Reaktion #68908

ord-9bf078de8aa64806aabfd30258c40a4a

Reaktionsgleichung

O=[N+]([O-])c1cccc(S(=O)(=O)OC[C@@H]2CO2)c1
(S)-glycidyl 3-nitrobenzene sulfonate
Cc1ccc(O)cn1
6-Methyl-pyridin-3-ol
[H-].[Na+]
NaH
Cc1ccc(OC[C@@H]2CO2)cn1
title compound
Cc1ccc(OC[C@@H]2CO2)cn1
(S)-2-Methyl-5-oxiranylmethoxy-pyridine

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    workup.STIRRINGwas then stirred at room temperature for 14 hours
  2. 2
    SonstigeThe reaction was quenched with NaHCO3 (saturated)
  3. 3
    Extraktionextracted three times with ethyl acetate
  4. 4
    TrocknenThe organic layer was dried with magnesium sulfate
  5. 5
    Filtrationfiltered
  6. 6
    Sonstigethe solvent was evaporated under reduced pressure
  7. 7
    Sonstigeto yield crude product which
  8. 8
    Sonstigewas purified by silica gel chromatography (60% Ethyl acetate/heptane)

Vorschrift

6-Methyl-pyridin-3-ol (0.218 g, 2.0 mmol) was placed in a flask with DMF (10 mL) and NaH (60% dispersion in oil, 77 mg, 2.0 mmol) and stirred for 30 min. at room temperature. (S)-glycidyl 3-nitrobenzene sulfonate (0.52 g, 2.0 mmol) was then added to the reaction mixture, which was then stirred at room temperature for 14 hours. The reaction was quenched with NaHCO3 (saturated) and then extracted three times with ethyl acetate. The organic layer was dried with magnesium sulfate, filtered and the solvent was evaporated under reduced pressure to yield crude product which was purified by silica gel chromatography (60% Ethyl acetate/heptane) to yield the title compound as a residue.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08530475B2uspto-grants-2013_09