Give the IUPAC name for the following compound.
A)isoprene
B)3-methyl-1,3-butadiene
C)2-methyl-1,3-butadiene
D)2-methyl-2,3-butadiene
E)isobutadiene

Question

Give the IUPAC name for the following compound. 
A)isoprene 
B)3-methyl-1,3-butadiene 
C)2-methyl-1,3-butadiene 
D)2-methyl-2,3-butadiene 
E)isobutadiene

Quizplus · Accepted Answer

The compound has a chain of four carbon atoms with two double bonds. The double bonds start at the second and third carbon atoms. The longest chain of carbon atoms is four, so the prefix is buta-. The double bonds start at the second and third carbon atoms, so the suffix is -diene. The molecule has a methyl group on the second carbon atom, so it is named as 2-methyl-1,3-butadiene.

Give the IUPAC Name for the Following Compound