5283-66-9 Usage
Chemical Properties
CLEAR COLOURLESS TO LIGHT YELLOW LIQUID
Uses
OTS functionalized magnesium oxide (MnO2)/aluminium oxide (Al2O3) surface can be used as a catalyst in the decomposition of ozone (O3) and nitrogen dioxide (NO2). OTS can also be used for the surface modification of silicon oxide (SiO2), used in the fabrication of pentacene organic field effect transistors (OFETs). OTS functionalized wafers can be coated on enhanced green fluorescent protein (GFP) and anchor peptides based films to determine the thickness of the films.
General Description
N-OCTYLTRICHLOROSILANE is a colorless liquid with a pungent odor. N-OCTYLTRICHLOROSILANE is decomposed by water to hydrochloric acid with evolution of heat. N-OCTYLTRICHLOROSILANE is corrosive to metals and tissue. N-OCTYLTRICHLOROSILANE is used as an intermediate for silicones.
Reactivity Profile
Chlorosilanes, such as N-OCTYLTRICHLOROSILANE, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases.
Health Hazard
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
Flammability and Explosibility
Notclassified
Safety Profile
A corrosive irritant to
skin, eyes, and mucous membranes. Will
react with water or steam to produce toxic
and corrosive fumes. When heated to
decomposition it emits toxic fumes of Cl-.
See also CHLOROSILANES.
Purification Methods
Purify the silane by repeated fractionation using a 15-20 theoretical plate glass column packed with glass helices. This can be done more efficiently using a spinning band column. The purity can be checked by analysing for Cl (ca 0.5-1g of sample is dissolved in 25mL of MeOH, diluted with H2O and titrated with standard alkali). It is moisture sensitive. [Whitmore J Am Chem Soc 68 475 1946, El-Abbady & Anderson J Am Chem Soc 80 1737 1958, Beilstein 4 III 1907.]
Check Digit Verification of cas no
The CAS Registry Mumber 5283-66-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,8 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 5283-66:
(6*5)+(5*2)+(4*8)+(3*3)+(2*6)+(1*6)=99
99 % 10 = 9
So 5283-66-9 is a valid CAS Registry Number.
InChI:InChI=1/C8H17Cl3Si/c1-2-3-4-5-6-7-8-12(9,10)11/h2-8H2,1H3
5283-66-9Relevant articles and documents
Remarkable activity, selectivity and stability of polymer-supported Pt catalysts in room temperature, solvent-less, alkene hydrosilylations
Drake,Dunn,Sherrington,Thomson
, p. 1931 - 1932 (2000)
A polystyrene-resin supported Pt catalyst displays higher conversion, remarkably improved selectivity and excellent recyclability relative to Speier's catalyst in the room temperature solvent-less hydrosilylation of oct-1-ene using trichlorosilane.
Hara et al.
, p. 247 (1971)
Contra-thermodynamic Olefin Isomerization by Chain-Walking Hydrofunctionalization and Formal Retro-hydrofunctionalization
Hanna, Steven,Butcher, Trevor W.,Hartwig, John F.
supporting information, p. 7129 - 7133 (2019/09/12)
We report a contra-thermodynamic isomerization of internal olefins to terminal olefins driven by redox reactions and formation of Si-F bonds. This process involves chain-walking hydrosilylation of internal olefins and subsequent formal retro-hydrosilylation. The process rests upon the high activities of platinum hydrosilylation catalysts for isomerization of metal alkyl intermediates and a new, metal-free process for the conversion of alkylsilanes to alkenes. By this approach, 1,2-disubstituted and trisubstituted olefins are converted to terminal olefins.
Platinum Catalysis Revisited-Unraveling Principles of Catalytic Olefin Hydrosilylation
Meister, Teresa K.,Riener, Korbinian,Gigler, Peter,Stohrer, Jürgen,Herrmann, Wolfgang A.,Kühn, Fritz E.
, p. 1274 - 1284 (2016/02/18)
Hydrosilylation of C-C multiple bonds is one of the most important applications of homogeneous catalysis in industry. The reaction is characterized by its atom-efficiency, broad substrate scope, and widespread application. To date, industry still relies on highly active platinum-based systems that were developed over half a century ago. Despite the rapid evolution of vast synthetic applications, the development of a fundamental understanding of the catalytic reaction pathway has been difficult and slow, particularly for the industrially highly relevant Karstedt's catalyst. A detailed mechanistic study unraveling several new aspects of platinum-catalyzed hydrosilylation using Karstedt's catalyst as platinum source is presented in this work. A combination of 2H-labeling experiments, 195Pt NMR studies, and an in-depth kinetic study provides the basis for a further development of the well-established Chalk-Harrod mechanism. It is concluded that the coordination strength of the olefin exerts a decisive effect on the kinetics of the reaction. In addition, it is demonstrated how distinct structural features of the active catalyst species can be derived from kinetic data. A primary kinetic isotope effect as well as a characteristic product distribution in deuterium-labeling experiments lead to the conclusion that the rate-limiting step of platinum-catalyzed hydrosilylation is in fact the insertion of the olefin into the Pt-H bond rather than reductive elimination of the product in the olefin/silane combinations studied.
