Water → 2,3,5-Triiodobenzyl mesylate

Participants

Reaction Conditions

Reaction Steps

Mesyl chloride (0.6 ml, 8 mmol) was added dropwise to a suspension of 2,3,5-triiodobenzyl alcohol 1 (1.94 g, 4 mmol) in dry dichloromethane (30 ml) containing diisopropylethylamine (1.4 ml, 8 mmol) at 0° C. under dry nitrogen gas flow. The reaction mixture was stirred 1 h15 at 0° C., then cold H2O (40 ml) was added. The resulting aqueous phase was extracted with dichloromethane (10 ml). The combined organic extracts were washed with H2O (8 ml) then dried (Na2SO4), filtered and concentrated. The pale yellow solid was also washed with cold methanol (35 ml). 1.894 g of 2,3,5-triiodobenzyl mesylate in the form of a white clean solid was obtained in 84% yield.

Provenance & Evidence