Methyl iodide → 4-Bromo-2-butyl-6-fluoro-5-methoxy-1-indanone

関与物質

反応手順

A mixture of 4-bromo-2-butyl-6-fluoro-5-hydroxy-1-indanone (2.17 g, 7.23 mmol), N,N-dimethylformamide (14.5 mL), methyl iodide (0.675 mL, 10.84 mmol), and sodium bicarbonate (1.50 g, 18.1 mmol) was stirred at room temperature for 17 hours. The solvent was evaporated under vacuum. The residue in EtOAc (150 mL) was washed with water (5×100 mL) and brine (50 mL), dried over MgSO4, filtered, and evaporated under vacuum to an oil (2.29 g). The crude product was dissolved in CH2CL2 (5 mL) and the solution filtered through a pad of EM silica gel 60 (20 mL) using an additional 60 mL of CH2Cl2 to elute the silica gel. The CH2Cl2 filtrate was evaporated under vacuum to afford 4-bromo-2-butyl-6-fluoro-5-methoxy-1-indanone (1.86 g) as a pink oil.

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