Question

When during a rearrangement, the migrating group moves along with the pair of electrons to an electron deficient center, it is known as ___________ rearrangement
(a) aniontropic
(b) cationtropic
(c) sigmatropic
(d) electrophilic

Answer 1

When during a rearrangement, the migrating group moves along with the pair of electrons to an electron deficient center, it is known as ___________ rearrangement

(a) aniontropic

Answer 2

Cationotrophic or Electrophilic rearrangement.

Explanation:

• An electrophilic molecular rearrangement is also known as cationotropic rearrangement because, during this rearrangement, the migrating group moves along with the pair of electrons to an electron-deficient center.

• An electrophilic molecular rearrangement is one in which the migrating or movement radical leaves an electron pair from the departure of an atom(origin of migration) and becomes attached through an electron pair on the atom of destiny(migration terminus).