[coolguy99]

this is how I worked it out:



4-tert-butyl 1,2-dimethyl hexanol

Is that right?

[Schrödinger]

-OH IS the principal functional group - you were right about that of course.

But if you are looking for the IUPAC name, find the longest chain (if two chains are equal in length, consider the one containing the most number of substituents and functional group).

 Moreover, i don't think we use names like tert-butyl, i-propyl etc. although they are accepted names. You are supposed to use numbers for substituents in the IUPAC nomenclature. I mean like, that gives a nice and good picture of a molecule.

[Dan]

You haven't quite found the longest chain, almost though...

[Fridushka]

Yeah you haven't found your longest chain, refer to the name you have named it can also help you ..

Good Luck

[coolguy99]

alright, I see what I did wrong with the chain, I think..



so...

5-ethyl-3-methyl-6-dimethyl heptanol?

[sjb]

alright, I see what I did wrong with the chain, I think..
...
5-ethyl-3-methyl-6-dimethyl heptanol?

Almost there - you don't say where the alcohol is, and you can condense some of your substituents into fewer prefixes....

[coolguy99]

yeah after I posted I realized I could combine dimethyl and methyl..

so..

5-ethyl-3,6-trimethyl heptanol

how do you specify where the alcohol is, though? I don't think we learned that (yet?)

[Dan]

5-ethyl-3,6-trimethyl heptanol

If it's trimethyl you need three numbers - ie. 3,6,6-trimethyl (to distinguish it from 3,3,6-trimethyl)

For the alcohol part, here's an example - isopropanol (CH₃CHOHCH₃) is systematically named propan-2-ol.

[coolguy99]

Alright, that's making some sense, so..


5-ethyl-3,6,6-trimethyl-heptan-2-ol

?

[Schrödinger]

correct