The reaction of a domino aryne precursor with sulfonamides efficiently afforded both 1,3-diaminobenzenes and trisubstituted 1,3-diaminobenzenes by simply varying the reaction conditions. Mechanistic study supports the sequential formation of two transient aryne intermediates involved in the reaction.

Using solvents extraction separation system of self-designed make superior coal tar pitches for carbon materials. In proper order choose petroleum ether, methanol and carbon disulfide to cut coal tar into several fractions under different condition. The first solvent can take light components out from coal tar. Then drag out those chemical that contain heteroatom such as nitrogen, sulfide applying the second solvent. The last is to dig out higher molecular weight polycyclic aromatic hydrocarbon from coal tar deeply. Heavy fractions are vacuumed to drive out any solvents. The superior chirpy coal tar pitches for carbon materials acquired.

As a model reaction for coal liquefaction, the hydrocraking of di(1-naphthyl)methane (DNM) was investigated using acid solid catalyst (ASC) under different reaction conditions. The results show that acid solid catalyst selectively catalyzes DNM hydrocraking to give 1-methylnaphthalene and naphthalene, without hydrogenation product. The rate of DNM hydrocraking strongly depended on reaction temperature, reaction time and the catalyst feed, whereas effect of hydrogen pressure was not serious. The effects of acid solid catalyst is to make Car-Calk bond cleavage.

Rice husk bio-oil composition is very complex, Presented in this study for water-insoluble bio-oil. They were fatherly extracted by organic solvent, such as petroleum ether (PE), carbon disulfide(CS2), Tetrachloride(CCl4) and benzene by step, the extract from which was analysised by GC/MS, This paper focuses on one of the benzene extract.

A new catalyst with two active constituents interacting with activated carbon was prepared. As a model reaction for coal liquefaction, the hydrocracking of di(1-naphthyl)methane (DNM) was investigated under different reaction conditions over the catalyst. The results show that the catalyst converts DNM hydrocraking into 1-methylnaphthalene and naphthalene with high selectively, without any hydrogenation product. Kinetic analysis indicates that DNM hydrocracking in the temperature range of 170-300 °C could be considered as a first order reaction. The activation energy E and pre-exponential factor A for DNM hydrocracking for different reaction times were calculated.