The catalytic hydrogenation technology of o-chloronitrobenzene(o-CNB) in liquid phase is an attractive and elegant routine for the production of o-chloroaniline(o-CAN), owing to the advantages such as high product yield, good product quality and much less pollution to environment.

Determination of o-nitrochlorobenzene by Polarography of β-cyclodextrin- o-nitrochlorobenzene Inclusion Complexation;

1-Hydroxybenzotriazole(Ⅰ) was prepared from o-nitrochlorobenzene.

This article provides a new process for the preparation of 3,3'-dichlorobenzidine by reduction of o-nitrochlorobenzene with formaldehyde and zinc power,and subsequent so-called benzidine rearrangement catalyzed by hydrochloric acid and purification.

Dichlorobenzidine(Ⅳ) was synthesized from o nitrochlorobenzene(Ⅰ) by three step reactions.

The results indicate that the o alkylation of o nitrochlorobenzene in a constant concentration of polyethylene glycol obeys the pseudo first order kinetically.

Taking the reaction of O nitrochlorobenzene O methylation by phase transfer catalyst as an example,the mechanism of phase transfer catalysis and kinetics equation are discussed under certain conditions.

2,2′-Dichlorohydrazobenzene(DHB) was prepared by catalytic hydrogenation of 2-nitrochlorobenzene using Pt/C as a catalyst in alkaline medium.

o-Nitrophenetole was prepared using phase transfer catalyst by reation of 2-nitrochlorobenzene and ethanol in the presence of sodium hydroxide.

Nitrodiphenylamine is synthesiized by direct condensing method,adsopting aniline and 2-nitrochlorobenzene as feeds,PEG as phase transfer catalyst.

Ni/TiO_2 catalyst was prepared by an impregnation method and applied in the hydrogenation of o-chloronitrobenzene to 2,2′-dichlorohydrazobenzene.

Ni/TiO_2catalyst was prepared by impregnation method and applied in the hydrogenation of o-chloronitrobenzene to 2,2 -dichlorohydrazobenzene.