(Solved): Problem #1. 4-hydroxyhexanoic acid undergoes an intramolecular Fischer esterification reaction to ...

Problem #1. 4-hydroxyhexanoic acid undergoes an intramolecular Fischer esterification reaction to produce a lactone (cyclic ester). a) Draw an arrow-pushing mechanism for this reaction. Include all lone pairs and non-zero formal charges. If any steps of the mechanism are reversible, use equilibrium (?) arrows. H+ OH OH b) Draw the structure of the lactone that would be produced from 5-hydroxy-2-methylhexanoic acid.