Sodium Iodide → HCID 178466555, compound

Participants

Reaction Steps

A mixture of N-tert-butyl-2-[2-(1-chloro-ethyl)-1H-benzoimidazol-5-yl]-benzenesulfonamide (0.042 g, 0.107 mmol), 4-trifluoromethyl-phenol (0.069 g, 0.428 mmol), Na2CO3 (0.045 g, 0.428 mmol), and NaI (0.064 g, 0.428 mmol) in DMF at rt (2 mL) was stirred for 24 hours. The reaction mixture was purified by chromatography (silica, hexanes: EtOAc, 1:1) to afford the protected product. This material dissolved in 1,2-dichloroethane (1 mL) and TFA (1 mL), was heated to 60° C. for 2 hours, and then cooled. The solvent was evaporated and the resulting crude material was purified by chromatography (silica, EtOAc: hexanes, 2:1) afforded the title compound as a pale yellow oil (0.033, 67%). 1H NMR (400 MHz, CD3OD) δ (ppm): 8.14 (dd, 1H, J=8.0 Hz, J=1.2 Hz), 7.70 (dd, 1H, J=1.6 Hz, J=0.8 Hz), 7.67-7.58 (m, 4H), 7.55 (td, 1H, J=8.6 Hz, J=1.6 Hz), 7.39 (td, 2H, J=9.0 Hz, J=1.6 Hz), 7.20 (d, 2H, J=8.8 Hz), 5.91 (q, 1H), 1.87 (d, 3H, J=6.8 Hz). Mass Spectrum (LCMS, ESI pos.) Calcd. For C24H22F3N4O3S: 503.5 (M+MeCN+H), Found 503.2.

Provenance & Evidence