6 Dimethyl ether 
• 1066-35-9 dimethylmonochlorosilane 
• 60-29-7 diethyl ether 
• 122571-17-9 1,3-bis(4′-methoxyphenyl)-1,1,3,3-tetramethyldisiloxane 

Downstream Products

• 112926-00-8 silica gel 
• 18187-24-1 sym-tetramethyldimethoxydisiloxane 
• 3294-30-2 2,2,5,5-tetramethyl-3-phenyl-1,2,5-oxadisilolane 
• 35331-58-9 Hexamethyl(silacyclohexyl)cyclotetrasiloxan 
• 5314-58-9 tetramethyldisiloxane-1,3-diyl diacetate 
• 18402-76-1 1,1,3,3-tetramethyl-1,3-dicyclopentadienyldisiloxane 
• 75-77-4 chloro-trimethyl-silane 
• 62613-99-4 1,1,3,3-tetramethyl-1,3-bis(trimethylsilylamino)disiloxane 
• 172228-59-0 1,1,3,3-tetramethyl-1,3-bis-phenylethynyl-disiloxane 
• 74-87-3 methylene chloride 

Relevant articles and documents

METHOD FOR PRODUCING ORGANOSILICON COMPOUND USING HALOSILANE AS RAW MATERIAL

PROBLEM TO BE SOLVED: To provide a novel method for producing an organosilicon compound. SOLUTION: The method for producing an organosilicon compound includes a reaction step (I) of reacting a halosilane represented by formula (a) with a compound containing a hydrocarbon group represented by formula (b) in the presence of an organic base to generate an organosilicon compound represented by formula (c). (In the formula (I), n is an integer of 0-3; each R1 independently represents a hydrogen atom or a C1-20 hydrocarbon group which may contain a heteroatom; X represents a bromo group (-Br) or a chloro group (-Cl); and R2 represents a compound containing a hydrocarbon group.) SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2020,JPOandINPIT

B(C6F5)3-Catalyzed Selective Chlorination of Hydrosilanes

The chlorination of Si?H bonds often requires stoichiometric amounts of metal salts in conjunction with hazardous reagents, such as tin chlorides, Cl2, and CCl4. The catalytic chlorination of silanes often involves the use of expensive transition-metal catalysts. By a new simple, selective, and highly efficient catalytic metal-free method for the chlorination of Si?H bonds, mono-, di-, and trihydrosilanes were selectively chlorinated in the presence of a catalytic amount of B(C6F5)3 or Et2O?B(C6F5)3 and HCl with the release of H2 as a by-product. The hydrides in di- and trihydrosilanes could be selectively chlorinated by HCl in a stepwise manner when Et2O?B(C6F5)3 was used as the catalyst. A mechanism is proposed for these catalytic chlorination reactions on the basis of competition experiments and density functional theory (DFT) calculations.

Si-permethylcyclo(1-methoxyphosphoryloxy)siloxanes: New synthons in the processes of low-temperature production of dimethylsilanone

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