Abstract
AbstractRu(II)‐catalyzed and solvent‐switched [3+2]‐spiroannulation and [4+n] (n=1, 2, 3) annulations of 2‐aryl quinazolinone or 2‐aryl‐2,3‐dihydrophthalazine‐1,4‐diones with ynones or alkynyl alcohol or 1,3‐diynes under mild reaction conditions have been analyzed. These reactions take place in the presence of the appropriate solvent and features a redox‐neutral pathway. Ynone serves as an ‘atypical one‐carbon unit’ in [4+1] annulation and generates a tetrasubstituted carbon center bearing diverse heterocycles through [3+2] and [4+1] annulation strategies. Post transformations of the synthesized spiro‐products augments the potential of the developed methodology.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have