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218170 Sigma-Aldrich

Ethynyltrimethylsilane

98%

Synonym: Trimethylsilylacetylene

  • CAS Number 1066-54-2

  • Linear Formula (CH3)3SiC≡CH

  • Molecular Weight 98.22

  •  Beilstein/REAXYS Number 906752

  •  MDL number MFCD00008569

  •  PubChem Substance ID 24853048

  •  NACRES NA.22

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Properties

Related Categories Alkynes, Building Blocks, Chemical Synthesis, Organic Building Blocks, Terminal More...
Quality Level   200
vapor pressure   4.18 psi ( 20 °C)
assay   98%
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

Description

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

Packaging

1, 5, 25, 100 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 1993BF 3 / PGII
WGK Germany 
WGK 3
Flash Point(F) 
-29.2 °F
Flash Point(C) 
-34 °C

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

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Keywords: Acylations, Alkylations

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Peer-Reviewed Papers
15

References

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