反应详情

Repetition of the procedure described in Example 2 but using 1.00 g (4.23 mmol) of 10-bromodecanol and 0.5287 ml (4.23 mmol) of DAST in 50 mL methylene chloride affords the crude of 10-bromo-1-fluoro-decane. Purification by flash chromatography gives the 10-bromo-1-fluoro-decane (826 mg 3 82%) as a clear colorless liquid: Rf=0.73 hexane/ethyl acetate (7:3, v/v); IR (film) δ2850-3000 (alkane CH); and 1H-NMR (CDCl3) δ1.25-2.95 (m, 16H), 3.36 (t, J=6 Hz, 2H), 4.40 (dt, J=48 Hz, 2H).