The literature reaction conditions are adjusted to be comparable to the conditions used in the continuous reactor. Thus, the same amounts of substance of magnesium and halide (0.07 mol each) are used. With this, the high excess of magnesium is omitted while still maintaining a halide concentration of 0.7 mol/L in THF. 0.07 mol of magnesium turnings (1.7017 g) are introduced into the flask regardless of the magnesium turning size. In addition, 0.42 mL of (bromomethyl)benzene and 26 mL of THF are added. After the incubation period of 10 minutes, the remaining (bromomethyl)benzene in THF (7.89 mL in 65.49 mL) is added.