Potassium Carbonate → 2-Ethyl-1-(2,4,6-triiodophenoxy)-hexane

Beteiligte Stoffe

Reaktionsschritte

2-Ethyl-bromohexane (10.4 g, 53.0 mmol), triiodophenol (25.5 g, 54.0 mmol) and potassium carbonate (7.5 g, 54.3 mmol) were reacted in dry DMF (110 ml) at 77° C as for 2-(2,4,6-triiodophenoxy)butane. After stirring for 20 hrs, the reaction was cooled, diluted with DMF, filtered through a pad of celite and evaporated in vacuo. The resulting residue was taken up in EtOAc (500 ml), washed with water (200 ml), 1N aqueous sodium hydroxide (200 ml), water (2×200 ml) and brine (200 ml), dried (Na2SO4), filtered and evaporated. Flash column chromatography (silica, hexanes) provided 2-ethyl-1-(2,4,6-triiodophenoxy)-hexane (22.8 g, 73.7%) as a clear viscous oil.

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