Naming Alkenes

The number of structural isomers increases rapidly as the number of carbons increases because, besides variations in chain length and branching, variations occur in the position of the double bond. IUPAC nomenclature is extremely useful in differentiating among these many alkene compounds.
The IUPAC rules for naming alkenes are similar to those used for the alkanes, with a few additions to indicate the presence and location of double bonds.
Step 1. Name the longest chain that contains the double bond. The characteristic name
ending is -ene.
Step 2. Number the longest chain of carbon atoms so that the carbon atoms joined by
the double bond have numbers as low as possible.
Step 3. Locate the double bond by the lower-numbered carbon atom bound by the
double bond.
Step 4. Locate and name attached groups.
Step 5. Combine the names for the attached groups and the longest chain into the name.

[FashanuOluwadamisi]

where is the iso coming from in the last question?

[sarahm]

thank you so much, this video is very helpful and beneficial to me. I can now understand alkenes!

[Naomi-ztlk]

wow very helpful the best and only video that makes sense thank you!!!!

[korean_hangul]

We have same explanation in the coaching
But this explanation is the best one

[CedricRamus]

Thanks this video really help me with my assignment.❤

[gassan_-]

Best one to explain it it’s clear after watching the vd