Methods for the preparation of benzophenone derivatives

Details Methods for the preparation of benzophenone derivatives Methods for the preparation of benzophenone derivatives

C - Chemistry, Metallurgy

07

C

C07C 49/84 (2006.01) C07C 45/46 (2006.01) C07C 45/67 (2006.01) C07C 45/81 (2006.01) C07C 201/12 (2006.01) C07C 201/14 (2006.01) C07C 205/45 (2006.01)

Patent

CA 2227131

The present invention relates to a process for the manufacture of benzophenone derivatives and is based on the separation of compounds of formula (I), (see formula I) from corresponding isomeric compounds of formula (II), (see formula II) by selective crystallization of corresponding salts of compounds of formula (I).

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