BackPropose structures that are consistent with the following spectra. (Integral ratios are given from left to right across the spectrum.)
b. The 1H NMR spectrum of a compound with molecular formula C6H10O2 has two singlets with integral ratios of 2 : 3.
Which of the following compounds is responsible for the 1H NMR spectrum shown below?
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Identify each compound from its molecular formula and its 1H NMR spectrum:
b. C5H10O
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Describe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals:
n.
The following 1H NMR spectra are for four compounds, each with molecular formula of C6H12O2. Identify the compounds.
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When compound A (C5H12O) is treated with HBr, it forms compound B (C5H11Br). The 1H NMR spectrum of compound A has a 1H singlet, a 3H doublet, a 6H doublet, and two 1H multiplets. The 1H NMR spectrum of compound B has a 6H singlet, a 3H triplet, and a 2H quartet. Identify compounds A and B.
In the lab, ¹H NMR is often used to verify that a reaction has worked as expected by comparing the product spectrum with what is expected. Given the ¹H NMR of the reactant shown, draw the spectrum you'd expect to see of the product that results.
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(a) Using the ¹H NMR spectra, identify the reactants and product for this reaction.
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(b) Provide an arrow-pushing mechanism for the reaction.
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Without worrying about the relative location of the signals (i.e., the chemical shift) or the splitting patterns, draw a spectrum of the following molecule, being sure to indicate the integration of each peak. Label each signal based on the set of equivalent hydrogens to which it corresponds. [We expand on this question in future assessments.]
Draw the ¹H NMR spectrum you would expect to see for each of the molecules in Assessment 15.63.
(b)
Draw the ¹H NMR spectrum you would expect to see for each of the molecules in Assessment 15.63.
(c)
Draw the ¹H NMR spectrum you would expect to see for each of the molecules in Assessment 15.63.
(d)
Draw a spectrum for each of the following molecules, being sure to indicate the multiplicity, integration, and chemical shift of each peak. Label each signal based on the set of equivalent hydrogens to which it corresponds.
(b)
Draw a spectrum for each of the following molecules, being sure to indicate the multiplicity, integration, and chemical shift of each peak. Label each signal based on the set of equivalent hydrogens to which it corresponds.
(c)