Succinimide → 4-Bromo-2-(bromomethyl)-1-fluorobenzene

Temperature

79 °C

5-bromo-2-fluorotoluene (5.00 g, 26.5 mmol), N-bromosuccinimide (5.18 g, 29.1 mmol), benzyl peroxide (0.205 g, 0.850 mmol) and carbon tetrachloride (50 mL) were loaded to a r.b. flask and set to reflux (79° C.) for 2 h. Once cooled the succinimide was filtered off and carbon tetrachloride removed via a dry ice-acetone cooled rotary evaporator. The residues were dissolved in dichloromethane (100 mL) and washed with distilled H2O (50 mL×3) and brine (50 mL). Dried over MgSO4 and solvent removed in vacuo to yield the title compound as a colourless liquid yellow (6.80 g, 96%),

1. customflask and set
2. filtrationwas filtered off
3. customcarbon tetrachloride removed via a dry ice-acetone cooled rotary evaporator
4. dissolutionThe residues were dissolved in dichloromethane (100 mL)
5. washwashed with distilled H2O (50 mL×3) and brine (50 mL)
6. dry with materialDried over MgSO4 and solvent
7. customremoved in vacuo

ORD record

ord-d7b53e5c5481468b81cd6c086a26d8e8

Source dataset

uspto-grants-2011_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08022224B2