Question

label the remaining peaks on the Aldol condensation NMR with the correct substance (the peaks are circled in blue) DO NOT LABLE THEM AS HYDROGENS. The product is impure the circled peaks are substances that make the product impure and do not belong there, find the substance(s) that are the peaks circled in blue and labke it as such.

19 0750 98 n2 ノ)2厂 3 He Но Ha To Ho Rxw s cheme OH NaOH H3 уз Pre lab 9ustrors a zard9 bilon inhalation ,388 C 348.2°c

Answer 1

The peak between e and f peaks corresponds to the solvent CDCl₃ . And since the aldol condensation reaction is carried out in aqueous solution the O-H proton of H₂O interferes around 1.3-1.5 in the NMR signals.