Give the name of the following molecule. A compound with a total of nine carbons total with one double bond and the rest single bonds. There is a chain of s

Question

Give the name of the following molecule.

A compound with a total of nine carbons total with one double bond and the rest single bonds. There is a chain of six carbons across the bottom with a double bond between the 5th and 6th carbons when counting from left to right. There is a propyl group branching off of the third carbon from the left.

Answer 1

If I understand you description, you have the longest continuous chain being 7 carbons, counting from the right and including the propyl group. Seven carbons is heptane, and a double bond makes it heptane. So, counting from the right, you have 4-ethyl-1-heptene.

 

C-C-C-C-C=C

........|

.......C-C-C

 

Start numbering from the right where the double bond is and when you get to C#4 go down to the propyl group number them 5, 6, 7.  Then you have a 2 carbon (ethyl) group off of C#4.