Question

2. Use resonance structures to predict which of the circled resonances would be upfield/downfield in the 1H NMR spectra of the following compounds. Circle the resonance (A or B) that produces the most downfield chemical shift. B > AHO CH3 ŽI --I- I I I PI 3. Show the splitting trees for the resonances of the protons circled below and predict the line patterns in the resonances. HTCH IHO - Η ΚΗ H 3Jtrans = 15.7 Hz, 3Js-bond = 6.3 Hz) 3J =8.0 Hz, 4) = 1.6 Hz

Answer 1

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