Реакция #684967

ord-d85f81ba624d45efa636532def1a1f40

Уравнение реакции

COCCl
Chloromethyl methyl ether
Oc1cccnc1Cl
2-chloro-3-hydroxypyridine
[H-].[Na+]
Sodium hydride
O
water
COCOc1cccnc1Cl
title compound
Выход 89.0%
COCOc1cccnc1Cl
2-Chloro-3-(methoxymethoxy)pyridine
Выход 89.0%

Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Другоеthe resulting reaction mixture
  2. 2
    workup.STIRRINGwas stirred at that temperature for 30 minutes
  3. 3
    workup.WAITat room temperature for another 2 hours
  4. 4
    Экстракцияthe reaction mixture was extracted with ethyl acetate
  5. 5
    Промывкаwashed with saturated brine
  6. 6
    Концентрированиеconcentrated under reduced pressure
  7. 7
    ДругоеThe residue was purified by silica gel column chromatography

Методика

Sodium hydride (66%, 633 mg, 17.4 mmol) was added to an ice-cooled solution of 2-chloro-3-hydroxypyridine (2.05 g, 15.8 mmol) in tetrahydrofuran (30 ml) under nitrogen atmosphere, and this reaction mixture was stirred at that temperature for 15 minutes. Chloromethyl methyl ether (1.32 ml, 17.4 mmol) was added, and the resulting reaction mixture was stirred at that temperature for 30 minutes, then at room temperature for another 2 hours. After water was added, the reaction mixture was extracted with ethyl acetate, washed with saturated brine, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (2.44 g).

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US07897387B2uspto-grants-2011_03