Reaktion #1918255

ord-1626db07c2914794866fdb5b1c221ae3

Reaktionsgleichung

O
water
COc1ccc(O)cn1
5-hydroxy-2-methoxypyridine
Clc1cnc(Cl)c(Cl)c1
2,3,5-trichloropyridine
[K+].[OH-]
potassium hydroxide
COc1ccc(Oc2ncc(Cl)cc2Cl)cn1
title compound
Ausbeute 88.2%
COc1ccc(Oc2ncc(Cl)cc2Cl)cn1
5-(3,5-Dichloro-pyridin-2-yloxy)-2-methoxy-pyridine
Ausbeute 88.2%

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe precipitate was collected by suction
  2. 2
    Waschenwashed thoroughly with water
  3. 3
    Sonstigedried in a vacuum oven at 45° C.

Vorschrift

A solution of 5-hydroxy-2-methoxypyridine (1.25 g, 10.0 mmol), 2,3,5-trichloropyridine (1.82 g, 10.0 mmol) and potassium hydroxide (85% pure, 1.08 g, 10.0 mmol) in dimethyl sulfoxide (25 mL) was heated at 90° C. for 1.5 hours. The solution was poured slowly into water (200 mL). The precipitate was collected by suction, washed thoroughly with water and dried in a vacuum oven at 45° C., yielding the title compound (2.39 g, 88% yield).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07067517B2uspto-grants-2006_06