I want to get a help with project introducing for this thesis chapter. I have at

I want to get a help with project introducing for this thesis chapter. I have attached the published paper for the work. Simply i want a little background introduction and to explain the whole paper i have attached with the literature work under the introduction. chemical structures and figures are not needed. If you want to explain with structures, please use the same numbers that are given to the structures in the paper. Feel free to add anything you think is important.