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(R)-(-)-alpha-Methoxyphenylacetic acid

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(R)-(-)-alpha-Methoxyphenylacetic acid Basic information
(R)-(-)-alpha-Methoxyphenylacetic acid Chemical Properties
  • Melting point:66-68 °C(lit.)
  • alpha -160.4 º (C=1, MEOH)
  • Boiling point:164-166°C 18mm
  • Density 1.1708 (rough estimate)
  • refractive index -147 ° (C=0.5, EtOH)
  • Flash point:164-166°C/18mm
  • storage temp. 2-8°C
  • pka3.10±0.10(Predicted)
  • form Fine Crystalline Powder or Needles
  • color White
  • optical activity[α]20/D -150±3°, c = 0.5% in ethanol
  • BRN 3589257
  • CAS DataBase Reference3966-32-3(CAS DataBase Reference)
  • NIST Chemistry Reference(R)-(-)-«alpha»-methoxyphenylacetic acid(3966-32-3)
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-36
  • WGK Germany 3
  • HS Code 29189900
MSDS
(R)-(-)-alpha-Methoxyphenylacetic acid Usage And Synthesis
  • Chemical Propertieswhite fine crystalline powder or needles
  • Purification MethodsPurify the acids by recrystallising from *C6H6/pet ether (b 80-100o). [Neilson & Peters J Chem Soc 1519 1962, Weizmann et al. J Am Chem Soc 70 1153 1948, Pirie & Smith J Chem Soc 338 1932, NMR: Dale & Mosher J Am Chem Soc 9 5 512 1973, for resolution: Roy & Deslongchamps Can J Chem 63 651 1985, Trost et al. J Am Chem Soc 1 0 8 4974 1986.] The racemic mixture has m 72o, b 121-122o/0.4mm, 165o/18mm (from pet ether) [Braun et al. Chem Ber 6 3 2847 1930]. [Beilstein 10 IV 566.]
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