Question

In the presence of strong bases, triple bonds will migrate within carbon skeletons by the:

• A. removal of protons
• B. addition of protons
• C. removal and readdition of protons
• D. addition and removal of protons

Answer 1

Answer: (C)

removal and readdition of protons

Alkyne in presence of strong base, triple bonds will migrate with in certain skeletons by,

Sodium amide is a strong base and it will deprotonate alkyne and host of other functional group with acidic protons such as ester and ketones.

Here elimination of bromine by amide group is happen.