14920-92-4

Basic information

• Product Name: 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane
• Synonyms: 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane
• CAS NO: 14920-92-4
• Molecular Formula: C₁₁H₂₀OSi₂
• Molecular Weight: 224.4469
• EINECS: -0
• Mol File: 14920-92-4.mol
• Article Data: 14

Chemical Properties

• Melting Point: <-80 °C
• Boiling Point: 212.5°C at 760 mmHg
• Flash Point: 67.9°C
• Appearance: /
• Density: 0.89g/cm³
• Vapor Pressure: 0.251mmHg at 25°C
• Refractive Index: 1.465
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane(14920-92-4)
• EPA Substance Registry System: 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane(14920-92-4)

Safety Data

• Hazardous Substances Data: 14920-92-4(Hazardous Substances Data)

Usage

General Description

1,1,1,3,3-Pentamethyl-3-phenyldisiloxane is a chemical compound with the molecular formula C16H26OSi2. It is a colorless liquid at room temperature and is commonly used as a building block in the synthesis of silicone polymers. 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane is used in various industrial applications, including as a crosslinking agent for silicone rubbers, in the production of adhesives and sealants, and as a protective coating for electronic components. It is also utilized as a coating additive in the automotive and construction industries. Additionally, 1,1,1,3,3-Pentamethyl-3-phenyldisiloxane may be used as a surface modifier in the production of advanced materials and in the formulation of personal care products. It is important to handle this chemical with caution, as it may cause irritation to the skin, eyes, and respiratory system upon contact or inhalation.

InChI:InChI=1/C11H20OSi2/c1-13(2,3)12-14(4,5)11-9-7-6-8-10-11/h6-10H,1-5H3

Upstream product

• 1825-62-3 ethyl trimethylsilyl ether 
• 1825-58-7 dimethyl(ethoxy)phenylsilane 
• 107-46-0 Hexamethyldisiloxane 
• 56-33-7 1,1,3,3-tetramethyl-1,3-diphenyldisiloxane 
• 75-77-4 chloro-trimethyl-silane 
• 768-33-2 phenyldimethylsilyl chloride 
• 1825-61-2 Trimethylmethoxysilane 
• 5272-18-4 dimethylphenylsilanol 
• 7647-01-0 hydrogenchloride 
• 7664-93-9 sulfuric acid 
• 14642-79-6 benzyloxy-trimethylsilane 
• 1125-26-4 dimethylphenylvinylsilane 
• 754-05-2 ethenyltrimethylsilane 
• 7646-75-5 sodium phenyldimethylsilanolate 

Downstream Products

• 420-56-4 trimethylsilyl fluoride 
• 454-57-9 fluorodimethylphenylsilane 
• 71-43-2 benzene 
• 13247-99-9 bromo-dimethyl-phenyl-silane 

Relevant articles and documents

Novel fluoride ion mediated synthesis of unsymmetrical siloxanes under phase transfer catalysis conditions

Unsymmetrical siloxanes have been prepared from silanols or hydrosilanes using phase transfer catalytic (PTC) systems Me3 SiN3-CsF-18-crown-6-toluene or Me3SiN 3-CsF-18-crown-6-H2O-toluene, correspond

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Preparation method and application of trimethyl silicon alkoxide

The invention discloses a preparation method and an application of trimethyl silicon alkoxide. The preparation method includes the preparation steps: placing hexamethyldisiloxane and potassium hydroxide into a 10L three-mouth flask; adding 10ml of alcohol preparations; performing heating reflux for 48 hours; dividing water by a water knockout trap; cooling, filtering and drying materials to obtain white solid potassium trimethylsilanolate. Inexpensive trimethyl silicon alkoxide (MM) in industrial production serves as a raw material, and the trimethyl silicon alkoxide and the potassium hydroxide are subjected to heating reflux reaction under various catalysts to prepare potassium trimethylsilanolate with high content. All the catalysts are beneficial to dissolution of the potassium hydroxide, and reaction is facilitated.

Pd/C-catalyzed cross-coupling reaction of benzyloxysilanes with halosilanes for selective synthesis of unsymmetrical siloxanes

A new protocol for the nonhydrolytic synthesis of unsymmetrical siloxanes has been developed. The cross-coupling reaction of benzyloxysilanes with halosilanes catalyzed by Pd/C afforded various unsymmetrical siloxanes with co-production of benzyl halides. the Partner Organisations 2014.

Silylation of silanols with vinylsilanes catalyzed by a ruthenium complex

A new ruthenium complex-catalyzed O-silylation of silanols with vinylsilanes leading to siloxane bond formation with the evolution of ethylene is described. A maximum conversion of silanol is reached using an excess of vinylsilane to also yield the product of the homo-coupling of the latter. Under the optimum conditions, when vinylsilane with at least one ethoxy substituent is used, the reaction gives exclusively unsymmetrical siloxanes.