Question

The question asks to determine the IUPAC name of a compound based on a diagram.

I would choose the name:

(Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene

However, this doesn't match any of the given choices. They are:

a. (Z,Z)-5-Ethyl-2,4,6-trimethyloctadiene
b. (E)-5-Ethyl-2,4,6-trimethyloctanadiene
c. (Z)-5-Ethyl-2,4,6-trimethyloctanadiene
d. (Z,Z)-5-sec-Butyl-2,4-dimethylheptanadiene

It looks like the closest answer is C. But:

What is the "na" in "nadiene"?
Why aren't the positions of these two double bonds specified?

Answer 1

(I think my tabs broke that post. retrying...)

The question asks to determine the IUPAC name of a compound based on a diagram.

I would choose the name:

(Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene

However, this doesn't match any of the given choices. They are:

a.(Z,Z)-5-Ethyl-2,4,6-trimethyloctadiene
b.(E)-5-Ethyl-2,4,6-trimethyloctanadiene
c.(Z)-5-Ethyl-2,4,6-trimethyloctanadiene
d.(Z,Z)-5-sec-Butyl-2,4-dimethylheptanadiene

It looks like the closest answer is C. But:

What is the "na" in "nadiene"?
Why aren't the positions of these two double bonds specified?

Answer 2

could help but i can't find that diagram ur talking about

Answer 3

I was hoping you could envision the molecule given my estimated IUPAC name of:

(Z)-5-ethyl-2,4,6-trimethyl-2,4-octadiene