546-44-1

Basic information

• Product Name: 3-PHENYLHEPTAMETHYLTRISILOXANE
• Synonyms: trisiloxane,1,1,1,3,5,5,5-heptamethyl-3-phenyl-;3-PHENYLHEPTAMETHYLTRISILOXANE;3-PhenylheptamethylSIV9099.0;Phenylheptamethyltrisiloxane;3-Heptamethylphenyltrisiloxane;3-PHENYLHEPTAMETHYLTRISILOXANE 95%;1,1,1,3,5,5,5-heptamethyl-3-phenyl-Trisiloxane
• CAS NO: 546-44-1
• Molecular Formula: C₁₃H₂₆O₂Si₃
• Molecular Weight: 298.6
• Mol File: 546-44-1.mol
• Article Data: 14

Chemical Properties

• Melting Point: -56 °C
• Boiling Point: 95 °C
• Flash Point: 64°C
• Appearance: /
• Density: 0.908
• Vapor Pressure: 0.0112mmHg at 25°C
• Refractive Index: 1.4468
• CAS DataBase Reference: 3-PHENYLHEPTAMETHYLTRISILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: 3-PHENYLHEPTAMETHYLTRISILOXANE(546-44-1)
• EPA Substance Registry System: 3-PHENYLHEPTAMETHYLTRISILOXANE(546-44-1)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• TSCA: No
• Hazardous Substances Data: 546-44-1(Hazardous Substances Data)

Usage

General Description

3-Phenylheptamethyltrisiloxane is a type of silicone oil that is used in the production of various cosmetic and personal care products. It acts as a silicone base, providing a smooth and silky texture while also serving as a conditioner to improve the feel and appearance of skin and hair. Additionally, it is often used as a spreading agent in topical skincare products and as a protective coating in hair care formulations. Its chemical structure allows it to efficiently and effectively provide emollient and conditioning properties, making it a common ingredient in a wide range of beauty and personal care products.

InChI:InChI=1/C13H26O2Si3/c1-16(2,3)14-18(7,15-17(4,5)6)13-11-9-8-10-12-13/h8-12H,1-7H3

Upstream product

• 107-46-0 Hexamethyldisiloxane 
• 149-74-6 dichloromethylphenylsilane 
• 780-55-2 2-phenylheptamethyltrisilane 
• 1066-40-6 Trimethylsilanol 
• 36046-65-8 1-phenyl-1-chlorotetramethyldisiloxane 
• 2004-14-0 lithium trimethylsilanolate 
• 114439-65-5 1-Fluoro-1,3,3,3-tetramethyl-1-phenyl-disiloxane 
• 75-77-4 chloro-trimethyl-silane 
• 1066-35-9 dimethylmonochlorosilane 
• 1873-88-7 1,1,1,3,5,5,5-heptamethyltrisiloxan 
• 71-43-2 benzene 
• 108-90-7 chlorobenzene 
• 591-50-4 iodobenzene 
• 110-83-8 cyclohexene 

Downstream Products

• 16537-10-3 tert-butyl 3-phenylpropanoate 
• 1583286-99-0 4,4,5,5-tetramethyl-2-[p-(1,1,1,3,5,5,5-heptamethyltrisiloxane-3-yl)phenyl]-1,3-dioxaborolane 
• 1583286-94-5 C₁₉H₃₇BO₄Si₃ 
• 1583286-95-6 C₂₅H₄₈B₂O₆Si₃ 
• 1583286-08-1 C₂₀H₄₆O₄Si₆ 
• 98-08-8 α,α,α-trifluorotoluene 
• 4641-57-0 1-phenylpyrrolidin-2-one 

Relevant articles and documents

Kinetic analysis and sequencing of Si-H and C-H bond activation reactions: Direct silylation of arenes catalyzed by an iridium-polyhydride

The saturated trihydride IrH3{κ3-P,O,P-[xant(PiPr2)2]} (1; xant(PiPr2)2 = 9,9-dimethyl-4,5-bis(diisopropylphosphino)xanthene) coordinates the Si-H bond of triethylsilane, 1,1,1,3,5,5,5-heptamethyltrisiloxane, and triphenylsilane to give the σ-complexes Ir

Synthetic method of allyl acrylate

The invention discloses a new synthetic method of allyl acrylate. According to the method, an organic silicon monomer with functional groups is used, and the allyl acrylate is prepared under the soft reaction condition. The synthetic method of the allyl acrylate includes three steps that (1) acryloxytrimethylsilane is synthesized; (2) allyloxy silane is synthesized; and (3) the acryloxytrimethylsilane and the allyloxy silane are mixed. According to the raw materials used in a reaction, chlorine elements are fully converted into inorganic salt, low-boiling-point chloride like phosphorus trichloride is not used, and it is guaranteed that the chlorine elements are not contained in a prepared product; reaction conditions are soft, and the requirement for the equipment is not high; purification is easy, boiling points of all components are large in difference, and reduced pressure distillation separation is easy; water washing is not needed, and amplification is easy; and trifluoromethanesulfonic acid serves as a catalyst, the high acidity is achieved, and double bonds cannot be damaged.

Rhodium-catalyzed intermolecular C-H silylation of arenes with high steric regiocontrol

Regioselective C-H functionalization of arenes has widespread applications in synthetic chemistry. The regioselectivity of these reactions is often controlled by directing groups or steric hindrance ortho to a potential reaction site. Here, we report a catalytic intermolecular C-H silylation of unactivated arenes that manifests very high regioselectivity through steric effects of substituents meta to a potential site of reactivity. The silyl moiety can be further functionalized under mild conditions but is also inert toward many common organic transformations, rendering the silylarene products useful building blocks. The remote steric effect that we observe results from the steric properties of both the rhodium catalyst and the silane.