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Shown below are the starting material propiophenone (1), and the product of alpha d. bromination (2),...
5.314 Whee 10.0 9.5 9.0 8.5 8.0 7.5 2.500 70 6.5 6.0 5.5 ppm 5.0 46...
5.314 Whee 10.0 9.5 9.0 8.5 8.0 7.5 2.500 70 6.5 6.0 5.5 ppm 5.0 46 40 35 30 25 20 15 10 d. Shown below are the starting material propiophenone (1), and the product of alpha bromination (2), Determine how each compound could be easily identified by HNMR of the alkyl substituent by identifying the approximate chemical shift, integration, and splitting you would observe for the protons labeled in each compound. 4pts Proton Approx. shift, ppm Integ. Splitting: s,d,...
2. Consider the protons labeled H., H., H., of the compound shown below. Each of these...
2. Consider the protons labeled H., H., H., of the compound shown below. Each of these protons are chemically different and are split by at least one other type of proton. coupling constants are shown below. HA HOHC C= "Hc JAB = 15.1 Hz JBC = 6.4 Hz Draw the splitting tree for each proton, H., Ho, and H. 3. Propose a structure for the following compounds piven the spectra and molecula formula. Briefly describe how each spectrum supports your...
5. The 'H NMR spectrum of 2-bromo-1-ethoxy-4-nitrobenzene is shown below, and the peak list has been...
5. The 'H NMR spectrum of 2-bromo-1-ethoxy-4-nitrobenzene is shown below, and the peak list has been assembled in the table. In the structure of the product, each proton has been labeled with a letter. NO2 6 (ppm) H NMR spectrum of 2-bromo-1-ethoxy-4-nitrobenzene Proton(s) in Peak FrequencyPeak Multiplicity Peak Integration Number of Protons s, d, etc t, J- 7.0 Hz q, J 7.0 Hz dd, J - 8.4, 0.4 Hz dd, J - 8.4, 1.7 Hz dd, J-1.7, 0.4 Hz Molecule...
1. Interpreting the Table 1. For the following exercise, reference Figure 13.8 in your textbook or...
1. Interpreting the Table 1. For the following exercise, reference Figure 13.8 in your textbook or e-book, and watch the video for that figure in the e-book, For each labelled proton, indicate the ppm range you would expect to find it in for an NMR spectrum. Don't over-think it, just use the chart at this point (Note: In many cases, especially in biochemistry, there will be many complicating factors - here we are just looking at the simple model). CH...
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)
5.314 Whee 10.0 9.5 9.0 8.5 8.0 7.5 2.500 70 6.5 6.0 5.5 ppm 5.0 46 40 35 30 25 20 15 10 d. Shown below are the starting material propiophenone (1), and the product of alpha bromination (2), Determine how each compound could be easily identified by HNMR of the alkyl substituent by identifying the approximate chemical shift, integration, and splitting you would observe for the protons labeled in each compound. 4pts Proton Approx. shift, ppm Integ. Splitting: s,d,...
2. Consider the protons labeled H., H., H., of the compound shown below. Each of these protons are chemically different and are split by at least one other type of proton. coupling constants are shown below. HA HOHC C= "Hc JAB = 15.1 Hz JBC = 6.4 Hz Draw the splitting tree for each proton, H., Ho, and H. 3. Propose a structure for the following compounds piven the spectra and molecula formula. Briefly describe how each spectrum supports your...
5. The 'H NMR spectrum of 2-bromo-1-ethoxy-4-nitrobenzene is shown below, and the peak list has been assembled in the table. In the structure of the product, each proton has been labeled with a letter. NO2 6 (ppm) H NMR spectrum of 2-bromo-1-ethoxy-4-nitrobenzene Proton(s) in Peak FrequencyPeak Multiplicity Peak Integration Number of Protons s, d, etc t, J- 7.0 Hz q, J 7.0 Hz dd, J - 8.4, 0.4 Hz dd, J - 8.4, 1.7 Hz dd, J-1.7, 0.4 Hz Molecule...
1. Interpreting the Table 1. For the following exercise, reference Figure 13.8 in your textbook or e-book, and watch the video for that figure in the e-book, For each labelled proton, indicate the ppm range you would expect to find it in for an NMR spectrum. Don't over-think it, just use the chart at this point (Note: In many cases, especially in biochemistry, there will be many complicating factors - here we are just looking at the simple model). CH...
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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