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0 °C

A mixture of 2-methoxyphenethyl alcohol (500 mg) and carbon tetrabromide (1.53 g) in anhydrous dichloromethane (10 mL) was stirred at 0° C. under a nitrogen atmosphere. After adding triphenylphosphine (1.03 g) portionwise, the reaction mixture was stirred for an hour under the same condition. The reaction mixture was evaporated in vacuo and the residue was subjected to a silica gel column chromatography eluting with n-hexane only and then a mixture of n-hexane and ethyl acetate (40:1 to 20:1) to give 2-methoxyphenethyl bromide (661 mg) as an oil.

1. stirringthe reaction mixture was stirred for an hour under the same condition
2. customThe reaction mixture was evaporated in vacuo
3. washeluting with n-hexane only
4. additiona mixture of n-hexane and ethyl acetate (40:1 to 20:1)