4-Ethylphenylacetylene

4-Ethylphenylacetylene
  • CAS No.:40307-11-7
Other grades of this product :
4-Ethylphenylacetylene Basic information
Product Name:4-Ethylphenylacetylene
Synonyms:4-ETHYLPHENYLACETYLENE;1-ETHYL-4-ETH-1-YNYLBENZENE;1-ETHYL-4-ETHYNYL-BENZENE;Benzene, 1-ethyl-4-ethynyl- (6CI, 9CI);4-Ethylphenylacetylene 97%;4-Ethylphenylacetylene97%;BENZENE, 1-ETHYL-4-ETHYNYL-;1-ETH-1-YNYL-4-ETHYLBENZENE
CAS:40307-11-7
MF:C10H10
MW:130.19
EINECS:
Product Categories:Aromatic Compounds;Acetylenes;Acetylenic Hydrocarbons having Benzene Ring;Alkynes;Organic Building Blocks;Terminal;Liquid crystal intermediates
Mol File:40307-11-7.mol
4-Ethylphenylacetylene Chemical Properties
Boiling point 30 °C/0.05 mmHg (lit.)
density 0.930 g/mL at 25 °C (lit.)
refractive index n20/D 1.5420(lit.)
Fp 160 °F
storage temp. Keep in dark place,Sealed in dry,Room Temperature
form clear liquid
color Colorless to Light yellow
CAS DataBase Reference40307-11-7(CAS DataBase Reference)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 16-26-36-37/39
RIDADR UN 3334
WGK Germany 3
Hazard Note Irritant
HS Code 29029090
MSDS Information
ProviderLanguage
SigmaAldrich English
4-Ethylphenylacetylene Usage And Synthesis
Chemical PropertiesYellow liquid
UsesIntermediates of Liquid Crystals
Uses1-Ethyl-4-ethynylbenzene may be used to synthesize:
  • 2,4-bis[(4-ethylphenyl)ethynyl]-6-methoxy-1,3,5-triazine
  • 2-[(4-ethylphenyl)ethynyl]-4-methoxy-6-(phenylethynyl)-1,3,5-triazine
  • 2-chloro-4-[(4-ethylphenyl)ethynyl]-6-methoxy-1,3,5-triazine
  • 4-chloro-6-[(4-ethylphenyl)ethynyl]-N,N-diphenyl-1,3,5-triazin-2-amine
General Description1-Ethyl-4-ethynylbenzene undergoes homocoupling reaction in the presence of copper(I) chloride (catalyst) and air (oxidant) to yield symmetrical 1,4-disubstituted 1,3-diyne.
4-Ethylphenylacetylene Preparation Products And Raw materials
Raw materials4-Ethylacetophenone-->1-ETHYL-4-IODOBENZENE-->4-Ethylbenzaldehyde-->Cuprous iodide-->Trimethylsilylacetylene

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