218170
Ethynyltrimethylsilane
98%
Synonym(s):
Trimethylsilylacetylene
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About This Item
Linear Formula:
(CH3)3SiC≡CH
CAS Number:
Molecular Weight:
98.22
Beilstein:
906752
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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vapor pressure
4.18 psi ( 20 °C)
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
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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
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
-29.2 °F
Flash Point(C)
-34 °C
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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A microwave-assisted, one-pot, three-step Sonogashira cross-coupling-desilylation-cycloaddition sequence was developed for the convenient preparation of 1,4-disubstituted 1,2,3-triazoles starting from a range of halides, acyl chlorides, ethynyltrimethylsilane, and azides.
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