Organic chemistry homework help? (NMR spectroscopy, etc.) Question 4 [1.4 pts] U

Question

Organic chemistry homework help? (NMR spectroscopy, etc.)

Question 4 [1.4 pts] Using the approach/notation/data presented in lecture what is the predicted chemical shift of proton Hj in ppm? Please provide just the numerical value, expressed with one decimal place, along with an asterisk if appropriate. Do not include units OH you will be provided with a list from which you will select your answer(s) Page 1 of4 Question 5 [1.4 pts] Using the approach/notation/data presented in lecture what is the predicted chemical shift of proton H in ppm? Please appropriate. Do not include merical value, expres with one decimal place, along wi th an asteri Question 6 [1.4 pts] How many unique signals will be exhibited in the proton NMR spectrum of compound L? Compound L Compound M

Explanation / Answer

4. The predicted chemical shift value for the HJ proton is 4.9 ppm

5. The predicted chemical shift value for the HK proton is 4.5 ppm

6. For the compound L, there appears a 1 unique signal for 2 methyl groups

7. For the compound M, there appears a 1 unique signal for 3 methyl groups

8. Multiplet for Hp

9. Quartet (4 signals)

11. Spectral data belongs to Compounds Y and Z respectively

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