Reaktion #312042

Reaktionsgleichung

2-(5-dimethylaminomethyl-2-furylmethylthio)ethylamine

5-(6-methyl-3-pyridylmethyl)-2-methylthio-4-pyrimidone

→

2-[2-(5-dimethylaminomethyl-2-furylmethylthio)ethylamino]-5-(6-methyl-3-pyridylmethyl)-4-pyrimidone

Lösungsmittel

pyridine

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturwas heated
2. 2
   Temperaturunder reflux for 46 hours
3. 3
   Sonstigeevaporated to dryness
4. 4
   WaschenThe residue was washed with hot water

Vorschrift

A mixture of 2-(5-dimethylaminomethyl-2-furylmethylthio)ethylamine (1.30 g), 5-(6-methyl-3-pyridylmethyl)-2-methylthio-4-pyrimidone (1.41 g) and pyridine (10 ml) was heated under reflux for 46 hours and evaporated to dryness. The residue was washed with hot water to give 2-[2-(5-dimethylaminomethyl-2-furylmethylthio)ethylamino]-5-(6-methyl-3-pyridylmethyl)-4-pyrimidone as an oil and this oil was treated with excess of hydrogen chloride in ethanol and evaporated to dryness. The residue was recrystallised from aqueous ethanol containing HCl to give 2-[2-(5-dimethylaminomethyl-2-furylmethylthio)ethylamino]-5-(6-methyl-3-pyridylmethyl)-4-pyrimidone trihydrochloride m.p. 210°-213°. A sample recrystallised a further time from aqueous ethanol containing HCl had m.p. 224°-227°.

Quelle