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7. Reaction shown below produces two products. NMR of one of these products is shown below....
A student runs the reaction shown here and obtains the 'H NMR spectrum shown. Determine the...
A student runs the reaction shown here and obtains the 'H NMR spectrum shown. Determine the product of the reaction and draw the complete, detailed mechanism of the reaction. 3.4 3.3 1 excess CH3I ? 2. Ag20 NH2 3.A 10 9 8 6 4 3 2 1 0 7 5 Chemical shift (ppm)
Assume that the 1H NMR spectrum shown below was obtained on your isolated reaction product. Note...
Assume that the 1H NMR spectrum shown below was obtained on your isolated reaction product. Note that the frequency range of the original spectrum was -0.5 – 12 ppm, but the downfield range (~8.5 – 12 ppm) and upfield (< 4 ppm) were deleted in the printout because no signals were detected on those regions. a) Draw the chemical structure of the B-hydroxyketone intermediate. b) Is there any B-hydroxyketone contained in your reaction product? Why or why not? Refer to...
7.) Shown below are the spectra (labeled A and B) for the reactant and product in...
7.) Shown below are the spectra (labeled A and B) for the reactant and product in a bromination reaction. One spectrum shows C3H6Br20 and the other one shows C3H6O. Identify which spectra is which, draw the two structures for the reactant and product and then explain which peaks in the NMR spectra correspond to the hydrogens in the structure. s C₃ Ho Brzo - doublet of doublets, 2H Spectrum A (b) quintet, 1H broad singlet, 1H (a) doublet of doublets,...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
2. The 13C NMR spectrum is shown below for the major product of the following reaction....
2. The 13C NMR spectrum is shown below for the major product of the following reaction. Draw the structure of this product. Note that there is an important peak at ca. 166 ppm and that the peak at ca. 40 ppm is due to a contaminant. excess KMnO4 H H. aq. NaOH 200 180 100 80 40 20 160 140 120 60
C5H1002 7. Draw the structure of the compound that correlates with this NMR. The chemical formula...
C5H1002 7. Draw the structure of the compound that correlates with this NMR. The chemical formula is given. Annotate the spectrum as we did in class, using the a, b, c scheme. O PPM 8. Tell me two IR peaks you know must be present for this compound. Draw the chemical bond and give me the approximate cm-1 value for each peak.
1) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C.H.00. 2.22...
1) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C.H.00. 2.22 1.13 1.04 6.00 an 20 1.0 ppm 2) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C,H,O Integral 12 1 2 3 11 10 9 8 7 6 5 4 3 2 ppm
The 13C NMR spectra A and B for two molecules, each with a formula C5H8, are...
The 13C NMR spectra A and B for two molecules, each with a
formula C5H8, are shown below. One of them is for a molecule with
conjugated double bonds, the other is for a structure that is not
conjugated.
CHM 26200 Problem Set 2 Spring 2020 Due Feb 19 1) (30 points) The 13C NMR spectra A and B for two molecules, each with a formula CsHx, are shown below. One of them is for a molecule with conjugated double...
The compound that produces this H NMR spectrum is a ketone and has the molecular rmula...
The compound that produces this H NMR spectrum is a ketone and has the molecular rmula of CsH1202.Draw the structure of a compound that could give this spectrum H NMR Spectrum (400 MHE COCI, solution) exchanges expansion 0 ppm TMS 5 7 10 8 (ppm
Treating the compound shown below with ethanol will give one major product: CH,CH,он (7 pts) Using the 'H NMR for t...
Treating the compound shown below with ethanol will give one major product: CH,CH,он (7 pts) Using the 'H NMR for the product given below, draw the product in the box above a. 6H 3H 3H 2H 1H 1H 1H 1H PPM b. (8 pts) Assign the NMR below for the corresponding chemical shift values (s) singlet, (d) (t) triplet, and (q) quartet: doublet 3.2 (d) 5.7 (d) 5.6 (d) 1.4 (s) 3.9 (q) 1.2 (t) 3.4 (d) 1.0 (s)
A student runs the reaction shown here and obtains the 'H NMR spectrum shown. Determine the product of the reaction and draw the complete, detailed mechanism of the reaction. 3.4 3.3 1 excess CH3I ? 2. Ag20 NH2 3.A 10 9 8 6 4 3 2 1 0 7 5 Chemical shift (ppm)
7.) Shown below are the spectra (labeled A and B) for the reactant and product in a bromination reaction. One spectrum shows C3H6Br20 and the other one shows C3H6O. Identify which spectra is which, draw the two structures for the reactant and product and then explain which peaks in the NMR spectra correspond to the hydrogens in the structure. s C₃ Ho Brzo - doublet of doublets, 2H Spectrum A (b) quintet, 1H broad singlet, 1H (a) doublet of doublets,...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
2. The 13C NMR spectrum is shown below for the major product of the following reaction. Draw the structure of this product. Note that there is an important peak at ca. 166 ppm and that the peak at ca. 40 ppm is due to a contaminant. excess KMnO4 H H. aq. NaOH 200 180 100 80 40 20 160 140 120 60
C5H1002 7. Draw the structure of the compound that correlates with this NMR. The chemical formula is given. Annotate the spectrum as we did in class, using the a, b, c scheme. O PPM 8. Tell me two IR peaks you know must be present for this compound. Draw the chemical bond and give me the approximate cm-1 value for each peak.
1) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C.H.00. 2.22 1.13 1.04 6.00 an 20 1.0 ppm 2) Provide the structure of the molecule. Proton NMR spectrum is shown below. MF C,H,O Integral 12 1 2 3 11 10 9 8 7 6 5 4 3 2 ppm
The 13C NMR spectra A and B for two molecules, each with a
formula C5H8, are shown below. One of them is for a molecule with
conjugated double bonds, the other is for a structure that is not
conjugated.
CHM 26200 Problem Set 2 Spring 2020 Due Feb 19 1) (30 points) The 13C NMR spectra A and B for two molecules, each with a formula CsHx, are shown below. One of them is for a molecule with conjugated double...
The compound that produces this H NMR spectrum is a ketone and has the molecular rmula of CsH1202.Draw the structure of a compound that could give this spectrum H NMR Spectrum (400 MHE COCI, solution) exchanges expansion 0 ppm TMS 5 7 10 8 (ppm
Treating the compound shown below with ethanol will give one major product: CH,CH,он (7 pts) Using the 'H NMR for the product given below, draw the product in the box above a. 6H 3H 3H 2H 1H 1H 1H 1H PPM b. (8 pts) Assign the NMR below for the corresponding chemical shift values (s) singlet, (d) (t) triplet, and (q) quartet: doublet 3.2 (d) 5.7 (d) 5.6 (d) 1.4 (s) 3.9 (q) 1.2 (t) 3.4 (d) 1.0 (s)
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