Hydrochloric Acid → HCID 9811483, compound

Participants

Reaction Steps

Cesium carbonate (1.30 g, 4.0 mmol) was suspended in a solution of 1,2-bis-(4-hydroxy-3,5-diiodophenyl)-ethane-1,2-dione (as prepared in Example 15, 1.49 g, 2.0 mmol) and benzyl 2-bromoacetate (0.46 g, 2.0 mmol) in 8 mL DMF. The mixture was stirred at RT for 16 hours and was poured into 1 M HCl. The resulting precipitate was isolated by filtration, then was dissolved in hot chloroform and filtered through Celite. The solvent was removed by rotary evaporation, and the crude material was purified by silica gel column chromatography (5% MeOH in CH2Cl2), yielding the title compound as a yellow powder (258 mg, 14%). 1H NMR (400 MHz, DMSO-d6): δ 8.30 (s, 2H), 8.23 (s, 2H), 7.45-7.34 (m, 5H), 5.27 (s, 2H), 4.73 (s, 2H). HPLC (50-90), 15.74 min. LRMS (EI−) calc'd for [C23H14I4O6—H] 893.0, found 892.6.

Provenance & Evidence