3682-26-6

Basic information

• Product Name: 1,3-DIVINYLTETRAETHOXYDISILOXANE
• Synonyms: 1,3-Divinyl-1,1,3,3-tetraethoxypropanedisiloxane;3,3,5,5-Tetraethoxy-3,5-disila-4-oxa-1,6-heptadiene;3,3,5,5-Tetraethoxy-4-oxa-3,5-disila-1,6-heptadiene;Bis(vinyldiethoxysilyl) ether;1,3-Divinyl-1,1,3,3-TetraethoxyDisiloxane;1,3-DIVINYLTETRAETHOXYDISILOXANE;1,3-DIVINYLTETRAETHOXYDISILOXANE 97%;1,1,3,3-Tetraethoxy-1,3-divinylpropanedisiloxane
• CAS NO: 3682-26-6
• Molecular Formula: C₁₂H₂₆O₅Si₂
• Molecular Weight: 306.5
• Mol File: 3682-26-6.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 119 °C
• Flash Point: 43°C
• Appearance: /
• Density: 0.962
• Vapor Pressure: 0.0251mmHg at 25°C
• Refractive Index: 1.4100
• CAS DataBase Reference: 1,3-DIVINYLTETRAETHOXYDISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-DIVINYLTETRAETHOXYDISILOXANE(3682-26-6)
• EPA Substance Registry System: 1,3-DIVINYLTETRAETHOXYDISILOXANE(3682-26-6)

Safety Data

• Statements: 10-36/37/38
• Safety Statements: 16-26-36/37/39
• RIDADR: 1993
• TSCA: No
• Hazardous Substances Data: 3682-26-6(Hazardous Substances Data)

Usage

General Description

1,3-Divinyltetraethoxydisiloxane is a chemical compound with the formula C12H26O4Si2. It is a siloxane derivative with two vinyl groups and four ethoxy groups attached to silicon atoms. This colorless liquid is a silane and used as a monomer for the preparation of various silicon-based polymers and copolymers. It is widely used as a cross-linking agent in the production of silicone rubbers, as well as in the manufacturing of silicone adhesives, sealants, and coatings. Additionally, it has applications in the electronics industry for encapsulation and protection of electronic components and in the production of silicone-based biomedical devices.

InChI:InChI=1/C12H26O5Si2/c1-7-13-18(11-5,14-8-2)17-19(12-6,15-9-3)16-10-4/h11-12H,5-10H2,1-4H3

Upstream product

• 64-17-5 ethanol 
• 75-94-5 trichlorovinylsilane 
• 78-08-0 Triethoxyvinylsilane 
• 124-38-9 carbon dioxide 
• 98-05-5 phenylarsonic acid 

Downstream Products

• 1267749-63-2 C₁₈H₃₄O₅Si₂ 
• 1267749-64-3 C₂₄H₄₂O₅Si₂ 
• 1267749-61-0 C₂₁H₄₂O₆Si₃ 
• 78-08-0 Triethoxyvinylsilane 

Relevant articles and documents

Sustainable Catalytic Synthesis of Diethyl Carbonate

New sustainable approaches should be developed to overcome equilibrium limitation of dialkyl carbonate synthesis from CO2 and alcohols. Using tetraethyl orthosilicate (TEOS) and CO2 with Zr catalysts, we report the first example of sustainable catalytic synthesis of diethyl carbonate (DEC). The disiloxane byproduct can be reverted to TEOS. Under the same conditions, DEC can be synthesized using a wide range of alkoxysilane substrates by investigating the effects of the number of ethoxy substituent in alkoxysilane substrates, alkyl chain, and unsaturated moiety on the fundamental property of this reaction. Mechanistic insights obtained by kinetic studies, labeling experiments, and spectroscopic investigations reveal that DEC is generated via nucleophilic ethoxylation of a CO2-inserted Zr catalyst and catalyst regeneration by TEOS. The unprecedented transformation offers a new approach toward a cleaner route for DEC synthesis using recyclable alkoxysilane.

REACTION OF ARYLARSONIC ACIDS WITH ORGANYLALKOXY- AND ORGANYLACETOXYSILANES

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