2-Chlorothiophene → HCID 86639726, compound

Participants

Reaction Steps

Thienyl chloride (2.6 ml; 0.036 mol) was added to a suspension of 2-(2-methoxyethyl)-2H-indazole-3-carboxylic acid (3.6 g; 0.016 mol) in toluene (100 ml) and the reaction mixture was heated under reflux for 24 h. The solvent was removed by evaporation at reduced pressure and the residue was taken up twice in n-hexane. 3.9 g of 2-(2-methoxyethyl)-2H-indazole-3-carbonyl chloride was thus obtained.

Provenance & Evidence