3-[(Dimethylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyltrisiloxane(CAS: 18027-45-7)

3-[(Dimethylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyltrisiloxane is a colorless liquid with a high boiling point and low volatility. Its molecular weight is approximately 396.4 g/mol. It has good solubility in organic solvents but is poorly soluble in water. Chemically, it is relatively stable but can react with strong acids and bases. It is used as a starting material in organosilicon chemistry.

3-[(Dimethylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyltrisiloxane is synthesized through a multi-step process involving silylation reactions. Common methods include using phenylsilane and dimethyl dichlorosilane in the presence of a catalyst such as a Lewis acid. The yield and selectivity of the reaction can be optimized by adjusting the reaction conditions and using appropriate catalysts.

3-[(Dimethylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyltrisiloxane is used in the production of organosilicon compounds and polymers, which are essential in the semiconductor, pharmaceutical, and polymer industries. It is also utilized in the development of sensors and as a reagent in various synthetic reactions.

When handling 3-[(Dimethylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyltrisiloxane, wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Ensure proper ventilation and use of a fume hood. Store it in a cool, dry place away from sources of heat and ignition. In case of a spill, follow the safety data sheet (SDS) guidelines for disposal and clean up. Always consult the SDS for detailed safety information.