Реакция #1973960

ord-529c28267e0f454cba8fa9deb5d06135

Уравнение реакции

COC(=O)c1cc([N+](=O)[O-])cc(C(C)(C)C)c1O
Methyl 3-tert-butyl-2-hydroxy-5-nitrobenzoate
O=C([O-])[O-].[K+].[K+]
potassium carbonate
COS(=O)(=O)OC
dimethyl sulfate
COC(=O)c1cc([N+](=O)[O-])cc(C(C)(C)C)c1OC
title compound
Выход 87.0%
COC(=O)c1cc([N+](=O)[O-])cc(C(C)(C)C)c1OC
methyl 3-tert-butyl-2-methoxy-5-nitrobenzoate
Выход 87.0%

Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Температураto reflux for 16 h
  2. 2
    ФильтрацияThe mixture was then filtered
  3. 3
    Промывкаthe solid was washed with ethyl acetate
  4. 4
    КонцентрированиеThe resulting organic liquid was then concentrated under vacuum to an oil
  5. 5
    workup.DISSOLUTIONredissolved in ethyl acetate (600 mL)
  6. 6
    ПромывкаThe organic solution was then washed with water
  7. 7
    Другоеdried
  8. 8
    Фильтрацияfiltered
  9. 9
    Концентрированиеconcentrated under vacuum to an oil that
  10. 10
    Другоеwas then subjected to purification via column chromatography (gradient of 5% to 40% EtOAc/Hexanes)

Методика

Methyl 3-tert-butyl-2-hydroxy-5-nitrobenzoate (11.41 g, 45.0 mmol), potassium carbonate (9.34 g, 67.6 mmol), acetone (200 mL), and dimethyl sulfate (6.46 g, 67.6 mmol) were added together. The resultant mixture was then heated to reflux for 16 h. The mixture was then filtered and the solid was washed with ethyl acetate. The resulting organic liquid was then concentrated under vacuum to an oil and redissolved in ethyl acetate (600 mL). The organic solution was then washed with water, dried, filtered and concentrated under vacuum to an oil that was then subjected to purification via column chromatography (gradient of 5% to 40% EtOAc/Hexanes) to yield the title compound as an oil (10.42, 87%).

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US08501238B2uspto-grants-2013_08