The NMR spectrum of vitamin D 3 is given in Fig. P13.58. Interpret the resonances marked with

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The NMR spectrum of vitamin D3 is given in Fig. P13.58.HO CHH H HC HC- H H vitamin D3 CH3 CHCHCHCH T CH 3

Interpret the resonances marked with asterisks (*) by indicating the part of the structure to which they correspond.

(Do not try to assign the individual resonances within the groups.) Explain your choices.2400 absorption 8 2100 residual CHCI 3 7 1800 vitamin D3 (C27H440) 11.3 Hz 1H 11.3 Hz  1 6 1500 * chemical

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Organic Chemistry

ISBN: 9781936221349

6th Edition

Authors: Marc Loudon, Jim Parise

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