4-Fluoro-n-hydroxybenzimidamide → HCID 136492494, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-fluoro-N′-hydroxybenzimidamide (Intermediate-18, 0.073 g, 0.47 mmol) in dry DMF (3 mL) under nitrogen atmosphere was added 4-(3-(2-chloro-6-fluorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)benzonitrile (step-4 of Intermediate-17, 0.100 g, 0.31 mmol) and ZnCl2 (0.0087 g, 0.06 mmol). The reaction mass was heated at 100° C. for 8-10 h. The reaction mass was quenched with water, extracted in DCM and column purified to afford 0.025 g of desired product. 1H NMR (DMSO-d6): δ 7.02 (br s, 1H), 7.33 (t, 1H), 7.45-7.54 (m, 2H), 7.61 (d, 1H), 7.70 (m, 1H), 7.83 (t, 1H), 8.09-8.17 (m, 2H), 8.26-8.30 (m, 2H), 12.81 (br s, 1H). MS (m/z): 452.05 [M+H]+.

Provenance & Evidence