Answer Happy

1) In the empty boxes, indicate the maximum total number of possible peaks in the ¹H NMR spectra of the compounds below. Label the unique types of H within the structures below as H1, H2, H3, etc. (7 pts) NOTE: keep in mind the molecule's symmetry & use the "substitution test" approach of mentally substituting, one at a time, each H for Cl, to see how many monochloro isomers you would generate. This tells you how many different types of H are present, which equals the number of possible NMR peaks (see examples in lab lecture notes). (a) (e) -Br Br H H H CH3 'Br (b) "Xo H (f) H H (c) 2) Predict the maximum total number of possible peaks in the ¹H NMR spectrum of sesamin (6 pts) Indicate the number of non-aromatic peaks in the ¹H NMR of sesamin Indicate the number of aromatic peaks in the ¹H NMR of sesamin H Н.... HBr H Br H Br H O 3) Using the template structure of sesamin below, label the sets of equivalent hydrogens as H1, H2, H3, etc. (6 pts) H sesamin H H Br H (g) H H (d) H CH3 H Br CH3 CH3 H CH3 Br X H H