Thionyl Chloride → 4-(Chloromethyl)-1-cyclopentyl-2-(trifluoromethyl)benzene

Temperature

50 °C

To (4-cyclopentyl-3-(trifluoromethyl)phenyl)methanol (1.21 g, 4.95 mmol) was added thionyl chloride (5.5 mL, 74.2 mmol). The mixture was heated at 50° C. for 2 h before it was allowed to cool to room temperature and stirred at room temperature overnight. The mixture was poured into an ice and stirred for 5 min before it was extracted with dichloromethane. The organic extract was washed with saturated aqueous sodium bicarbonate solution, dried over anhydrous sodium sulfate and concentrated under reduced pressure to give the title compound as an oil (1.16 g). 1H NMR (400 MHz, CDCl3) δ ppm 1.55-1.63 (m, 2H), 1.69-1.77 (m, 2H), 1.82-1.90 (m, 2H), 2.05-2.13 (m, 2H), 3.37 (quintet, J=8.59 Hz, 1H), 4.58 (s, 2H), 7.46 (d, J=8.00 Hz, 1H), 7.52 (d, J=8.00 Hz, 1H), 7.61 (d, J=1.52 Hz, 1H).

1. temperatureto cool to room temperature
2. stirringstirred for 5 min before it
3. extractionwas extracted with dichloromethane
4. extractionThe organic extract
5. washwas washed with saturated aqueous sodium bicarbonate solution
6. dry with materialdried over anhydrous sodium sulfate
7. concentrationconcentrated under reduced pressure

ORD record

ord-fec142c99a554a1f9e28ff6e0753443c

Source dataset

uspto-grants-2013_11

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08580841B2