When ethyl 4-hydroxybutyrate is heated in the presence of a trace of a basic catalyst (sodium acetate), one of the products is a lactone. Propose a mechanism for formation of this lactone.
Here we have to propose a mechanism for formation of this lactone from the heating of ethyl 4-hydroxybutyrate with sodium acetate
Ethyl-4-hydroxybutyrate when heated in presence of a trace of a basic catalyst like sodium acetate, it will form lactone.
The mechanism of the reaction is given below:-