1-Bromopentane → 1,2-Difluoro-3-(4-pentyloxybutoxy)benzene

Beteiligte Stoffe

Reaktionsschritte

Sodium hydride (1 equi.) was added to the solution of 4-(2,3-difluorophenoxy)-butan-1-ol (22), (1 equi.) and 1-bromopentane (1 equi.) in DMF (1 mL/mmole) and the reaction mixture was stirred at room temperature for 12 h,. quenched with water, extracted with ethyl acetate:hexane (1:1), washed with brine, dried over MgSO4, and concentrated in vacuo. Purification by chromatography on silica gel (5% EtOAc/hexanes) and recrystallization from acetonitrile gave 1,2-difluoro-3-(4-pentyloxybutoxy)-benzene (24), as a white solid (84%).

Herkunft & Nachweise