Dimethylformamide → HCID 58528867, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of NaH (60%, 312 mg, 7.8 mmol) in oil was rinsed with dry pentane by syringe (3×3 mL) and excess solvent removed under a steam of N2. Solid 4-iodophenol (1.72 g, 7.8 mmol) was added followed by 16 mL of DMF under ice-bath cooling which resulted in a vigorous evolution of gas. After 15 min, solid 3-fluoro-5-(1-methyl-1H-imidazol-2-ylsulfanyl)-benzonitrile (910 mg, 3.9 mmol) was added and the resulting mixture microwave heated at 160° C. for 10 min. After cooling to rt, the mixture was diluted with ether and 3 M aqueous NaOH and shaken. The organic layer was washed with water, brine, dried (MgSO4) and evaporated. The resulting 1.8 g of residue was adsorbed to 4.5 g SiO2 from CH2Cl2 and subjected to MPLC on a 40 g column of SiO2 eluting with % EtOAc in hexanes (time): 33% (10 min), 35-50% (20 min ramp) which provided 1.60 g (95%) of the title compound: 1H NMR (500 MHz, DMSO-d6): δ 3.63 (s, 3H), 6.82 (dd, 1H, J=2, 1 Hz), 6.90 (d, 2H, J=8 Hz), 7.13 (d, 1H, J=1 Hz), 7.26 (t, 1H, J=2 Hz), 7.37 (dd, 114, J=2, 1 Hz), 7.50 (d, 1H, J=1 Hz), 7.75 (d, 2H, J=8 Hz); LCMS (m/z): 434.3 [C17H12IN3OS+H]+.

Provenance & Evidence