Addition to Polar Multiple Bonds Such as Carbonyl or Cyano

INTRAMOLECULAR ADDITION TO POLAR MULTIPLE BONDS SUCH AS CARBONYL OR CYANO 

Free radical addition to polar bonds has not been extensively studied probably because of the interesting reactivity of the polar bonds toward nucleophilic reagents, so that study of free radical addition may appear of minor interest. Furthermore, the more familiar process in free radical addition reaction to polar bonds is the well-known )3-scission process, i.e., the reverse reaction. 

---