Sodium hydride → 1-((3-amino-2-cyanophenoxy)methyl)-N-propylcyclopropanecarboxamide

Participants

Reaction Conditions

Reaction Steps

A solution of 1-(hydroxymethyl)-N-propylcyclopropanecarboxamide (Example 198c) (0.67 g, 4.25 mmol) in anhydrous THF (10 mL) was treated with NaH (0.17 g, 4.25 mmol, 60% suspension in mineral oil) at 0° C., under a nitrogen atmosphere. The obtained mixture was stirred at 0° C. for 10 min and at rt over 30 min. Then, a solution of 2-amino-6-fluorobenzonitrile (0.53 g, 3.86 mmol) in THF (5.0 mL) was added and the obtained mixture was heated at reflux overnight. The cold mixture was quenched with saturated aqueous solution of NH4Cl (20 mL) and extracted with EtOAc (3×50 mL). The combined extract was washed with brine, dried over anhydrous MgSO4, filtered and evaporated. The residue was purified by chromatography on silica gel using gradient hexanes→hexanes/EtOAc (4:6), to give 0.75 g (71%) of the title compound as a yellow solid. 1H-NMR (400 MHz, DMSO-d6) δ 7.51 (t, J=6.0 Hz, 1H), 7.17 (t, J=8.0 Hz, 1H), 6.34 (d, J=8.4 Hz, 1H), 6.19 (d, J=8.4 Hz, 1H), 5.97 (broad s, 2H), 4.13 (s, 2H), 3.04 (q, J=6.4 Hz, 2H), 1.43 (hex, J=6.8 Hz, 2H), 1.05-1.11 (m, 2H), 0.78-0.86 (m, 5H).

Provenance & Evidence