Alkenes And Alkynes

Alkenes

Alkenes can be acquired by the transformation of several functional groups like the reduction of the alkynes, elimination of alkyl halides, or the elimination of alcohols.

Alkenes can as well be synthesized from vicinal dibromides, i.e. molecules that have bromine atoms on neighboring carbon atoms. This reaction is known as a debromination reaction and is performed by treating the dibromide along with sodium iodide in acetone or with zinc dust in acetic acid.

Alkynes

Alkynes  can  be  synthesized  from  alkenes  by  a  two-step  process  that includes the electrophilic addition of bromine to create a vicinal dibromide after that dehydrohalogenation with strong base.