Hydrazine hydrate (1:1) → HCID 11149025, compound

Participants

Reaction Steps

In ethanol (20 ml), 1-(2-thienyl)-1,3-nonanedione (1.30 g) and hydrazine hydrate (1.26 g) are refluxed for 3 hours by heating. After the reaction is completed, the solvent is distilled off. The obtained residue is added to petroleum ether and crystallized to obtain the objective 3-(2-thienyl)-5-n-hexylpyrazole (0.76 g) as colorless crystals. mp. 53-55° C.

Provenance & Evidence