Question

In: Chemistry

A compound has a molecular formula of C4H6O2 and exhibits the following 13C NMR spectrum. δ...

A compound has a molecular formula of C4H6O2 and exhibits the following 13C NMR spectrum. δ 51.32, 44.17

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C5H8O2 and exhibits the following 13C NMR spectrum.

δ 199.83, 197.54, 29.22, 23.70, 6.95

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C4H6O2 and exhibits the following 13C NMR spectrum.

δ 51.32, 44.17

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C5H8O2 and exhibits the following 13C NMR spectrum.

δ 170.67, 132.50, 118.09, 65.19, 20.81

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C5H8O2 and exhibits the following 13C NMR spectrum.

δ 202.09, 58.52, 30.82

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C4H6O2 and exhibits the following 13C NMR spectrum.

δ 168.39, 68.12, 44.36, 20.58

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C8H10 and exhibits the following 13C NMR spectrum.

δ 134.66, 128.97, 20.90

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C5H8O2 and exhibits the following 13C NMR spectrum.

δ 199.83, 197.54, 29.22, 23.70, 6.95

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C8H10 and exhibits the following 13C NMR spectrum.

δ 136.42, 129.63, 125.85, 19.66

Which of the compounds listed below would be consistent with this structure?

A compound has a molecular formula of C5H8O2 and exhibits the following 13C NMR spectrum.

δ 166.18, 130.31, 128.88, 60.48, 14.28

Which of the compounds listed below would be consistent with this structure

Solutions

Expert Solution


Related Solutions

Deduce the identity of the following compound from the spectral data given. C9H10O2: 13C NMR, δ...
Deduce the identity of the following compound from the spectral data given. C9H10O2: 13C NMR, δ 18.06 (quartet), 45.40 (doublet), 127.32 (doublet), 127.55 (doublet), 128.61 (doublet), 139.70 (singlet), 180.98 (singlet); IR, broad 3500-2800, 1708 cm-1
A hydrocarbon A has the molecular formula C8H14. Its NMR spectrum consists of a triplet at...
A hydrocarbon A has the molecular formula C8H14. Its NMR spectrum consists of a triplet at 1.2 ppm (relative peak area of 2), a triplet at 1.9 ppm (relative peak area of 2) and a singlet at 2.0 ppm (relative peak area of 3). When compound A is treated with Br2 in CCl4 (no light), a new compound B is formed with a molecular formula of C8H14Br2. The NMR spectrum of B looks the same as that of A, except...
Describe the 13C NMR spectrum of 2-methylcyclohexanol.
Describe the 13C NMR spectrum of 2-methylcyclohexanol.
The proton NMR spectrum for a compound with the formula C7H14O is shown below along with...
The proton NMR spectrum for a compound with the formula C7H14O is shown below along with carbon-13 spectral data in tabular form. (It may be necessary to expand (zoom) some of the 1H signals to view spin-spin splitting details.) This compound exhibits strong infrared absorption at 1717 cm-1, but the 1500-1650 cm-1 region is empty. 13C Data Normal Carbon DEPT-135 DEPT-90 Proton Shift Relative Area 13.8 Positive No peak 0.91 3.2 17.2 Negative No peak 1.09 5.8 18.2 Positive No...
Propose a structure for the compound that has the following spectra: NMR: δ 1.28 (3H, t,...
Propose a structure for the compound that has the following spectra: NMR: δ 1.28 (3H, t, J = 7 Hz); δ 3.91 (2H, q, J = 7 Hz); δ 5.0 (1H, d, J = 4 Hz); δ 6.49 (1H, d, J = 4 Hz) ppm IR: 3100, 1644 (strong), 1104, 1166, 694 cm -1 (strong) no IR absorptions in the range 700-1100 cm -1 or above 3100 cm-1 Mass spectrum: m/z = 152, 150 (equal intensity; double molecular ion)
Identify the compound A (C5H10O) with the proton NMR spectrum shown. Compound A has IR absorptions...
Identify the compound A (C5H10O) with the proton NMR spectrum shown. Compound A has IR absorptions at 3200–3600 cm–1 (strong, broad), 1676 cm–1 (weak), and 965 cm–1, and also has 13C NMR absorptions (attached protons in parentheses) at δ 17.5 (3), δ 23.3 (3), δ 68.8 (1), δ 125.5 (1), and δ 135.5 (1). Compound A may be resolved into enantiomers; draw one molecule of A, omitting wedge/dash bonds.
1H NMR spectrum A corresponds to a molecule with the formula C3H5Cl.
1H NMR spectrum A corresponds to a molecule with the formula C3H5Cl. The compound shows significant IR bands at 730 (see Problem 53 of Chapter 11), 930, 980, 1630, and 3090 cm-1. (a) Deduce the structure of the molecule. (b) Assign each NMR signal to a hydrogen or group of hydrogens. (c) The “doublet” at δ = 4.05 ppm has J ≈ 6 Hz. Is this in accord with your assignment in (b)? (d) This “doublet,” upon five-fold expansion, becomes...
How many unique 1H NMR signals exist in the spectrum of the following compound?
How many unique 1H NMR signals exist in the spectrum of the following compound?
Determine the empirical formula for each compound from the molecular formula. molecular formula=C3H6 empirical formula= molecular...
Determine the empirical formula for each compound from the molecular formula. molecular formula=C3H6 empirical formula= molecular formula=C6H12O6 empirical formula=
How is the formula for an ionic compound similar to the empirical formula for a molecular...
How is the formula for an ionic compound similar to the empirical formula for a molecular compound?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT