9.1 Naming Alkynes

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Main Functional Group 1. Identify longest continuous carbon chain that includes the alkyne.
2. Number to give the alkyne the lowest possible number.
3. Use -yne suffix at the end of the parent chain and appropriate chain locator.
If a molecule is both an alkene and an alkyne, whichever can be given the lower number gets the priority; the alkene ‘wins’ if there is a tie.

Provide the IUPAC name for the following:

alkyne 01
alkyne 02
alkyne 03