00:01
Question 9 .2 asks us to name the following hydrocarbons, which can be found in sunflowers.
00:08
So first begin by counting the carbons in the chain in part a.
00:13
You will find that there are 13.
00:16
So we know we will use prefix, trideck, or our name.
00:22
We are told that all the double bonds in this compound are in trans or opposite, which is intagin, which is e.
00:30
So find all the double bonds.
00:35
And note which ones have a cis and trans orientation because the first carbon has two hydrogens on it, and this will not have a cis or trans orientation.
00:45
So you'll find that there is a double bond on carbon 1, 3, 5, and 11, and only 3, and 11 have an orientation, which will be an opposite.
00:57
So we have 3p 5 e and 11e for our orientation and these bonds are on carbon 1 3 5 and 11.
01:16
Now let's find the triple bonds.
01:19
When you're counting, making sure you start on the right, you will find that there are triple bonds on carbon 7 and 9.
01:30
Now we need to put all these names together.
01:34
You start with the orientation.
01:35
That's where our 3e, 5e, and 11e come into play.
01:45
And then we list all the carbons that start with a double bond...