Allyl(chloro)dimethylsilane
Allyl(chloro)dimethylsilane (CAS: 4028-23-3) is an organosilicon compound with the linear formula H₂C=CHCH₂Si(CH₃)₂Cl and a molecular weight of 134.68 g/mol. This versatile chemical building block serves as a key intermediate in various synthetic pathways, particularly in organosilicon chemistry. It is frequently employed in the silylation of various substrates and in the preparation of complex organosilicon polymers and structures.
- IUPAC
- ADMCS,Allyldimethylchlorosilane
- Synonyms
- AllyldimethylchlorosilaneChlorodimethylallylsilaneDimethyl(allyl)chlorosilane
Synthesis of Bis(disiloxanediyl)dibenzene
Allyl(chloro)dimethylsilane is utilized in the synthesis of specialised cyclised compounds, such as cyclo-1,1′,4,4′-bis(1,1,3,3-tetramethyl-1,3-disiloxanediyl)dibenzene. This application highlights its role in constructing complex siloxane ring systems.
Silylation of Silicic Acid
The compound acts as a silylating agent for silicic acid. This process is important for modifying the properties of silica-based materials and in the preparation of organosilicon derivatives.
Preparation of Organosilicon Polymers
Allyl(chloro)dimethylsilane is used in the preparation of phenylenebis(silanediyl triflates). These intermediates are valuable synthons for creating novel organosilicon polymers with tailored properties.
O-Silylation Reactions
It participates in the O-silylation of phenyl sulfones, a reaction that can be crucial for protecting hydroxyl groups or activating substrates in multi-step organic syntheses.
| Molecular weight | 134.68 |
|---|---|
| Linear formula | H2C=CHCH2Si(CH3)2Cl |
| Assay | 97% |
| Boiling point | 111-113 °C(lit.) |
| Density | 0.891 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.427(lit.) |
| Application | Allyl(chloro)dimethylsilane has been used in:• the synthesis of cyclo-1,1′,4,4′-bis(1,1,3,3-tetramethyl-1,3-disiloxanediyl)dibenzene1• silylation of silicic acid2• the preparation of phenylenebis(silanediyl triflates), useful synthons for organosilicon polymers3• O-silylation of phenyl sulfones4 |
Hazard statements
- H225Highly flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 2985 8(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-34 |
| Safety statements (S) | 16-26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Allyl(chloro)dimethylsilane used for?
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Allyl(chloro)dimethylsilane is used in organic synthesis, particularly for the silylation of silicic acid, the preparation of organosilicon polymers, and in the synthesis of complex siloxane structures.
What is the CAS number and formula for Allyl(chloro)dimethylsilane?
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The CAS number is 4028-23-3 and the linear formula is H₂C=CHCH₂Si(CH₃)₂Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Allyl(chloro)dimethylsilane with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the safety considerations when handling Allyl(chloro)dimethylsilane?
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Allyl(chloro)dimethylsilane is a flammable liquid and causes severe skin burns and eye damage. Handle with appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, in a well-ventilated area. Keep away from heat and open flames.
How is Allyl(chloro)dimethylsilane packed and shipped?
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This product is classified under UN 2985, Hazard Class 8 (Corrosive) with subsidiary risk 3 (Flammable Liquid), Packing Group II. It is exported globally by Tech Serve Solutions following all relevant transport regulations.
How can I request a quote or sample for Allyl(chloro)dimethylsilane?
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To request a quote or sample, please contact our sales department through the website or by phone, providing your specific requirements and shipping details.
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