# Question #8ac35

Jun 18, 2015

Yes, this is an ester hydrolysis.

#### Explanation:

A lactone is simply a cyclic ester, so the mechanism for its hydrolysis is exactly the same as for a noncyclic ester.

In this case, the structure of γ-butyrolactone is

The hydrolysis product is 4-hydroxybutanoic acid:

The alcohol group is acidic enough to react with ${\text{LiAlH}}_{4}$.

When you reduce the product, remember to add enough extra ${\text{LiAlH}}_{4}$ to react with the alcohol group as well