The NMR spectrum of cinnamaldehyde follows. (a) Determine the chemical shifts of Ha, Hb and Hc. The

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The NMR spectrum of cinnamaldehyde follows.
The NMR spectrum of cinnamaldehyde follows.
(a) Determine the chemical shifts

(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.

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Organic Chemistry

ISBN: 978-0321768414

8th edition

Authors: L. G. Wade Jr.

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