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Sigma-Aldrich

Tris(triethylsilyl)silane

Synonym(s):

1,1,1,3,3,3-Hexaethyl-2-(triethylsilyl)trisilane, 3,4,5-Trisilaheptane, 3,3,5,5-tetraethyl-4-(triethylsilyl)

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About This Item

Empirical Formula (Hill Notation):
C18H46Si4
CAS Number:
Molecular Weight:
374.90
MDL number:
UNSPSC Code:
12352001
PubChem Substance ID:
NACRES:
NA.22

form

liquid

Quality Level

reaction suitability

reagent type: reductant

refractive index

n20/D 1.526

density

0.887 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

CC[Si](CC)(CC)[SiH]([Si](CC)(CC)CC)[Si](CC)(CC)CC

InChI

1S/C18H46Si4/c1-10-20(11-2,12-3)19(21(13-4,14-5)15-6)22(16-7,17-8)18-9/h19H,10-18H2,1-9H3

InChI key

WNGZMQFMMHZKBG-UHFFFAOYSA-N

Application

Tris(triethylsilyl)silane can be incorporated as a directing group for various regio- and stereo-selective reactions. Hydrogen abstraction from tris(triethylsilyl)silane yields highly stable silyl radical.
Tris(triethylsilyl)silane can be used as a hydrogen atom donor reagent in chemical synthesis due to its weak Si-H bond. Hydrogen abstraction from tris(triethylsilyl)silane yields a highly stable silyl radical.
It can be used as a reagent:
  • In the radical coupling reaction to generate C-C bonds from alkyl-halogen compounds using iridium and nickel catalysts.
  • To synthesize α-arylated product via cross-electrophile coupling reaction between α-chloro carbonyl and aryl bromide in the presence of nickel and iridium catalysts.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jonathan D Bell et al.
Chemical Society reviews, 50(17), 9540-9685 (2021-07-27)
Photoredox chemistry with organic or transition metal agents has been reviewed in earlier years, but such is the pace of progress that we will overlap very little with earlier comprehensive reviews. This review first presents an overview of the area
Tiffany Q Chen et al.
Angewandte Chemie (International ed. in English), 58(41), 14584-14588 (2019-08-15)
Here, we demonstrate that a metallaphotoredox-catalyzed cross-electrophile coupling mechanism provides a unified method for the α-arylation of diverse activated alkyl chlorides, including α-chloroketones, α-chloroesters, α-chloroamides, α-chlorocarboxylic acids, and benzylic chlorides. This strategy, which is effective for a wide variety of
Highly Stable Silyl Radicals (Et n Me3-n Si) 3Si?(n= 1? 3).
Kyushin S, et al.
Organometallics, 16(25), 5386-5388 (1997)
Generation of Organolithium Compounds bearing Super Silyl Ester and their Application to Matteson Rearrangement.
Oda S and Yamamoto H
Angewandte Chemie (International Edition in English), 125(31), 8323-8326 (2013)
Selective Michael Reaction Controlled by Supersilyl Protecting Group.
Izumiseki A and Yamamoto H
Angewandte Chemie (International Edition in English), 127(30), 8821-8823 (2015)

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