Sodium Hydroxide → HCID 68141719, compound

Participants

Reaction Conditions

Reaction Steps

3-Phenyl-5-chloroindazole (4.57 g), piperidinoethyl chloride (3.6 g), and triethylbenzylammonium chloride (0.5 g) were added to 50% aqueous sodium hydroxide solution (5 ml) followed by stirring at 70° C for 1 hour. After completion of the reaction, the mixture was extracted with benzene and the extract was washed with water, dried over sodium sulfate and concentrated. The residue was treated with ethanol-hydrochloric acid to obtain 4.3 g of 1-piperidinoethyl-3-phenyl-5-chloroindazole hydrochloride having a melting point between 230°-235° C after recrystallization from acetone.

Provenance & Evidence