The NMR spectrum of cinnamaldehyde follows. (a) Determine the chemical shifts of Ha, Hb and Hc. The
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(a) Determine the chemical shifts of Ha, Hb and Hc. The absorption of one of these protons is difficult to see; look carefully at the integrals.
(b) Estimate the coupling constants Jab and Jbc.
(c) Draw a tree to analyze the complex splitting of the proton centered at d6.7.
Transcribed Image Text:
50Hz На Hb 676 666 10 6 0 δ (ppm)
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