反应详情

温度

0 °C

Sodium hydride (60% dispersion in mineral oil; 30 mg, 0.76 mmol) was added to a DMF (2 mL) solution of 5 (225 mg, 0.64 mmol), cooled in an ice bath. After stirring at 0° C. for 1 h, chloromethyl methyl ether (100 μL, 1.33 mmol) and triethylamine (0.2 mL) were added. The reaction mixture was stirred at room temperature overnight and evaporated under reduced pressure. The residue was dissolved in dichloromethane and washed with pH 7 buffer solution (10 mL). The organic phase was dried with anhydrous Na2SO4, filtered, and evaporated to give the crude product. The crude product was purified by flash chromatography on silica gel (CH2Cl2), to give 2-(4-iodophenyl)-6-(methoxymethyl)-1,3-benzothiazole (6) (237 mg, 93.7%) as a white solid.

1. temperaturecooled in an ice bath
2. stirringThe reaction mixture was stirred at room temperature overnight
3. customevaporated under reduced pressure
4. dissolutionThe residue was dissolved in dichloromethane
5. washwashed with pH 7 buffer solution (10 mL)
6. dry with materialThe organic phase was dried with anhydrous Na2SO4
7. filtrationfiltered
8. customevaporated
9. customto give the crude product
10. customThe crude product was purified by flash chromatography on silica gel (CH2Cl2)