2a) Label the protons in each highlighted CH, group as homotopic, enantiotopic, or diastereotopic. Structure: Homotopic, Enantiotopic, or Diastereotopic? b) There is one structure in Question 1 that contains diastereotopic protons, leading to a higher number of signals than you originally may have expected. Circle the structure and revise (if necessary) the number of ¹H signals you expect that structure to exhibit.

Please do C-NMR for this molecule

2. Consider the two ¹H NMR spectra sketched below that correspond to the molecule shown. Assign the peaks in each spectrum to the different sets of equivalent protons in the molecule. Why do the spectra for this molecule look different when measured at different temperatures? IN 84°C M 38°C 3 N 1 ppm

In the following FTIR Spectrum, what functional group can you recognize? 100 Carboxylic acid Alcohol Ether O Alkene 3000 2000 www HAVENUMBERI-l 1500 1000 500

3

Can you please confirm if this H-NMR spectrum belongs to this molecule and identify the signals of each spectrum.

3, Draw the correct molecule in the box to the right. Label the relevant peaks in the spectra with the proper functional group. If the absence of key peaks led to your choice, indicate which key peaks were absent.

Draw the structure that fits each spectrum and assign each CHx group to appropriate peaks. (reference point at 0 ppm)

Which structure is most consistent with the proton NMR spectrum shown below?

Question 1 Please drag the chemical shift below to the appropriate proton position d 2.34 CH3 d 7.00 - 7.38 toluene 10 8 7 4 1 HSP-00-541 ppm 2. 00