What is the IUPAC name for the expected product of the reaction below?
A) propyne
B) 1-hexyne
C) 2-hexyne
D) 3-hexyne
E) (
E)-3-hexyne

Question

What is the IUPAC name for the expected product of the reaction below? 
A) propyne 
B) 1-hexyne 
C) 2-hexyne 
D) 3-hexyne 
E) (
E)-3-hexyne

Quizplus · Accepted Answer

The reaction shown is an elimination reaction between 2-bromo-3-hexyne and sodium ethoxide. This results in the removal of a bromine atom and a proton on the same carbon, leading to the formation of an alkyne. Since the parent chain is hexane, the product must be a hexyne. There are three possible isomers of hexyne: 1-hexyne, 2-hexyne, and 3-hexyne. However, since the carbon-carbon triple bond must start at the third carbon from the bromine, the final product can only be 2-hexyne.

What Is the IUPAC Name for the Expected Product of the Reaction