How many distinct signals would appear in the (proton-decoupled) 13C NMR spectrum for the product of the following reaction? (How many chemically equivalent carbons in the product?) HBr Br 4. ROOR

12 11 broad singlet 1=1 5. The ¹H NMR spectrum of ibuprofen (the starting material for our reaction) is shown below. Match the peaks of the spectrum with their corresponding protons by filling in the boxes with A-H. A HO 10 D H. E 9 F HHH H₂CH H B C H HG 8 CH3 CH3 H doublet doublet 1=2 1=2 6 5 4 quartet I=1 3 doublet 1=2 doublet 1=3 2 multiplet 1=1 doublet 1=6 0

May you please help me with this ochem question?

3. For the structure shown, assign the signals to the respective hydrogen and carbon on the HNMR and CNMR spectra given below. O n R

1. How many proton signals would you expect to see in the ¹H-NMR spectrum of the following molecule? For each of the proton signals, predict the splitting pattern, assuming that you can see only 3-bond splitting.

What would be the major product of this reaction? Discuss the 1H-NMR spectrum of the product and significant changes between the starting material and your product.

ch1

Nitesh