Reaktion #955925

Reaktionsgleichung

2-(bromomethyl)pyridine hydrobromide

6-(2,4-dimethylphenyl)pyridazine-3(2H)-thione

EtONa

→

3-(2,4-Dimethylphenyl)-6-(pyridin-2-ylmethylthio)pyridazine

Ausbeute 35.0%

Lösungsmittel

EtOH

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe reaction was irradiated in a microwave at 140° C. for 4 min
2. 2
   TrocknenThe crude mixture was dried down
3. 3
   Sonstigepurified on silica gel (Eluent: 5% MeOH in DCM)

Vorschrift

To a mixture of 2-(bromomethyl)pyridine hydrobromide (116 mg; 0.46 mmol) and 6-(2,4-dimethylphenyl)pyridazine-3(2H)-thione (Example 13a) (100 mg, 0.46 mmol) in EtOH (3 mL) was added EtONa (20% in EtOH, 25 μl) and the reaction was irradiated in a microwave at 140° C. for 4 min. The crude mixture was dried down and purified on silica gel (Eluent: 5% MeOH in DCM) to give 3-(2,4-Dimethylphenyl)-6-(pyridin-2-ylmethylthio)pyridazine (49 mg, 35%) as a white solid. 1H NMR (300 MHz, dMSO: δ 2.49 (s, 3H), 2.54 (s, 3H), 4.09 (s, 2H), 6.32-6.37 (m, 2H), 6.45-6.52 (m, 2H), 6.75-6.78 (d, 1H), 6.84-6.87 (m, 2H), 6.95-6.98 (t, 1H), 7.67-7.68 (d,1H); MS (M+H, 308).

Quelle