Methanol → Methyl 3-bromo-5-iodobenzoate

Participants

Reaction Steps

To a solution of 3-bromo-5-iodo-benzoic acid (D7) (14.6 g, 44.7 mmol, 1 equiv) in MeOH (150 ml) at 0° C. was added SOCl2 (3.9 ml, 53.6 mmol, 1.2 equiv). The resulting solution was refluxed for 2 h, cooled to room temperature and concentrated in vacuo. The residue was diluted with AcOEt and washed twice with 2N aqueous NaOH solution then brine, dried over MgSO4 and concentrated in vacuo to give 3-bromo-5-iodo-benzoic acid methyl ester (D8a) (14.8 g, 97%) as a pale brown solid.

Provenance & Evidence