31g of sodium hydroxide (3.28equiv.: 0.781mol)-water 60ml solution under ice-cooling, 50g bromohydrin form obtained in Example 6 (0.238mol) was added and the internal temperature was raised to 61 oC gas generated was collected outside the reactor, condensed in a trap cooled to -78 oC, 1,1,1-trifluoro-2 ,3-epoxypropane was obtained in 84% yield. This was analyzed by 1H-NMR, 19F-NMR. 19F-NMR: (acetone weight):-86.90ppm (3F, d) 1H-NMR: (acetone weight): 2.90ppm (1H, m) 2.96ppm (1H, d d), 3.40ppm (1H, m)
