546-44-1

Usage

Uses

Used in Cosmetic and Personal Care Industry:
3-Phenylheptamethyltrisiloxane is used as a silicone base in cosmetic and personal care products for its ability to provide a smooth and silky texture, enhancing the feel and appearance of the skin and hair.
Used as a Conditioner:
In hair care formulations, 3-Phenylheptamethyltrisiloxane is used as a conditioner to improve the manageability and overall health of the hair, making it softer and more manageable.
Used as a Spreading Agent:
In topical skincare products, 3-Phenylheptamethyltrisiloxane is used as a spreading agent to facilitate the even distribution of the product on the skin, ensuring better absorption and effectiveness.
Used as a Protective Coating:
In hair care products, 3-Phenylheptamethyltrisiloxane is used as a protective coating to shield the hair from environmental damage and provide a barrier against moisture loss, maintaining the hair's natural moisture balance.
Overall, 3-Phenylheptamethyltrisiloxane is a versatile ingredient in the cosmetic and personal care industry, offering a range of benefits that contribute to the performance and quality of various products. Its unique properties make it a popular choice for formulators looking to create high-quality 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

• 1066-40-6 Trimethylsilanol 
• 780-55-2 2-phenylheptamethyltrisilane 
• 36046-65-8 1-phenyl-1-chlorotetramethyldisiloxane 
• 2004-14-0 lithium trimethylsilanolate 
• 75-77-4 chloro-trimethyl-silane 
• 149-74-6 dichloromethylphenylsilane 
• 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 
• 107-46-0 Hexamethyldisiloxane 
• 13688-55-6 trimethylsilyl acrylate 
• 18052-93-2 methylphenyldiallyloxysilane 

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 academic research and scientific papers

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

Iridium-Catalyzed Silylation of C-H Bonds in Unactivated Arenes: A Sterically Encumbered Phenanthroline Ligand Accelerates Catalysis

We report a new system for the silylation of aryl C-H bonds. The combination of [Ir(cod)(OMe)]2 and 2,9-Me2-phenanthroline (2,9-Me2-phen) catalyzes the silylation of arenes at lower temperatures and with faster rates than

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.

INTERMOLECULAR C-H SILYLATION OF UNACTIVATED ARENES

Reaction mixtures for silvlating arene substrates and methods of using such reaction mixtures to silyiate the arene substrates are provided. Exemplary reaction mixtures include the arene substrate, a liganded metal catalyst, a hydrogen acceptor and an organic solvent. The reaction conditions allow for diverse substituents on the arene substrate.

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.

Platinum-catalyzed aromatic C-H silylation of arenes with 1,1,1,3,5,5,5-heptamethyltrisiloxane

The intermolecular dehydrogenative coupling of 1,1,1,3, 5,5,5-heptamethyltrisiloxane with arenes proceeded in the presence of a catalytic amount of platinum complexes prepared in situ from PtCl2 and hydrotris(pyrazolyl)borate derivatives. Copyr

Silylation of aryl iodides with 1,1,1,3,5,5,5-heptamethyltrisiloxane catalyzed by transition-metal complexes

The silylation of various kinds of aryl iodides with 1,1,1,3,5,5,5- heptamethyltrisiloxane was achieved by a suitable transition-metal catalyst, such as Pd(0), Pt(0), and Rh(I). These catalytic systems showed dramatically different substrate scope. Georg Thieme Verlag Stuttgart.

Reaktionen von Trimethylsiloxychlorsilanen (Me3SiO)Me2-nPhnSiCl (n = 0, 1, 2) mit Lithium - Bildung von Trimethylsiloxy-substituierten Silyl- und Disilanyllithiumverbindungen sowie Di- und Trisilanen

The trimethylsiloxychlorosilanes (Me3SiO)Me2-nPhnSiCl (1: n=0; 2: n=1; 3: n=2) were allowed to react with lithium metal in tetrahydrofuran (THF) and in a mixture of THF-diethylether-n-pentane in volume ratio 4:1:1 (Trapp mixture). The reaction of 1 with lithium metal in THF under refluxing leads to the homo-coupling product [(Me3SiO)Me2Si]2 (4). A mixture of 1 and Me3SiCl in molar ratio 1:2 reacts with lithium metal in THF to give 4 and the cross-coupling product (Me3SiO)Me2SiSiMe3 (7). The silyllithium derivatives Me3SiO(SiMePh)nLi (8: n = 1; 9: n = 2; 10: n = 3) and Me3SiSiMePhLi (11) are formed in the reaction of 2 with lithium metal in THF at -78°C and in the Trapp mixture at -110°C. Main product in both cases is 9. 8-11 are trapped by Me3SiCl and HMe2SiCl. The trapping products (Me3SiO)SiMePhSiMe3 (13a), Me3SiO(SiMePh)2SiMe2R (14a, 14b; a: R = Me, b: R = H), Me3SiO(SiMePh)3SiMe2R (15a, 15b) and Me3SiSiMePhSiMe2R (16a, 16b) are obtained. The reaction of 3 with lithium metal like 2 produces the silyllithium derivatives Me3SiO(SiPh2)nLi (18: n = 1, 19: n = 2) and Me3SiSiPh2Li (20), wich are trapped by Me3SiCl and HMe2SiCl to give the corresponding disilanes (Me3SiO)SiPh2SiMe2R (23a, 23b) and trisilanes Me3SiO(SiPh2)2SiMe2R (24a, 24b) as well as Me3SiSiPh2SiMe2R (25a, 25b). In addition to 18, 19 and 20 LiSiPh2SiPh2Li (21) is formed in a small amount in the reaction of 3 with lithium metal at -78°C to afford tetrasilanes [RMe2SiPh2Si]2 (26a, 26b) after trapping by Me3SiCl and HMe2SiCl. The disilane (Me3SiO)SiMeR′SiMe3 (17) (R′ = 3,4,5,6-tetrakis(trimethylsilyl)cyclohex-1-enyl) is produced by reaction of a mixture of 2 and Me3SiCl in molar ratio 1:6 with 6 equivalents of lithium at -78°C in THF. The reaction of a mixture of 3 and Me3SiCl in the molar ratio 1:10 with 11 equivalents of lithium under the same conditions gives (Me3SiO)SiR′2SiMe3 (27).

FEATURES OF INFLUENCE OF HCl ON HYDROLYTIC COPOLYCONDENSATION OF BIFUNCTIONAL ORGANOCHLOROSILANES WITH TRIMETHYLCHLOROSILANE

The hydrogen chloride that is formed in the hydrolytic copolycondensation of R'RSiCl2 with Me3SiCl affects the composition of the reaction products only at cocentrations above 30-35percent, where it is responsible for splitting out the terminal trimethylsiloxy group.The stability of the terminal groups increases with increasing size of the substituents on the silicon atom in the R'RSiCl2.The total yield of Me3SiO(R'RSiO)mSiMe3 with m = 1-4 also increases with increasing size of the substituents on the silicon atom in the R'RSiCl2.The total yield of p with p = 3-5 increases with decreasing tendency of the R'RSiCl2 to form rings by hydrolytic polycondensation, and with increasing sensitivity of the terminal trimethylsiloxy group in the cocondensation products to the action of HCl and its activity with respect to the siloxane bond.