Hydrocarbons
11.0 Alkynes
11.0 Alkynes
Nomenclature of alkynes:
In IUPAC system the compounds are named as alkynes in which the final – ane of the present alkane is replaced by the suffix – yne. The position of the triple bond is indicated by a number.
$$e.g.\,\,C{H_3}C \equiv CH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{(C{H_3})_2}CHC \equiv CH$$
Propyne 3 – methyl – 1 – butyne
When both double and triple bonds are present, hydrocarbon is named as alkenyne.
$$e.g.\,\,\,C{H_3}CH = CHC \equiv CH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,HC \equiv C\,\,C{H_2}CH = C{H_2}$$
3 – penten – 1 – yne 1 – penten – 4 – yne
