Patent · US Expired

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

US6166242A · kind A · utility

2Cited by

1References

30Claims

0Family size

Assignee

Aventis Research & Technologies GmbH & Co. · DE

Inventors

Wolfgang Appel · Kelkheim, DE
Sergej Pasenok · Kelkheim, DE
Thomas Wessel · Frankfurt, DE

Key dates

Filing date	Feb 28, 2000
Grant date	Dec 26, 2000
Priority date	—
Expiry date	Feb 28, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/63
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.