Nomenclature alkynes

Alkyne nomenclature follows the general rules for hydrocarbons discussed in Sections 3.4 and 6.3. The suffix -yne is used, and the position of the triple bond is indicated by giving the number of the first alkyne carbon in the... 

The simplest alkyne, HC = CH, named in the lUPAC system as ethyne, is more often called acetylene, its common name. The two-carbon alkyl group derived from acetylene is called an ethynyl group (HC=C-). Examples of alkyne nomenclature are shown in Figure 11.1. 

Alkyne nomenclature is almost the same as alkene nomenclature. The only difference is that the -ene suffix of the corresponding alkene is replaced with -yne. A complete list of rules follows. 

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