Dx Quiz

Question 1

Gives an HNMR spectrum that has two singlets at 8.5 and 13.4 (shifts are concentration and solvent dependent the H at 13.4 undergoes exchange with D2O)

Answer 1

Salicylamide (5)

Question 2

Gives an H NMR spectrum that has a single integrating for 3H at 2.1. It should have a broad singlet at 12 however most samples do not show this absorption unless they have been dried extensively.

Answer 2

Aspirin (2)

Question 3

Gives an H NMR spectrum that has a symmetrical complex multiplet at 1.8 that appears to be a nonet

Answer 3

Ibuprofen (4)

Question 4

Gives an H NMR spectrum consisting of four singlets that range from 3.2 to 8

Answer 4

Caffeine (3)

Question 5

Gives an H NMR spectrum that has two doublets integrating for 2 Hs each at 6.8 and 7.4

Answer 5

Acetaminophen (1)