Start with 10 g of methylanisole instead. 1-(Bromomethyl)-2-methoxybenzene. A st

Question

Start with 10 g of methylanisole instead. 1-(Bromomethyl)-2-methoxybenzene. A stirred solution of 2-methyianisole (6 g, 49.7 mmol) and NBS (8.8 & 49.7 mmol) in benzene (125 mL, 0.4 M) was refluxed for 4 h with irradiation by a 250 WIR lamp and a 250 W white light lamp at a close distance. After being cooled to rt, the reaction crude was diluted with hexanes, filtered through a pad of" Celite, and concentrated in vacuo. To the crude was again added hexane followed by filtering through a pad of Celite. The filtrate was concentrated, and the resulting 1 - (bromomethyl)-2-methoxybenzene (10 y, 49.7 mmol) was used directly for the next step.

Explanation / Answer

Density of 2-methylanisole: 0.985 g/mL

Molar mass of 2-methylanisole: 122.16 g/mol

Volume = Mass/density = 6 g/0.985 g mL-1 = 6.09 mL

Equivalent: Number of mol of 2-methylanisole/ Number of mol of NBS = 49.7/49.7 = 1

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