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3-Methylthiophene

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3-Methylthiophene Basic information
3-Methylthiophene Chemical Properties
  • Melting point:−69 °C(lit.)
  • Boiling point:114 °C738 mm Hg(lit.)
  • Density 1.016 g/mL at 25 °C(lit.)
  • vapor pressure 42.4 mm Hg ( 37.7 °C)
  • refractive index n20/D 1.519(lit.)
  • Flash point:52 °F
  • storage temp. Flammables area
  • solubility 0.40g/l
  • form Liquid
  • color Clear colorless to light yellow
  • Specific Gravity1.016
  • Water Solubility insoluble
  • BRN 1300
  • InChIKeyQENGPZGAWFQWCZ-UHFFFAOYSA-N
  • CAS DataBase Reference616-44-4(CAS DataBase Reference)
  • NIST Chemistry ReferenceThiophene, 3-methyl-(616-44-4)
  • EPA Substance Registry SystemThiophene, 3-methyl- (616-44-4)
Safety Information
MSDS
3-Methylthiophene Usage And Synthesis
  • Chemical Propertiesclear colorless to light yellow liquid
  • UsesA thiophene derivative used as an electropolymerization monomer in conducting polymer research.
  • UsesConducting polymer precursor.1
  • UsesThiophene, 2-methyIthiopheney and 3-methylthiophene act as inhibitors for the polymerization of trichloroethylene in a solvent used for the degreasing of iron and aluminum, said polymerization being catalyzed by contact of the solvent with the metals. Bonz, in 1885, reported the formation of a dichloroethylthiophene from chlorination of 2-ethylthiophene in the cold. Is Opolski studied the chlorination of 2- and 3-methylthiophenes, 2-ethyl- and 2-butylthiophene and reported constants for the monochloro derivatives. Voerman has chlorinated 3-methylthiophene in the side chain with phosphorus trichloride in the sunlight, but concurrent ring chlorination predominates. 3-Methylthiophene gives a unique reaction with alkyl- or arylsodium in which the substitution takes place exclusively in the 5-position rather than in the expected 2-position.
  • Uses3-Methylthiophene is found in coffee and coffee products. it is a maillard product, present in roast coffee aroma.
    3-Methylthiophene is a member of thiophenes. Conducting polymer precursor. Copolymerization of 3-alkylthiophene and 3-methylthiophene is a promising approach to provide a polymer which has both solution processible property and high electrical conductivity.
  • Purification MethodsDry it with Na2SO4, then distil it from sodium. [Beilstein 17 III/IV 277, 17/1 V 331.]
3-Methylthiophene Preparation Products And Raw materials
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