unit (7) organic compounds

7.8 Naming Alkenes and AlkynesAlkenes and alkynes are named similar to the IUPAC rules used for naming alkanes.Guideline:• The parent name is the longest chain that has carbon-carbon multiple bond.• Number from the end closest to the multiple bond.• Names of alkenes end with “ene” and alkynes end with “yne”.CH 3 - CH = CH - CH 2 - CH 32-penteneCH 3 - C C - CH 2 - CH 2 - CH 3 2-hexyneCH 3CH 3CH 3 - CH - CH = CH - CH - CH 32,5-dimethyl-3-hexeneCH 2 - CH 3CH 3 - C C - CH - CH 2 - CH 2 -CH 34-ethyl-2-heptynecyclopenteneCH 33,6-dimethylcyclohexeneCH 37-13