52217-52-4

Basic information

• Product Name: 7-OCTENYLTRICHLOROSILANE
• Synonyms: 7-OCTENYLTRICHLOROSILANE;7-OCT-1-ENYLTRICHLOROSILANE;trichloro-7-octenyl-silan;trichloro-7-octenylsilane;7-OCTENYLTRICHLOROSILANE , CONTAINS 10-30% ISOMERS;7-OCTENYLTRICHLOROSILANE 97%;8-(Trichlorosilyl)-1-octene;7-OCTENYLTRICHLOROSILANE, tech-95
• CAS NO: 52217-52-4
• Molecular Formula: C₈H₁₅Cl₃Si
• Molecular Weight: 245.65
• EINECS: 257-747-2
• Mol File: 52217-52-4.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 223-224 °C(lit.)
• Flash Point: 201 °F
• Appearance: /
• Density: 1.07 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.0689mmHg at 25°C
• Refractive Index: n20/D 1.458(lit.)
• CAS DataBase Reference: 7-OCTENYLTRICHLOROSILANE(CAS DataBase Reference)
• NIST Chemistry Reference: 7-OCTENYLTRICHLOROSILANE(52217-52-4)
• EPA Substance Registry System: 7-OCTENYLTRICHLOROSILANE(52217-52-4)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36/37/39-45-62
• RIDADR: UN 2987 8/PG 2
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 52217-52-4(Hazardous Substances Data)

Usage

General Description

7-OCTENYLTRICHLOROSILANE is a chemical compound with the formula C8H17Cl3Si. It is a clear, colorless liquid that is used in the synthesis of organic compounds and as a reagent in chemical reactions. 7-OCTENYLTRICHLOROSILANE is characterized by its trichlorosilane functional group, which is highly reactive and can undergo a variety of chemical transformations. 7-OCTENYLTRICHLOROSILANE is primarily utilized in the production of silicone polymers and as a coupling agent in the modification of surfaces. It is important to handle this compound with caution, as it is flammable and may be harmful if inhaled or comes into contact with the skin.

InChI:InChI=1/C8H15Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2H,1,3-8H2

Upstream product

• 2695-48-9 8-Bromo-1-octene 
• 4549-32-0 1,8-dibromooctane 

Relevant articles and documents

Alkenylsilane structure effects on mononuclear and binuclear organotitanium-mediated ethylene polymerization: Scope and mechanism of simultaneous polyolefin branch and functional group introduction

Alkenylsilanes of varying chain lengths are investigated as simultaneous chain-transfer agents and comonomers in organotitanium-mediated olefin polymerization processes. Ethylene polymerizations were carried out with activated CGCTiMe2 and EBICGCTi2Me4 (CGC = Me2Si(Me4C5)(NtBu); EBICGC = (μ-CH2CH2-3,3′){(η5-indenyl)[1- Me2Si(tBuN)]}2) precatalysts in the presence of allylsilane, 3-butenylsilane, 5-hexenylsilane, and 7-octenylsilane. In the presence of these alkenylsilanes, high polymerization activities (up to 10 7 g of polymer/(mol of Ti-atm ethylene·h)), narrow product copolymer polydispersities, and substantial amounts of long-chain branching are observed. Regardless of Ti nuclearity, alkenylsilane incorporation levels follow the trend C8H15SiH3 6H 11SiH3 ≈ C4H7SiH3 3H5SiH3. Alkenylsilane comonomer incorporation levels are consistently higher for CGCTiMe2-mediated copolymerizations (up to 54%) in comparison with EBICGCTi2Me 4-mediated copolymerizations (up to 32%). The long-chain branching levels as compared to the total branch content follow the trend C 3H5SiH3 4H7SiH 3 ≈ C6H11SiH3 ≈ C 8H15SiH3, with gel permeation chromatography-multi-angle laser light scattering-derived branching ratios (gM) approaching 1.0 for C8H15SiH3. Time-dependent experiments indicate a linear increase of copolymer Mw with increasing polymerization reaction time. This process for producing long-chain branched polyolefins by coupling of an α-olefin with a chain-transfer agent in one comonomer is unprecedented. Under the conditions investigated, alkenylsilanes ranging from C3 to C8 are all efficient chain-transfer agents. Ti nuclearity significantly influences silanolytic chain-transfer processes, with the binuclear system exhibiting a sublinear relationship between Mn and [alkenylsilane]-1 for allylsilane and 3-butenylsilane, and a superlinear relationship between Mn and [alkenylsilane]-1 for 5-hexenylsilane and 7-octenylsilane. For the mononuclear Ti system, alkenylsilanes up to C 6 exhibit a linear relationship between Mn and [alkenylsilane]-1, consistent with a simple silanolytic chain termination mechanism.