Question 3 [1.6 pts] Using the approach/notation/data presented in lecture what

Question

Question 3 [1.6 pts] Using the approach/notation/data presented in lecture what is the predicted chemical shift ofproton HE in ppm? Please provide just the numerical value, expressed with one decimal place, along with an asterisk ifappropriate. Do not include units.

Question 4 [1.6 pts] Using the approach/notation/data presented in lecture what is the predicted chemical shift ofproton HF in ppm? Please provide just the numerical value, expressed with one decimal place, along with an asterisk ifappropriate. Do not include units.

Explanation / Answer

HE proton chemical shift around ----------> around 3.5 ppm

because it is ether connected carbon proton

HF proton chemical shift around ----------> around 2.5 ppm

because it is ketone adjacent carbon proton

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