Iodine → HCID 66603717, compound

Participants

Reaction Steps

To a solution of 5-chlorochroman (0.101 g; 0.6 mmol) and silver nitrate (0.112 g; 0.66 mmol) in methanol (6 mL) was added iodine (0.153 g; 0.6 mmol) and the reaction mixture for 30 min. The reaction was quenched by adding a solution of sodium thiosulphate 0.5M (2.5 mL) and the aqueous layer was extracted with ethyl acetate. The organics were combined, dried over sodium sulphate, filtered and concentrated under reduced pressure. Purification by flash chromatography on silica gel using a gradient of ethyl acetate (5-80%) in heptane furnished 0.088 g (50%) of 5-chloro-4-iodochroman.

Provenance & Evidence