反应详情

3-Methoxymethoxyphenyl bromide was prepared by the reaction of 3-bromophenol and dimethoxymethane using the general procedure described in Synthesis, 1976, 244. Methoxyacetone (4.41 g) was added to a solution of 3-methoxymethoxyphenylmagnesium bromide [prepared from 3-methoxymethoxyphenyl bromide (10.85 g) and magnesium (1.2 g) in tetrahydrofuran (100 ml)]. The mixture was stirred at ambient temperature for 15 hours and then evaporated. The residue was partitioned between ethyl acetate and water. The organic layer was washed with a saturated aqueous sodium chloride solution, dried (MgSO4) and evaporated. The residue was purified by column chromatography using a 20:3 v/v mixture of methylene chloride and diethyl ether as eluent. There was thus obtained 2-hydroxy-2-(3-methoxymethoxyphenyl)-prop-1-yl methyl ether (7.87 g, 69%), as a colourless oil.

1. customdescribed in Synthesis, 1976, 244
2. customevaporated
3. customThe residue was partitioned between ethyl acetate and water
4. washThe organic layer was washed with a saturated aqueous sodium chloride solution
5. dry with materialdried (MgSO4)
6. customevaporated
7. customThe residue was purified by column chromatography
8. additiona 20:3 v/v mixture of methylene chloride and diethyl ether as eluent