Other Notes Wittig reagent used to prepare alkylidene-cyclopropanes7,8,9 Application Used for electrolytic polarization of Zn1Studied for potential antitumor activity2Reactant for synthesis of: • Keto halides for sequential azidation and intramolecular Schmidt reactions3 • Cycloporpylidenemethylarylethynynes4 • Dipeptides containing azabicyclo[3.1.0]hexane5Reactant for hydroalkynylation6