The Synthesis Of Several Quinoxaline Derivatives And Study On Their Coordination With Transition Mental Complexes

Quinoxaline and derivatives are significant heteroacene which play a critical role of pesticide, medicine, dyestuff, materials and industry of fine chemicals.There are varieties method to synthesize, while the reaction between o-canbonyl compound and o-diamine compound is optimal choice. As one of heteroacene,quinoxaline and dirivatives attractivate a great number of scientists to pay attention because its excellent biological activity, versatile structure and good capacity of coordination. With the fast development of coordination chemistry, heteroacene like pyridine, imidizole, and pyrrole has already been apllied in the study of coordination chemistry. Complexes constructed by these coordination have excellent performance, and can be applied into vast field, for example, fluorescence, Biochemistry, catalysis, chemisorption, and matirials etc.In this paper, o-canbonyl compounds and o-diamine compounds are utilized to ring-closure reaction to generate a series of quinoxaline dirivatives and yield a new extended phenanthroline ligands with strong flourescence. Furthermore, we synthesized group VIB and VIIB metal carbonyl heteroacene complexes, Ru(Ⅱ) and Cu(II) complexes.The main research results and innovations of the thesis are given as following:Firstly, on the condition of CH3COOH,starting with o-canbonyl compounds and oo-diamine compounds, we synthesized a series of quinoxaline dirivatives,and their photochemical property is studied. Secondly, carbonyl compounds were synthesized by stage controlled method. On the water-free and oxygen-free condition, we put Me3N0 into use, carbonyl was delete from carbonyl compounds and futher reaction was acted.Further reaction focused on the addition of second ligand on the basis of the former reaction. And we also studied the photochemical property of the products.Finally, taking the new compound I as a bidentate ligand,3 Cu(II)and Ru(II) complexes were synthesized, which analogues to heteroleptic complexes approved to be DNA probes.Similarly, photochemical property of the products are characterized.The presence of these features raises the possibility of utilizing nitrogen-containing acenes as superexcellent candidates for electrochemistry, biochemistry and medical science.