Trifluoroacetic acid → HCID 59242667, compound

Participants

Reaction Steps

A mixture of 4-[5-(4′-fluorobiphenyl-4-yl)-6-trifluoromethyl-pyridazin-3-yl]-piperazine-1-carboxylic acid tert-butyl ester (D12) (0.115 g, 0.23 mmol) and trifluoroacetic acid (2 ml) in dichloromethane (8 ml) was stirred at room temperature for 2 h. The solvent was evaporated in vacuo and then, dichloromethane and a saturated solution of sodium carbonate were added. The organic layers were separated, dried (Na2SO4), filtered and the solvent evaporated in vacuo. The residue was then purified by column chromatography (silica gel; 1-3% ammonia in methanol (7M)/dichloromethane). The desired fractions were collected and evaporated in vacuo to yield E9 (0.084 g, 91%). C21H18F4N4 requires 402; Found 403 (MH+).

Provenance & Evidence