Lithium Chloride → HCID 66748152, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of [5-bromo-2-(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-1,2,4-triazol-3-yl)-3-thienyl](4-chlorophenyl)methanol (3.07 g, 5.52 mmol)) (synthesized in an analogous way as described in Example 2), N-[4-(trimethylstannyl)pyridin-2-yl]acetamide (1.81 g, 6.07 mmol), tetrakis(triphenylphosphine)palladium(0) (319 mg, 0.28 mmol), copper(I) iodide (315 mg, 1.65 mmol) and lithium chloride (702 mg, 16.5 mmol) in 1,4-dioxane (25.0 mL) was stirred at 100° C. for 2 hours under an atmosphere of nitrogen. The reaction was cooled to room temperature and concentrated with Celite. The crude mixture was purified by column chromatography (SiO2, eluent with methanol in dichloromethane, 0-5% gradient) to afford a yellow solid (2.48 g, 80%). LCMS: (AA) ES+ 556, 558; 1H NMR (400 MHz, CDCl3) δ: 8.48 (br s, 1H), 8.43 (br s, 1H), 8.25 (s, 1H), 8.19 (d, J=5.6 Hz, 1H), 7.41 (d, J=8.4 Hz, 2H), 7.33-7.24 (m, 2H), 7.19 (s, 1H), 7.16 (dd, J=1.2, 5.6 Hz, 1H), 6.22 (s, 1H), 6.05 (br s, 1H), 5.51 (s, 2H), 3.66 (t, J=8.4 Hz, 2H), 2.22 (s, 3H), 0.94 (t, J=8.4 Hz, 2H), −0.01 (s, 9H).

Provenance & Evidence