Process for preparing .alpha. -haloacetophenone derivative

Details Process for preparing .alpha. -haloacetophenone derivative Process for preparing .alpha. -haloacetophenone derivative

C - Chemistry, Metallurgy

07

C

C07C 323/22 (2006.01) C07C 315/02 (2006.01) C07C 317/24 (2006.01) C07C 319/20 (2006.01)

Patent

CA 2200930

The present invention provides processes for preparing .alpha.-halo(methylthio)acetophenone and .alpha.- halo(methylsulfonyl)acetophenone in an industrially simple and economically advantageous manner. In the invention, methylthioacetophenone is halogenated with a halogenating agent in the presence of an alcohol, giving .alpha.-halo(methyl- thio)acetophenone. Then the compound is oxidized with an oxidizing agent, giving .alpha.-halo(methylsulfonyl)acetophenone.

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