Resolution of racemic epoxides on g.l.c. columns containing optically active lanthanoid complexes

Racemic epoxypropane and 1,2-epoxybutane are resolved on a 2 m g.l.c. column containing the lanthanoid complex (1, R = CF3. M = Eu or Pr) in the stationary phase; (S)-epoxypropane is eluted more slowly than the (R)-isomer.