Arylamine diazotization, thermal decomposition, halogen exchange for aromatic fluoride preparation, four kinds of commonly used phase transfer catalysts crown ether, quaternary ammonium salt, tetraphenyl phosphonium salt, polyethylene glycol and their applications in fluorination reaction are introduced.

A facile preparation of N phenyltetrafluorophthalimide starting from tetrachlorophthalic anhydride via imidation and fluorination reactions was described.

The application of phase transfer catalysis in fluorination of halo-aromatic compounds,mechanism,variety and reaction condition of fluorination are reviewed in this article.

Fluorobenzonitrile(4 FBN) was prepared by fluorination of 4 chlorobenzonitrile(4 CBN) with potassium fluoride using 1,3 dimethyl 2 imidazolidone (DMI) as a non polar solvent.

Several applications of triethylamine tris(hydrofluoride) to organic synthesis are summarized according to reaction type, especially for nucleophilic substitution, the ring-opening fluorination reaction of epoxide, electrophilic addition, desilylation reaction and so on.