It is a thermosetting phenol formaldehyde resin, formed from an elimination reaction of phenol with formaldehyde.
Ammonia can be split off in an elimination reaction to form enals and enones.
An addition reaction is the opposite of an elimination reaction.
An elimination reaction regenerates the carbene and releases the product 4.
In the presence of acid, hemiacetals can undergo an elimination reaction, losing the oxygen atom that once belonged to the parent aldehydes carbonyl group.
This generates an oxyallyl cation which undergoes an elimination reaction to lose a -hydrogen.
The presence of an acid facilitates the elimination reaction in the zwitterion by proton transfer which becomes much faster and no longer rate determining.
The carbanion proceeds in an elimination reaction to create the carboncarbon double bond.
