47956-45-6

Basic information

• Product Name: dimethyloxosilane
• Synonyms: dimethyloxosilane;2-Silapropane-2-one;Einecs 256-344-9
• CAS NO: 47956-45-6
• Molecular Formula: C₂H₆OSi
• Molecular Weight: 74.15394
• EINECS: 256-344-9
• Mol File: 47956-45-6.mol
• Article Data: 14

Chemical Properties

• Appearance: /
• CAS DataBase Reference: dimethyloxosilane(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyloxosilane(47956-45-6)
• EPA Substance Registry System: dimethyloxosilane(47956-45-6)

Safety Data

• Hazardous Substances Data: 47956-45-6(Hazardous Substances Data)

Usage

General Description

Dimethyloxosilane, also known as dimethylsilanediol or DMOS, is a chemical compound with the formula (CH3)2Si(OH)2. It is a colorless, flammable liquid that is highly reactive and is used as a reagent in various organic synthesis processes. Dimethyloxosilane is commonly used as a cross-linking agent in the production of silicones, as well as a silane coupling agent to improve adhesion between organic and inorganic materials. It is also employed in the production of alkoxysilanes, which are used as coupling agents, adhesion promoters, and sealants in various industrial applications. Dimethyloxosilane is considered to be hazardous and should be handled with appropriate safety measures due to its flammability and reactivity.

InChI:InChI=1/C2H6OSi/c1-4(2)3/h1-2H3

Upstream product

• 65181-02-4 3,3-dimethyl-6-oxa-3-silabicyclo<3.1.0>hexane 
• 33459-96-0 3,4-epoxy-1,1,3,4-tetramethyl-silolane 
• 124552-50-7 (3-Chloro-benzyl)-dimethyl-silanol 
• 84521-19-7 3,3-dimethyl-2-oxa-3-sila-bicyclo[2.2.2]oct-7-ene-5exo,6exo-dicarboxylic acid anhydride 
• 23483-20-7 allyloxydimethylsilane 
• 456-48-4 3-Fluorobenzaldehyde 
• 6630-33-7 ortho-bromobenzaldehyde 
• 1122-91-4 4-bromo-benzaldehyde 
• 100-52-7 benzaldehyde 
• 83-38-5 2,6-dichlorobenzaldehyde 
• 89-98-5 2-chloro-benzaldehyde 
• 104-88-1 4-chlorobenzaldehyde 
• 115-10-6 Dimethyl ether 
• 75-78-5 dimethylsilicon dichloride 

Downstream Products

• 541-05-9 Hexamethylcyclotrisiloxane 
• 556-67-2 octamethylcyclotetrasiloxane 
• 22831-39-6 magnesium silicide 

Relevant articles and documents

Synthesis of 1,1-bis(silyl)-1-alkene derivatives bearing Si-H functional groups via Peterson protocol

Various aromatic aldehydes were converted to one-carbon elongate 1,1-bis(silyl)-1-alkene derivatives bearing Si-H functional and reactive groups in a convenient one-pot operation via the Peterson protocol. Then poly(styrene) and poly(α-methylstyrene) (I{cyrillic, ukrainian}&II) random homopolymers were synthesized by solution free radical polymerization at 70(±1) °C using α,α′-azobis(isobutyronitrile) (AIBN) as an initiator. The aldehyde group is introduced by direct electrophilic substitution of polymers I{cyrillic, ukrainian} and II. This formylation reaction was conducted in two different solvents: dichloromethane (CH2Cl2) and nitrobenzene (PhNO2). The results indicate that PhNO2 appeared to be a more suitable solvent for such an aldehyde functionalization of the polymers. The formylated polymers (ICHO, IICHO) were then converted to Si-H functionalized polymers (ISi-H, IISi-H) via reaction with tris(dimethylsilyl)methyllithium, (HMe2Si)3CLi.

Electrochemical generation of diorganylsilanones

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Base Cleavage of the Benzyl-Silicon Bonds in m-ClC6H4CH2SiMe(OH)2 and m-ClC6H4CH2Si(OH)3. Proposed Formation of Metasilicate Intermediates

A kinetic study of the base-catalysed cleavage of the diol RSiMe(OH)2 (R = m-ClC6H4CH2) in Me2SO-H2O or MeOH-H2O has indicated that at high base concentrations the main process is the unimolecular dissociation of the dianion RSiMe(O-)2 into R- and Me(O-)Si=O (an analogue of acetate ion), both of which then react rapidly with the solvent.Likewise for the triol RSi(OH)3 in Me2SO-H2O the main process appears to be the formation of R- and the metasilicate ion HO(O-)Si=O from the dianion R(OH)Si(O-)2.Base cleavage of the silanols RSiMe2OH (R = PhCH2 or m-ClC6H4CH2) in Me2SO-H2O probably involves a contribution from the unimolecular dissociation of the anion RSiMe2O- to give R- and Me2Si=O.