Potassium Carbonate → 6-Chloro-N-(2-(4-fluorophenyl)-2-methylpropyl)-5-methylpyridazin-3-amine

Beteiligte Stoffe

Reaktionsschritte

A solution of (2-(4-fluorophenyl)-2-methylpropan-1-amine (5.5 g, 33 mmol, 1.8 equiv), 3,6-dichloro-4-methylpyridazine (3.0 g, 18 mmol, 1.0 equiv) and K2CO3 (5.1 g, 37 mmol, 2.0 equiv) in isopropanol (7.5 mL) was stirred at 100° C. under a blanket of nitrogen for 18 hours. The cooled mixture was partitioned between water and EtOAc and the organic fraction was concentrated in vacuo. Purification over silica gel using a 20-35% gradient of EtOAc/hexanes gave the desired product (0.80 g, 15%) of a yellow oil which was determined by HPLC to be a 5:1 mixture of regioisomers by HPLC.

Herkunft & Nachweise