3069-40-7

Basic information

• Product Name: Trimethoxyoctylsilane
• Synonyms: covasils;Silane, trimethoxyoctyl-;N-OCTYLTRIMETHOXYSILANE;n-Octyltrimethoxysilane(1-Trimethoxysilyl octane);OCTYLTRIMETHOXYSILANE;TRIMETHOXY-OCTYLSILANE;1-TRIMETHOXYSILYL OCTANE;TRIMETHOXYCAPRYLYLSILANE
• CAS NO: 3069-40-7
• Molecular Formula: C₁₁H₂₆O₃Si
• Molecular Weight: 234.41
• EINECS: 221-338-7
• Product Categories: Alkyl;Alkoxy Silanes;Hydrophobing Agents;silane
• Mol File: 3069-40-7.mol
• Article Data: 15

Chemical Properties

• Boiling Point: 75 °C
• Flash Point: 216 °F
• Appearance: Colorless to yellow/Liquid
• Density: 0.907 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.714mmHg at 25°C
• Refractive Index: n20/D 1.416(lit.)
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• Solubility: Soluble in common non-polar organic solvent.
• Water Solubility: 59-1000g/L at 20℃
• Sensitive: Moisture Sensitive
• BRN: 1926957
• CAS DataBase Reference: Trimethoxyoctylsilane(CAS DataBase Reference)
• NIST Chemistry Reference: Trimethoxyoctylsilane(3069-40-7)
• EPA Substance Registry System: Trimethoxyoctylsilane(3069-40-7)

Safety Data

• Statements: 36/38-36/37/38
• Safety Statements: 23-24/25-26/37
• RIDADR: UN2924
• WGK Germany: 1
• F: 21
• TSCA: No
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 3069-40-7(Hazardous Substances Data)

Usage

Chemical Properties

Colorless transparent liquid

Uses

Trimethoxy(octyl)silane is a surface modifier used as additive for polymer encapsulation and for controlled drug delivery.

General Description

Trimethoxy(octyl)silane is an organosilane. The effect of hydrolyzed silane on the penetration of water into a lamellar liquid crystal was studied.

Flammability and Explosibility

Notclassified

InChI:InChI=1/C11H26O3Si/c1-5-6-7-8-9-10-11-15(12-2,13-3)14-4/h5-11H2,1-4H3

Synthetic route

trimethoxysilane (2487-90-3) + trans-2-Octene (13389-42-9) → n-octyltrimethoxysilane (3069-40-7)

Conditions	Yield
With 2C4H9O(1-)*Ni(2+)*(x)KCl In tetrahydrofuran at 20℃; for 4h; Inert atmosphere; Sealed tube;	95%

trimethoxysilane (2487-90-3) + oct-1-ene (111-66-0) → n-octyltrimethoxysilane (3069-40-7)

Conditions	Yield
With 2C4H9O(1-)*Ni(2+)*(x)KCl In tetrahydrofuran at 20℃; for 12h; Glovebox; Inert atmosphere;	89%
Stage #1: oct-1-ene With Wilkinson's catalyst for 0.0833333h; Stage #2: trimethoxysilane at 90℃; for 5h;	75.9%
With cobalt pivalate; [1,3-bis(2,4,6-trimethylphenyl)imidazol]-2-ylidene In neat (no solvent) at 80℃; for 24h; Inert atmosphere;	40%

methanol (67-56-1) + octyltrichlorosilane (5283-66-9) → n-octyltrimethoxysilane (3069-40-7)

Conditions	Yield
With pyridine

methanol (67-56-1) + oct-1-ene (111-66-0) → n-octyltrimethoxysilane (3069-40-7)

Conditions	Yield
Stage #1: oct-1-ene With trichlorosilane; dihydrogen hexachloroplatinate In isopropyl alcohol; toluene at 50℃; Stage #2: methanol With urea In isopropyl alcohol; toluene at 50℃;

4-octene (592-99-4, 7642-15-1, 14850-23-8) → n-octyltrimethoxysilane (3069-40-7)

Conditions	Yield
Multi-step reaction with 2 steps 1: HSiCl3, H2PtCl6*6H2O / benzene; tetrahydrofuran / 110 °C / 73550.8 Torr 2: pyridine View Scheme

trimethoxysilane (2487-90-3) + oct-1-ene (111-66-0) → n-octyltrimethoxysilane (3069-40-7) + C11H26O3Si

Conditions	Yield
With 4'-phenyl-2,2':6',2-terpyridine; cobalt(II) 2-ethylhexanoate at 60℃; for 3h; Sealed tube;

18-crown-6 ether (17455-13-9) + n-octyltrimethoxysilane (3069-40-7) + benzene-1,2-diol (120-80-9) → C12H24KO6(1+)*C20H25O4Si(1-)

Conditions	Yield
With potassium methanolate In methanol at 20℃; for 3h; Schlenk technique; Inert atmosphere;	85%

n-octyltrimethoxysilane (3069-40-7) → C8H17O3Si(3-)*3Na(1+)

Conditions	Yield
With sodium hydroxide In water for 4h; Reflux;

n-octyltrimethoxysilane (3069-40-7) → diisopropyl (1-nonylcyclopropyl)phosphonate

Conditions	Yield
Multi-step reaction with 2 steps 1: potassium methanolate / methanol / 3 h / 20 °C / Schlenk technique; Inert atmosphere 2: [4,4′-bis(1,1-dimethylethyl)-2,2′-bipyridine-N1,N1′]bis{3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-κN]phenyl-κC}iridium(III) hexafluorophosphate / dimethyl sulfoxide / 24 h / 20 °C / Schlenk technique; Inert atmosphere; Irradiation View Scheme

Upstream product

• 592-99-4 4-octene 
• 2487-90-3 trimethoxysilane 
• 111-66-0 oct-1-ene 
• 13389-42-9 trans-2-Octene 
• 67-56-1 methanol 
• 5283-66-9 octyltrichlorosilane 

Relevant articles and documents

THE PROCESS FOR THE PREPARATION AND USE OF HAIR TREATMENT COMPOSITIONS CONTAINING ORGANIC C1-C6 ALKOXY SILANES

The subject of the present application is a method for the preparation and use of an agent for the treatment of keratinous material, in particular human hair, comprising the following steps: (1) Mixing one or more organic C1-C6 alkoxy silanes with water,(2) optionally, partial, or complete removal from the reaction mixture of the C1-C6 alcohols liberated by the reaction in step (1),(3) if necessary, addition of one or more cosmetic ingredients,(4) Filling of the preparation into a packaging unit,(5) Storage of the preparation in the packaging unit for a period of at least about 5 days; and(6) Application of the preparation on the keratinous material.

Cobalt bis(2-ethylhexanoate) and terpyridine derivatives as catalysts for the hydrosilylation of olefins

A simple method for the hydrosilylation of olefins by using air-stable cobalt catalysts is developed. The catalyst system is composed of simple, cheap, and readily available cobalt(II) salts and well-defined terpyridine derivatives as cocatalysts or ligands, and the hydrosilylation processes can be processed smoothly under mild conditions without either Grignard reagents or NaHBEt3 as activator.

Platinum(II) complexes bearing bulky Schiff base ligands anchored onto mesoporous SBA-15 supports as efficient catalysts for hydrosilylation

Reported herein is an easy-to-prepare novel heterogeneous catalyst of platinum complexes bearing binary ligands of bidentate naphthalenolimine and cyclo-1,5-octadiene that are anchored onto mesoporous silica SBA-15. The presence of the binary ligands not only stabilized the platinum, but also enabled the platinum atoms to form nanoclusters with diameters of ca 1?nm, and led to high platinum loading (8.69?wt%). Moreover, the platinum catalyst exhibited high catalytic activity towards hydrosilylation of terminal alkenes and styrene with silanes under mild and solvent-free conditions, with excellent regioselectivity.