The equilibrium of extraction on sodium hydroxide by l-octanol,hexanol and fluorintaed alcohol was studied in this paper.

In order to optimize synthesis process of 2,6-difluorobenzoic acid (DFBA), 2,6-difluorobenzonitrile is fluorization synthesized from 2,6-dichlorobenzonitrile (DCBN) and potassium fluoride with N,N-dimethylformamide (DMF) as a solvent over the polyether catalyst A, and then the intermediate 2,6-difluorobenzonitrile is hydrolyzed under the alkali conditions to get DFBA.

The paper made use of 3-methylpyridine as starting material through chloridization,fluorization and etc .

difluorobenzamide is synthesized from 2,6-dicholobenzomitrile and KF in presense of DMF,using compound catalysts,by fluorization and hydrolysis.

Difiuoroaniline was synthesised from l,3 dichlorobenzene as a starting material via nitration,fluorination and reduction,The suitable technological conditions were probed for each step of the reactions.

Preparation of trifluoroacetaldehyde and trifluoroacetic acid by trifluoroethanol catalytic oxidation;

Some trifluoethoxylpyridine ether derivatives were successfully synthesized by reacting 4-nitro-pyridine-N-oxide derivatives with trifluoroethanol in the presence of alkali.

Physical and chemical properties of trifluoroethanol were introduced.

Studies on synthesis of quaternary ammonium salt derivatives of haloperidol and their vasodilative activities;

Adsorptive Stripping Voltammetry of Haloperidol;

Comparative study of Xifengjingning soup and low dose of Haloperidol on Tourette syndrome;