Process for the preparation of chiral intermediates useful...

Details Process for the preparation of chiral intermediates useful... Process for the preparation of chiral intermediates useful...

C - Chemistry, Metallurgy

07

D

C07D 407/04 (2006.01) C07D 405/06 (2006.01)

Patent

CA 2192186

Described is a process for preparing chiral compounds of formula (II), wherein X1 and X2 are independently F or Cl, and Y is Cl, Br or I, comprising reacting a tool of formula (VIII), wherein X1 and X2 are as defined above, with acetone in the presence of a catalyst, then with a halogen selected from Cl2 Br2 or I2, or N-bromosuccinimide or N- iodosuccinimide.

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