|The alkyne series is very similar to the alkane and alkene
series. They all have at least one triple bond. Please note the fact
that a single letter change results in a dramatic change in the
structure of a compound.
Ethyne C2H2 Propyne C3H4
|And the pattern continues just as it did for the alkanes
and alkenes. The general formula of an alkyne is CnH2n-2.
bond prevents rotation but it also prevents the formation if cis and
structures in the parent chain.
|In the event a parent chain has both an alkyne and an
alkene the alkyne
is more important.
|8 carbons long therefore an "oct". Has both alkene and an
The alkyne is the most important therefore number so that it has the
possible number. Therefore we now have "3-yne" and an alkene at 5 and
7. Therefore the full name would be oct-5,7-diene-3-yne.
|All the other rules previously learned still apply.|