Editing Allyl group (section)

{{Short description|1=Chemical group (–CH₂–CH=CH₂)}}
[[File:Allyl.svg|thumb|180px|right|Structure of the allyl group]]

In [[organic chemistry]], an '''allyl group''' is a [[substituent]] with the [[structural formula]] {{chem2|\sCH2\sHC\dCH2}}. It consists of a [[methylene bridge]] ({{chem2|\sCH2\s}}) attached to a [[vinyl group]] ({{chem2|\sCH\dCH2}}).<ref name=March /><ref name=boyd /> The name is derived from the scientific name for [[garlic]], {{lang|la|Allium sativum}}. In 1844, [[Theodor Wertheim]] isolated an allyl derivative from [[garlic oil]] and named it "{{lang|de|Schwefelallyl}}".<ref>{{Cite journal | doi = 10.1002/jlac.18440510302 | title = Untersuchung des Knoblauchöls | year = 1844 | author = Theodor Wertheim | journal = Annalen der Chemie und Pharmacie | volume = 51 | pages = 289–315 | issue = 3| url = https://zenodo.org/record/1426988 }}</ref><ref Name="Block">{{cite book|author=Eric Block|title=Garlic and Other Alliums: The Lore and the Science|url=https://books.google.com/books?id=6AB89RHV9ucC|publisher=Royal Society of Chemistry|year=2010|isbn=978-0-85404-190-9}}</ref> The term allyl applies to many compounds related to {{chem2|H2C\dCH\sCH2}}, some of which are of practical or of everyday importance, for example, [[allyl chloride]].

'''Allylation''' is any [[chemical reaction]] that adds an allyl group to a [[Substrate (chemistry)|substrate]].<ref name=March />