Reaction #336852

Reaction equation

4a

2-Phenyl-2,5-dihydro-pyrazolo-(4,3-c) quinolin-3-one

2-fluorophenyl hydrazine hydrochloride

→

title compound

2-(2′-Fluorophenyl)-2,5-dihydro-pyrazolo-(4,3-c)quinolin-3-one

Conditions

Procedure

The title compound was prepared following the procedure described in Step 3 for the synthesis of 4a, using 2-fluorophenyl hydrazine hydrochloride instead of phenyl hydrazine hydrochloride. 1H NMR (DMSO-d6) δ (ppm): 7.13-7.46 (3H, m), 7.48-7.62 (2H, m), 7.67 (1H, dd, J=6.87, 1.37 Hz), 7.73 (1H, d, J=8.24 Hz), 8.11 (1H, dd, J=8.24, 1.09 Hz), 8.70 (1H, d, J=6.31 Hz). m/z 280.3 (MH+).

Source