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218170

Ethynyltrimethylsilane

98%

Synonym(s):

Trimethylsilylacetylene

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About This Item

Linear Formula:
(CH3)3SiC≡CH
CAS Number:
1066-54-2
Molecular Weight:
98.22
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24853048
MDL number:
MFCD00008569
Beilstein/REAXYS Number:
906752
Assay:
98%
Form:
liquid
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vapor pressure

4.18 psi ( 20 °C)

Quality Segment

200

assay

98%

form

liquid

refractive index

n20/D 1.388 (lit.)

bp

53 °C (lit.)

density

0.709 g/cm3 (lit.)

storage temp.

2-8°C

SMILES string

C[Si](C)(C)C#C

InChI

1S/C5H10Si/c1-5-6(2,3)4/h1H,2-4H3

InChI key

CWMFRHBXRUITQE-UHFFFAOYSA-N

General description

Laser-induced polymerization of gaseous ethynyltrimethylsilane was used for efficient chemical vapour deposition of polycarbosilane films. Ethynyltrimethylsilane acts as substrate for nickel-catalyzed cross-coupling with benzonitriles.

Application

Ethynyltrimethylsilane was used in:
  • microwave-assisted, one-pot, three-step Sonogashira cross-coupling-desilylation-cycloaddition reaction for the preparation of 1,4-disubstituted 1,2,3-triazoles
  • synthesis of poly(ethynyltrimethylsilane) containing Pd (II) coordination sites
  • pyrazole synthesis via 1,3-dipolar cycloaddition of diazo compounds to acetylenes

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

-29.2 °F

flash_point_c

-34 °C

ppe

Faceshields, Gloves, Goggles

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