Week 2 Introduction to Molecular Rearrangement

In chemistry a rearrangement is a chemical reaction in which the carbon skeleton of a molecule is rearranged to give a structural isomer of the original molecule. A rearrangement reaction may involve several steps, but the key feature defining it as a rearrangement is that a bond shifts from one site of attachment to another. Rearrangements are divided into intramolecular and intermolecular processes. In intramolecular process, the group that migrates is not completely detached from the
system in which rearrangement is taking place. In contrast, in intermolecular process, the migrating group is first detached and later re-attached at another site.