Patent Number: 6,166,242

Title: Method for producing compounds containing fluorine, in particular fluorobenzaldhydes and fluorobenzonitriles

Abstract: The invention concerns a method for producing compound containing fluorine, particularly fluorobenzaldehyde and fluorobenzonitrle, by a halogen exchange reaction with a compound of the formula I as fluorinating agent, defined in the specification, and a quatenary aminophosphonium compound of the formula III as catalyst, as defined in the specification, and in a solvent consisting of a nitro and/or sulfoxy substituted organic compound of the formula IVa and/or IVb, as defined in the specification.

Inventors: Appel; Wolfgang (Kelkheim, DE), Pasenok; Sergej (Kelkheim, DE), Wessel; Thomas (Frankfurt, DE)

Assignee: Aventis Research & Technologies GmbH & Co KG

International Classification: C07B 39/00 (20060101); C07C 253/00 (20060101); C07C 253/30 (20060101); C07C 45/63 (20060101); C07C 45/00 (20060101); C07C 255/00 (); C07C 045/00 ()

Expiration Date: 12/26/2017