Group transfer reaction

The ene reaction

In organic chemistry, a group transfer reaction is a pericyclic process where one or more groups of atoms is transferred from one molecule to another. They can sometimes be difficult to identify when separate reactant molecules combine into a single product molecule (like in the ene reaction). Unlike other pericyclic reaction classes, group transfer reactions do not have a specific conversion of pi bonds into sigma bonds or vice versa, and tend to be less frequently encountered. Like all pericyclic reactions, they must obey the Woodward–Hoffmann rules.^[1]

The best known group transfer reaction is the ene reaction in which an allylic hydrogen is transferred to an alkene.

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