For each compound shown below, (1) Sketch the 13C NMR spectrum (totally decoupled, with a singlet for each type of carbon), showing approximate chemical shifts. (2) Show the multiplicity expected for each signal in the off-resonance-decoupled spectrum. (3) Sketch the spectra expected using the DEPT-90 and DEPT-135 techniques. (a) (b) (c) (d) CH -C-O-CH-_CH3 ethyl acetate HC CH-CH2CI 3-chloropropene CHCH,Br
Chapter 13, Problems #41
For each compound shown below,
(1) Sketch the 13C NMR spectrum (totally decoupled, with a singlet for each type of carbon), showing approximate chemical shifts.
(2) Show the multiplicity expected for each signal in the off-resonance-decoupled spectrum.
(3) Sketch the spectra expected using the DEPT-90 and DEPT-135 techniques.
(a)
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(1) Sketch the 13C NMR spectrum (totally decoupled, with a singlet for each type of carbon), showing approximate chemical shifts.
(2) Show the multiplicity expected for each signal in the off-resonance-decoupled spectrum.
(3) Sketch the spectra expected using the DEPT-90 and DEPT-135 techniques.
(a)
(b)
(c)
(d)
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Answer
The multiplicity in the off-resonance decoupled spectrum is given below each chemical shift: s = si…View the full answer
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