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The spectra for the final product of hydroboration-oxidation of propyne are shown below: 100- M + Relative Intensity 1...
4. Predict the major product for each of the hydroboration-oxidation reactions shown below. TE 1.BH, THF...
4. Predict the major product for each of the hydroboration-oxidation reactions shown below. TE 1.BH, THF 2. H,O,/NaOH 1. BH, THE 2. H.Oz/NaOH
Check 200 180 160 120 80 60 40 20 0 140 a 100 ppm s, 3H t, 3 H d. 2 a. 2 H d. 2H s, 1 H 1 10 9 8 7 6 4 3 2 1 5 ppm 1) W...
Check 200 180 160 120 80 60 40 20 0 140 a 100 ppm s, 3H t, 3 H d. 2 a. 2 H d. 2H s, 1 H 1 10 9 8 7 6 4 3 2 1 5 ppm 1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret mol peak and base peak in the mass spectrum if a mole peak exists. Assign at least two 13C signals, How does the IR spectrum...
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,...
Use the spectra below to determine the molecular formula and chemical structure of the unknown compound....
Use the spectra below to determine the molecular formula and
chemical structure of the unknown compound.
MASS 142 % of Base Peak 1147 40 50 70 80 5 100 % Transmittance Jari- 3000 1000 4000 'H NMR 300 MERE 2000 Wavenumber (cm) 3.0 25 20 15 Ppm 4.0 3.5 C/DEPT NMR 75.5 MHz ppm 60 50 40 80 70 90 100 110 120 170 160 150 140 130 ppm 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm COSY 300 MHz...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important...
Using these spectra, identify the unknown compound and its structure. Explain your analysis of each spectrum....
Using these spectra, identify the unknown compound and its
structure. Explain your analysis of each spectrum.
/H d 3H 3H 12 11 10 1 4 2 0 ppm 40 60 100 80 120 140 160 180 200 ppm -20 -O 100- 80- M 20 M 0mttT 10 20 30 40 50 100 120 60 70 80 90 110 m/z L00 50 1000 200 3000 AVENUMEERI-i 4000 44 620 962 1288 31 62 1778 13 596 84 3664 923 1270 74...
1. What is the chemical formula of the unknown? 2. what is the mass of the...
1. What is the chemical formula of the unknown?
2. what is the mass of the unknown?
3. What is the HDI?
4. According to IR spectra, what functional groups are
present?
5. What is the structure of the molecule?
138 PRACTICAL SPECTROSCOPY Compound 80 is a liquid (boiling point 212 C), that can be prepared by the reaction of Compound 79 with acidic, anhydrous ethanol. The Mass, IR, and 'H NMR spectra, along with C NMR data, are given...
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all ex...
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm *H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR pea ks listed are strong (s) unless otherwise indicated for signals above 1500 cm H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important...
4. Predict the major product for each of the hydroboration-oxidation reactions shown below. TE 1.BH, THF 2. H,O,/NaOH 1. BH, THE 2. H.Oz/NaOH
Check 200 180 160 120 80 60 40 20 0 140 a 100 ppm s, 3H t, 3 H d. 2 a. 2 H d. 2H s, 1 H 1 10 9 8 7 6 4 3 2 1 5 ppm 1) Which compound gives the following spectra? For the 'H-NMR assign all signals. Interpret mol peak and base peak in the mass spectrum if a mole peak exists. Assign at least two 13C signals, How does the IR spectrum...
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,...
Use the spectra below to determine the molecular formula and
chemical structure of the unknown compound.
MASS 142 % of Base Peak 1147 40 50 70 80 5 100 % Transmittance Jari- 3000 1000 4000 'H NMR 300 MERE 2000 Wavenumber (cm) 3.0 25 20 15 Ppm 4.0 3.5 C/DEPT NMR 75.5 MHz ppm 60 50 40 80 70 90 100 110 120 170 160 150 140 130 ppm 4.5 4.0 3.5 3.0 2.5 2.0 1.5 ppm COSY 300 MHz...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important...
Using these spectra, identify the unknown compound and its
structure. Explain your analysis of each spectrum.
/H d 3H 3H 12 11 10 1 4 2 0 ppm 40 60 100 80 120 140 160 180 200 ppm -20 -O 100- 80- M 20 M 0mttT 10 20 30 40 50 100 120 60 70 80 90 110 m/z L00 50 1000 200 3000 AVENUMEERI-i 4000 44 620 962 1288 31 62 1778 13 596 84 3664 923 1270 74...
1. What is the chemical formula of the unknown?
2. what is the mass of the unknown?
3. What is the HDI?
4. According to IR spectra, what functional groups are
present?
5. What is the structure of the molecule?
138 PRACTICAL SPECTROSCOPY Compound 80 is a liquid (boiling point 212 C), that can be prepared by the reaction of Compound 79 with acidic, anhydrous ethanol. The Mass, IR, and 'H NMR spectra, along with C NMR data, are given...
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm *H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR pea ks listed are strong (s) unless otherwise indicated for signals above 1500 cm H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important...
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