3-Hydroxybenzaldehyde → 3-(Methoxymethoxy)benzaldehyde
Reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][CH:9]=1)[CH:5]=[O:6].Cl[CH2:11][O:12][CH3:13].C(N(C(C)C)CC)(C)C>>[CH3:11][O:12][CH2:13][O:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][CH:9]=1)[CH:5]=[O:6]Participants
4
Procedure
A solution of 3-hydroxybenzaldehyde (20 g), chloromethylmethyl ether (25 ml) and diisopropylethylamine (114 ml) intetrahydrofuran (300 ml) was stirred at room temperature overnight. To the reaction mixture was added ice water and was extracted with ethyl acetate. The extract was washed with a saturated aqueous solution of sodium bicarbonate, water and a saturated aqueous solution of sodium chloride, successively, dried over anhydrous magnesium sulfate and concentrated. The residue was purified by column chromatography on silica gel (hexane:ethyl acetate=25:1) to give the title compound (23 g) having the following physical data.
Workup
- extractionwas extracted with ethyl acetate
- washThe extract was washed with a saturated aqueous solution of sodium bicarbonate, water
- dry with materiala saturated aqueous solution of sodium chloride, successively, dried over anhydrous magnesium sulfate
- concentrationconcentrated
- customThe residue was purified by column chromatography on silica gel (hexane:ethyl acetate=25:1)
Sources & evidence
- ORD record
- ord-3968d46302904672972c5a4e6b9b43fb
- Source dataset
- uspto-grants-2003_01
- Patent number
- US06506757B1
Reaction notes
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