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(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid

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(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid Basic information
(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid Chemical Properties
  • Melting point:46-49 °C(lit.)
  • Boiling point:95-97 °C0.05 mm Hg(lit.)
  • alpha D24 -71.8± 0.6° (c = 3.28 in CH3OH)
  • Density 1.303 g/mL at 25 °C(lit.)
  • refractive index n20/D 1.474(lit.)
  • Flash point:>230 °F
  • storage temp. 2-8°C
  • solubility Readily soluble in hexane, ether, THF, CH2Cl2, benzene.
  • form Viscous Liquid or Low Melting Solid
  • pka1.47±0.10(Predicted)
  • Specific Gravity1.303
  • color Clear colorless or white
  • optical activity[α]20/D 73±1°, c = 2% in methanol
  • Sensitive Hygroscopic
  • Merck 14,6280
  • BRN 3591561
  • CAS DataBase Reference17257-71-5(CAS DataBase Reference)
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-36-37/39
  • WGK Germany 3
  • 3-10
  • Hazard Note Irritant/Keep Cold
  • HazardClass IRRITANT, HYGROSCOPIC, KEEP COLD
  • HS Code 29189900
MSDS
(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid Usage And Synthesis
  • Chemical Propertiesclear colorless viscous liquid
  • Purification MethodsA likely impurity is phenylethylamine from the resolution. Dissolve the acid in Et2O/*benzene (3:1), wash with 0.5N H2SO4, then water, dry over magnesium sulfate, filter, evaporate and distil it. [Dale et al. J Org Chem 34 2543 1969, J Am Chem Soc 75 512 1973.]
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