2-BROMO-3-METHOXYPHENOL

33 mL (52.8 mMol) n-butyllithium (1.6 M in hexane)were added dropwise to a solution 10 gm (48.1 mMol) tetrahydropyran-2-yl 3-methoxyphenyl ether in 100 mL tetrahydrofuran over 15 minutes. After stirring for 2.5 hours at room temperature, the reaction mixture was cooled to 0° C. and then 4.6 mL (53.2 mMol) 1, 2-dibromoethane were added dropwise. The reaction mixture was then allowed to stir at room temperature for about 14 hours. The reaction mixture was then diluted with 50 mL 1 N hydrochloric acid and was stirred for 1 hour. The aqueous phase was extracted with three 100 mL portions of diethyl ether. The organic phases were combined and extracted well with 5 N sodium hydroxide. These basic aqueous extracts were combined and cooled in an ice/water bath. The pH of this aqueous solution was adjusted to about 1 with 5 N hydrochloric acid and then extracted with three 100 mL portions of diethyl ether. These ether extracts were combined and washed with saturated aqueous sodium chloride, dried over magnesium sulfate and concentrated under reduced pressure. The resulting residue was subjected to silica gel chromatography, eluting with a gradient of hexane containing from 0 to 10percent ethyl acetate. Fractions containing the desired compound were combined and concentrated under reduced pressure to provide 2.91 gm (30percent) of a residue which crystallized upon standing.EA: Calculated for C33 mL (52.8 mMol) n-butyllithium (1.6 M in hexane) were added dropwise to a solution 10 gm (48.1 mMol) tetrahydropyran-2-yl 3-methoxyphenyl ether in 100 mL tetrahydrofuran over 15 minutes. After stirring for 2.5 hours at room temperature, the reaction mixture was cooled to 0°C and then 4.6 mL (53.2 mMol) 1, 2-dibromoethane were added dropwise. The reaction mixture was then allowed to stir at room temperature for about 14 hours. The reaction mixture was then diluted with 50 mL 1 N hydrochloric acid and was stirred for 1 hour. The aqueous phase was extracted with three 100 mL portions of diethyl ether. The organic phases were combined and extracted well with 5 N sodium hydroxide. These basic aqueous extracts were combined and cooled in an ice/water bath. The pH of this aqueous solution was adjusted to about 1 with 5 N hydrochloric acid and then extracted with three 100 mL portions of diethyl ether. These ether extracts were combined and washed with saturated aqueous sodium chloride, dried over magnesium sulfate and concentrated under reduced pressure. The resulting residue was subjected to silica gel chromatography, eluting with a gradient of hexane containing from 0 to 10percent ethyl acetate. Fractions containing the desired compound were combined and concentrated under reduced pressure to provide 2.91 gm (30percent) of a residue which crystallized upon standing. EA: Calculated for C7H7BrO2: Theory: C, 41.41; H, 3.48. Found: C, 41.81; H, 3.46.A solution of 2-bromo-1-methoxy-3-(methoxymethoxy)benzene (2.02 g, 8.16 mmol) in 5-10% hydrogen chloride in methanol (3.0 mL) was stirred for 0.5 h at 0 C and then for 4 h at room temperature. The reaction mixture was quenched with water and extracted with ethyl acetate. The combined extract was dried over anhydrous sodium acetate and filtered. Concentration in vacuo gave a residue.

Molecular Weight:203.03
XLogP3:2.2
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:201.96294
Monoisotopic Mass:201.96294
Topological Polar Surface Area:29.5
Heavy Atom Count:10
Complexity:108
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes