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CAS No 492-70-6 , meso-1,2-Diphenyl-1,2-ethanediol

  • Name: meso-1,2-Diphenyl-1,2-ethanediol
  • Synonyms: meso-1,2-Diphenyl-1,2-ethanediol;Hydrobenzoin / 1,2-Diphenyl-1,2-ethanediol;(?-Hydrobenzoin;meso-1,2-Diphenylethylene glycol;Hydrobenzoin;meso-Hydrobenzoin/meso-1,2-Diphenyl-1,2-ethanediol;()-Hydrobenzoin;Diphenylethanediol;1,2-diphenylethane-1,2-diol;(+/-)-Hydrobenzoin;(1R,2S)-diphenyl-1,2-ethanediol;meso-Hydrobenzoin / 1,2-Diphenyl-1,2-ethanediol;1,2-Diphenyl-1,2-ethanediol;meso-Hydrobenzoin;6-Chloro-7-Azaindole;
  • CAS Registry Number:
  • Flash Point: 179.8°C
  • Boiling Point: 373°C at 760 mmHg
  • Density: 1.193g/cm3
  • Refractive index: 1.624
  • Flash Point: 179.8°C
  • EINECS: 207-758-3
  • Molecular Weight: 214.25976
  • InChI: InChI=1S/C14H14O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10,13-16H/t13-,14+
  • Molecular Formula: C14H14O2
  • Molecular Structure:CAS No:492-70-6 meso-1,2-Diphenyl-1,2-ethanediol

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492-70-6 MESO-HYDROBENZOIN

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492-70-6 meso-Hydrobenzoin / 1,2-Diphenyl-1,2-ethanediol

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492-70-6 meso-1,2-Diphenyl-1,2-ethanediol

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1/1
References of meso-1,2-Diphenyl-1,2-ethanediol
Title: Hydrobenzoin
CAS Registry Number: 492-70-6
CAS Name: 1,2-Diphenyl-1,2-ethanediol
Synonyms: diphenylethyleneglycol
Molecular Formula: C14H14O2
Molecular Weight: 214.26
Percent Composition: C 78.48%, H 6.59%, O 14.93%
Literature References: Prepn of d-, l-, dl- and meso-forms: Forst, Zincke, Ann. 182, 262, 275 (1876); Irvine, Weir, J. Chem. Soc. 91, 1390 (1907); Buck, Jenkins, J. Am. Chem. Soc. 51, 2163 (1929); L. F. Fieser, Organic Experiments (D. C. Heath, Boston, 1964) pp 210, 214, 216-217, 229-231. Improved method for prepn of dl-form from the meso isomer: Collet, Synthesis 1973, 664.
 
Derivative Type: dl-Form
Properties: Crystals from ether + petr ether, mp 120°. Resolved into d- and l-forms by slow, repeated crystallizations from ether.
Melting point: mp 120°
 
Derivative Type: d-Form
Properties: [a]D20 +97.6° (chloroform).
Optical Rotation: [a]D20 +97.6° (chloroform)
 
Derivative Type: l-Form
Properties: [a]D20 -97.0° (chloroform).
Optical Rotation: [a]D20 -97.0° (chloroform)
 
Derivative Type: meso-Form
Properties: Monoclinic leaflets from alcohol or water, mp 139°. Soly in water: 0.25% at 20°, 1.25% at 100°. Freely sol in hot alcohol, chloroform. Infrared absorption (chloroform): 2.82, 2.96m. Dipole moment 2.67.
Melting point: mp 139°