Iodine → HCID 59596235, compound

Participants

Reaction Steps

A solution of 4-bromo-1-methoxy-2-methylbenzene (1.21 g, 6.0 mmol) in diethyl ether (10 mL) was added dropwise to magnesium (0.22 g, 9.0 mmol) and iodine. The resulting mixture was heated to reflux for 2 h and was then allowed to cool to room temperature. The prepared reagent was added to a solution of N-((3-bromo-4-fluorophenyl)(2-cyanophenyl)methylene)-2-methylpropane-2-sulfinamide (Scheme #11 F, 0.82 g, 2.0 mmol) in tetrahydrofuran (20 mL) at 0°. The mixture was stirred at 0° C. for 1 h and then quenched by addition of saturated aqueous ammonium chloride. The reaction mixture was partitioned between water and ethyl acetate, the organic phase was dried over magnesium sulfate and evaporated. The residue was dissolved in methanol (20 mL) and was treated with hydrochloric acid (2M in diethyl ether, 2 mL) overnight. The solvent was evaporated and the residue was partitioned between saturated aqueous sodium bicarbonate and chloroform, the organic phase was dried over magnesium sulfate and evaporated. Purification by flash chromatography using chloroform:methanol (9:1) afforded 0.53 g (63% yield) of the title compound. 1H NMR (DMSO-d6) δ 7.90-7.74 (m, 1 H), 7.74-7.67 (m, 1 H), 7.59-7.42 (m, 3 H), 7.35-7.21 (m, 2 H), 7.12-7.00 (m, 2 H), 6.97-6.71 (m, 3 H), 3.74 (s, 3 H), 2.06 (s, 3 H); MS (ESI) m/z 425, 427 [M+1]+.

Provenance & Evidence