Elimination (of Radicals) Definition:
n radical reaction mechanisms, a step in which a bond forms between the alpha (a) and beta (b) positions. As a result, a single bond at the b position is cleaved, causing the compound to fragment into two pieces.
Elimination (of radicals) Explained
A nucleophile pair of electrons (either from another bond or a lone pair) heads into a new Pi- bond as a leaving group departs. This process is called B–elimination because of bond B to the nucleophilic pair of electrons breaks. Transition metal complexes can participate in their own version of B–elimination, and metal alkyl complexes famously do so. The leaving group is not lost completely in organometallic B-eliminations. As the metal donates electrons, it receives electrons from the departing leaving group. When the reaction is complete, the metal has picked up a new Pi-bound ligand and exchanged one X-type ligand for another.