Chapter 14: Q.21558-14-68P (page 567)
Question. Compound Q has molecular formula C5H9CIO2. Deduce the structure of P from its 1H and 13C -NMR spectra.
Short Answer
Answer
The structure of Q is as follows:
Chapter 14: Q.21558-14-68P (page 567)
Question. Compound Q has molecular formula C5H9CIO2. Deduce the structure of P from its 1H and 13C -NMR spectra.
Answer
The structure of Q is as follows:
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Get started for freeQuestion: How can you use 1H NMR spectroscopy to distinguish between CH2=C(Br)CO2CH3 and methyl (E)-3-bromopropenoate, BrCH=CHCO2CH3?
How many lines are observed in the \({}^{{\bf{13}}}{\bf{C}}\) NMR spectrum of each compound?
a.
b.
c.
d.
Which of the highlighted carbon atoms in each molecule absorbs farther downfield?
a.
b.
c.
d.
Question: As we will learn in Chapter 20, reaction of (CH3)2CO with followed by affords compound D, which has a molecular ion in its mass spectrum at 84 and prominent absorptions in its IR spectrum at 3600–3200, 3303, 2938, and 2120cm-1 . D shows the following 1 H NMR spectral data: 1.53 (singlet, 6 H), 2.37 (singlet, 1 H), and 2.43 (singlet, 1 H) ppm. What is the structure of D?
Draw all constitutional isomers of molecular formula C3H6Cl2.
a. How many signals does each isomer exhibit in its 1HNMR spectrum?
b.How many lines does each isomer exhibit in its 13CNMR spectrum?
c. When only the number of signals in both 1Hand 13C NMR spectroscopy is considered, is it possible to distinguish all of these constitutional isomers?
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