Sodium hydride → 6-[2-(5-Bromopyrimidin-2-yloxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-amine

HRID 2306

Reaktionsgleichung

Reaktionsgleichung von HRID 2306
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]([O:8][CH2:9][CH2:10][OH:11])[C:3]=1[C:12]1[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][CH:13]=1.[H-].[Na+].[Br:21][C:22]1[CH:23]=[N:24][C:25](Cl)=[N:26][CH:27]=1.[Cl-].[NH4+]>O1CCCC1>[Br:21][C:22]1[CH:23]=[N:24][C:25]([O:11][CH2:10][CH2:9][O:8][C:4]2[N:5]=[CH:6][N:7]=[C:2]([NH2:1])[C:3]=2[C:12]2[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][CH:13]=2)=[N:26][CH:27]=1

Komponenten

6

Edukt 4

HCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 6066655-Bromo-2-chloropyrimidineHCID 111182972-{6-Amino-5-(4-methylphenyl)-pyrimidin-4-yloxy}ethanol

Produkt 1

HCID 117291026-[2-(5-Bromopyrimidin-2-yloxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-amineAusbeute 91,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of 2-{6-amino-5-(4-methylphenyl)pyrimidin-4-yloxy}-ethanol (7.54 g) in tetrahydrofuran (150 ml) is added sodium hydride (60% dispersion-type, 1.47 g), and thereto is added 5-bromo-2-chloropyrimidine (7.73 g), and the mixture is stirred at room temperature overnight. To the reaction solution is added saturated aqueous ammonium chloride solution, and the mixture is evaporated to remove the solvent. The precipitated crystals are collected by filtration, washed and dried. The crude crystals are purified by silica gel column chromatography (solvent; chloroform/methanol=100:1~80:1), and recrystallized from tetrahydrofuran/diethyl ether to give 6-[2-(5-bromopyrimidin-2-yloxy)ethoxy]-5-(4-methylphenyl)pyrimidin-4-amine (11.27 g).

Aufarbeitung

  1. customthe mixture is evaporated
  2. customto remove the solvent
  3. filtrationThe precipitated crystals are collected by filtration
  4. washwashed
  5. customdried
  6. customThe crude crystals are purified by silica gel column chromatography (solvent; chloroform/methanol=100:1~80:1)
  7. customrecrystallized from tetrahydrofuran/diethyl ether

Quellen und Nachweise

ORD-Eintrag
ord-a7b7ef5f674140eda2b87b65e3637f7d
Quelldatensatz
uspto-grants-1998_03
Patentnummer
US05728706

Verknüpfte Notizen

Wird geladen…