Chapter 14, Problem 14.52P

Answer the following questions about each of the hydroxy ketones: $1$-hydroxybutan- $2$-one (A) and $4$-hydroxybutan- $2$-one (B).

$1$-hydroxybutan- $2$-one $4$-hydroxybutan- $2$-one

A B

a. What is the molecular ion in the mass spectrum?

b. What IR absorptions are present in the functional group region?

c. How many lines are observed in the ${}^{\text{13}}\text{C}$ NMR spectrum?

d. How many signals are observed in the ${}^{\text{1}}\text{H}$ NMR spectrum?

e. Give the splitting observed for each type of proton as well as its approximate chemical shift.