Clothianidin is a neonicotinoid. Neonicotinoids are a class of insecticides that are chemically similar to nicotine, which has been used as a pesticide since the late 1700s.
http://www.acs.org/content/acs/en/molecule-of-the-week/archive/clothianidin.html
Here is a link regarding its synthesis:
http://w.sumitomo-chem.co.jp/english/rd/report/theses/docs/20060202_h6t.pdf
Another interesting molecule, Galanthamine:
ReplyDeletehttp://www.chm.bris.ac.uk/motm/galanthamine/galanthaminejm.htm