Reaktion #357284

ord-8b76fe2d56cc4966b0145256373f6fc8

Reaktionsgleichung

O=[N+]([O-])c1cccc(S(=O)(=O)OC[C@@H]2CO2)c1
(2S)-oxiran-2-ylmethyl-3-nitrobenzenesulfonate
CNC(=O)c1ccccc1O
2-hydroxy-N-methylbenzamide
O=C([O-])[O-].[Cs+].[Cs+]
cesium carbonate
CNC(=O)c1ccccc1OC[C@@H]1CO1
subtitled compound
Ausbeute 91.4%
CNC(=O)c1ccccc1OC[C@@H]1CO1
N-Methyl-2-[(2S)-oxiran-2-ylmethoxy]benzamide
Ausbeute 91.4%

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe reaction mixture was partitioned between ethyl acetate and water
  2. 2
    TrocknenThe organic phase was dried over sodium sulphate, Na2SO4
  3. 3
    Filtrationfiltered
  4. 4
    Einengenconcentrated
  5. 5
    SonstigeThe residue was purified by silica gel flash chromatography (0-50% ethyl acetate in petroleum ether)

Vorschrift

A mixture of (2S)-oxiran-2-ylmethyl-3-nitrobenzenesulfonate (388.5 mg, 1.50 mmol), 2-hydroxy-N-methylbenzamide (226.5 mg, 1.50 mmol) and cesium carbonate (586 mg, 1.80 mmol) in dimethylformamide (6 mL) was kept on stirring at room temperature overnight. The reaction mixture was partitioned between ethyl acetate and water. The organic phase was dried over sodium sulphate, Na2SO4, filtered and concentrated. The residue was purified by silica gel flash chromatography (0-50% ethyl acetate in petroleum ether) to give the subtitled compound (284 mg).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07449475B2uspto-grants-2008_11