The group CH 2 =CHCH 2 - is called allyl. Some compounds that derive from the allyl group are:
The term allylic position is also used to designate the neighboring position of a double bond. Hydrogens located in that position are called allylic hydrogens.
Carbons located in the allylic position are called allylic (blue) carbons.
Carbocations, carbanions and radicals formed in allylic positions are stabilized by delocalizing the charge by resonance.
