Need help assigning the peaks of 13C and 1H NMR spectrum of pieprine single puls

Question

Need help assigning the peaks of 13C and 1H NMR spectrum of pieprine

single pulse.a “ inlation sna purifi 2 . 2 17696 [m] 300-52955592[HH%) " 0.34397632 1111 2.90727696 7.0 Relaxation-delag “ 4tn1 -nepot it ica-tine " 6.90717696( : 21.910c1 X: parts per Million: IH Creation tine16-N0V-2017 x_acq-duration 1.3#141 2032 [a] -1.38412032 s1 180.0 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 90.0 80.0 700 600 50.0 40.0 30.0 20.0 10.0 de p- Repetition-time = 3.38412032 POTO 106623PT-R26232 123-X EC DE 71171 32 4 0 3 1 ot, 24 24 ng T691'LL 6685, LL 65tL'SOT E99S'801 2 sees. $91

Explanation / Answer

Spectral analysis of piperine

1H NMR

0.9 ppm (pentet, 2H) for CH2 between two other CH2's

1.3 ppm (pentet, 4H) for CH2 between two other CH2's

1.6 ppm (triplet, 4H) for CH2 between N and CH2

3.65 ppm (doublet, 2H) for CH2 between two oxygen

5.9 ppm (doublet, 1H) for alkenic CH next to C=O

6.4 ppm (triplet, 1H) for alkenic CH between two alkenic CH's

6.7 ppm (m, 3H) for phenyl protons

6.8 ppm (doublet, 1H) for alkenic CH next to Phenyl ring

13C NMR

6 ppm for CH2 carbon between two CH2's

24 ppm for CH2 carbons between two CH2's

47 ppm for CH2 carbon next to N

101 ppm for CH2 between two O

105,108, 120 ppm are for alkenic carbons

In between 122-165 ppm peaks for phenyl carbons (CH and C's)

182 ppm for C=O carbon

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