Synthesis And Properties Of2,3-Pyrazine Heterocyclic Compounds

In order to make a further research of the sulfur bridge pyrazinephane and nitrogen bridge pyrazinephane, the author of this thesis will use the2,3-dimethylpyrazine as the raw material, through the chlorination reaction, to get the2,3-bis(chloromethyl) pyrazine and2,3-bis (brooethyl) pyrazine. Then2,3-bis (brooethyl) pyrazine is used to react with tosylamide monosodium salt, and in this way the (47) is synthesized for the first time. The author of the thesis also makes the chemical reaction between the2,3-bis(chloromethyl) pyrazine and sodium sulfide under the condition of high-dilution, to synthesize the (53), and the author of this thesis also test these compounds by means of1H NMR,13C NMR, IR, and X-Ray.We get the single crystal of (47) and (53) with the solvent evaporation method and the interface diffusion method. Besides, we can make a deeper research on this kind of compounds such as sulfur bridge pyrazinephane and nitrogen bridge pyrazinephane. However, it is a pity that in this process, we failed to get the corresponding cyclic pyrazinephane. Therefore, in order to make a great contribution to a deeper research on the compound of impure sulfurs and the compound of the impure nitrogen pyrazinephanes, we will make a further exploration of the synthesis research, structure research, spectroscopic property research as well as the property research of the coordinated compound formed by the coordination with the metal, and all these researches are concerned with the impure sulfurs and the compound of the impure nitrogen pyrazinephanes which are synthesized by using the2,3-dimethylpyrazine as the raw material. Furthermore, we will study and explore the application prospect of the (47) and (53).