Editing Group transfer reaction (section)

=== [[Ene reaction|Ene Reaction]] ===
The ene reaction is one of the most common forms of group transfer reactions, where an allylic hydrogen is transferred to an alkene in a cyclic concerted mechanism. The ene reaction is further divided into subgroups including intramolecular ene, metallo-ene, and carbonyl ene reactions.<ref>{{Cite journal |last1=Mikami |first1=Koichi |last2=Shimizu |first2=Masaki |date=July 1992 |title=Asymmetric ene reactions in organic synthesis |url=https://pubs.acs.org/doi/abs/10.1021/cr00013a014 |journal=Chemical Reviews |language=en |volume=92 |issue=5 |pages=1021–1050 |doi=10.1021/cr00013a014 |issn=0009-2665|url-access=subscription }}</ref> The reverse reaction, commonly called the retro-ene reaction, can occur under high temperatures.<ref name=":0" />
[[File:Figure1newene.png|none|thumb|356x356px|''Figure 2''. Generic ene reaction.]]