[jacksonpeebles]

Can anyone please kindly help me on how to go about naming this molecule (step-by-step, please - if I just wanted the name I could probably Google the condensed structure!)?



So far, I know that the longest chain is octane and that we have a 3-methyl branch and some sort of branching on 4 and 5, I know these are alphabetized, but I do not know how to name these branches (would the two branches on 5 become 5-diethyl?  I have no clue for the 4 branch).

[Kate]

You have to give the substituents the smallest number possible.

First you have to identify the longest chain. And then you start numbering the carbons of that chain.

You have 1 methyl group on C3, on C4 you have a (1-methylpropyl) group and on C5 you have an isopropyl group.

That weird group on C4, since it's has a branch, which is a methyl group, you have to give its position in relation to the propyl group. That position is 1.

I think IUPAC accepts the isopropyl name; propyl because there's 3 carbons and iso because the group is symmetrical.

The final name has to be in alphabetical order.

[discodermolide]

Can anyone please kindly help me on how to go about naming this molecule (step-by-step, please - if I just wanted the name I could probably Google the condensed structure!)?



So far, I know that the longest chain is octane and that we have a 3-methyl branch and some sort of branching on 4 and 5, I know these are alphabetized, but I do not know how to name these branches (would the two branches on 5 become 5-diethyl?  I have no clue for the 4 branch).

Here is a picture and the name courtesy of ChemDraw. The longest chain is shown in red.  Perhaps it will help you figure it out.

[jacksonpeebles]

Thank you!