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For the compounds below provide the amount of expected signals for both the 1H and 13C NMR and the splitting (s, d, t,...
2) For the compounds below provide the amount of expected signals for both the 'H and...
2) For the compounds below provide the amount of expected signals for both the 'H and 13C NMR and the splitting (s, d, t, etc) and integration of the individual protons that are indicated. a) splitting: splitting: HBr, н | HA CH3 integration: integration: H H. HT splitting: integration: H CH3 TH HY HT H splitting: Нас HA I HH н splitting: integration: integration: H3C C Ha splitting: T HHH H- splitting: integration: splitting: splitting: integration: 'H NMR signals: integration:...
1) Below is molecule 1. Provide the relationship between the indicated protons below, either diastereotopic or...
1) Below is molecule 1. Provide the relationship between the indicated protons below, either diastereotopic or identical and then answer the remaining questions about the molecule. Molecule 1 has been drawn with all of the hydrogens and with none of them drawn out. a) What is the relationship b) What is the relationship between HA and HD? between Hg and HC? H. HE ΉA F HD molecule 1 c) How many signals would expect in the H NMR of molecule...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals expected in both the reactant and the product. 2) Provide the carbocation intermediate that allowed the transformation to happen at that position. 3) This molecule is (ortho, meta, para) substituted (circle one). 4) Using resonance arrows show how that carbocation can be distributed (delocalized) to multiple locations on the arene ring system. 5) Predict a different structure that can form from this delocalization. FeBrg,...
4. Consider the following two diastercomers: Both compounds generate 'H NMR spectra with the following signals:...
4. Consider the following two diastercomers: Both compounds generate 'H NMR spectra with the following signals: A multiplet between 7.20-7.63 ppm with an integration of 5H Two separate doublets between 5.70-6.50 ppm, each with an integration of 1H A singlet around 1.30 ppm with an integration of 9H Despite the similarities, how could you differentiate between the H NMR spectra of these isomers? 5. Assign each set of protons to their appropriate signals in the 'H NMR spectrum shown below....
need help with questions 1 and 2 NMR is a useful tool for differentiating isomers. For...
need help with questions 1 and 2
NMR is a useful tool for differentiating isomers. For the following compounds, predict the number of 'H NMR and C NMR signals. (Do not include the H on the OH groups in your prediction.) OH НО. ОН ОН OH OH OH TH NMR 13C NMR Assign the stereochemical labels (R or S) to the indicated atoms on pseudoephedrine hydrochloride, an over-the-counter decongestant medication. НОН CH3 HN-CH, c HH The 'H NMR and C...
Indicate how many 'H NMR signals (individual resonances, not counting splitting) are expected for the compound below. B...
Indicate how many 'H NMR signals (individual resonances, not counting splitting) are expected for the compound below. Br-CH20-CH3 Number H signals
Please explain all steps. Include degrees of unsaturation, functional groups, and signals used to determine structure. For the compounds listed below: 1. (18 points) Label each set of chemically equi...
Please explain all steps. Include degrees of
unsaturation, functional groups, and signals used to determine
structure.
For the compounds listed below: 1. (18 points) Label each set of chemically equivalent protons, using a for the set that will be have the lowest frequency (most upfield) in the 1H NMR spectrum, b for the next a. lowest, and so on. of each set of the equivalent protons. expected for each compound. b. Indicate the splitting pattern (singlet, doublet, triplet...) for expected...
1) Predict the number of signals expected in the proton spin decoupled 13C NMR spectrum of...
1) Predict the number of signals expected in the proton spin decoupled 13C NMR spectrum of the compound shown below 2) Which of the molecules below has the largest number of chemically distinct protons? a. Methyl propyl ether b, 2-butanone c. Diethyl ether 3) What would you expect the integration ratio to be for the protons, in order of chemical shift from TMS, in the molecule below? a. 4:3 b. 6:4 c. 3:3:2:2 d. 3:2 4) Select the functional group...
Could you do both questions? Thank you in advance! 2. For the reaction below: a. Predict...
Could you do both questions?
Thank you in advance!
2. For the reaction below: a. Predict the most stable product(s) and draw the mechanism OK + E b. Redraw the product(s) below and label all the non-equivalent carbons. How many signals would you expect to see in the 13C NMR of the product? Predict the chemical shifts of each carbon below. c. Redraw the product(s) below and label all the non-equivalent hydrogens. How many signals would you expect to see...
2) For the compounds below provide the amount of expected signals for both the 'H and 13C NMR and the splitting (s, d, t, etc) and integration of the individual protons that are indicated. a) splitting: splitting: HBr, н | HA CH3 integration: integration: H H. HT splitting: integration: H CH3 TH HY HT H splitting: Нас HA I HH н splitting: integration: integration: H3C C Ha splitting: T HHH H- splitting: integration: splitting: splitting: integration: 'H NMR signals: integration:...
1) Below is molecule 1. Provide the relationship between the indicated protons below, either diastereotopic or identical and then answer the remaining questions about the molecule. Molecule 1 has been drawn with all of the hydrogens and with none of them drawn out. a) What is the relationship b) What is the relationship between HA and HD? between Hg and HC? H. HE ΉA F HD molecule 1 c) How many signals would expect in the H NMR of molecule...
2. Examine the following Electrophilic Aromatic Substitution reaction. 1) Provide the number of 13C NMR signals expected in both the reactant and the product. 2) Provide the carbocation intermediate that allowed the transformation to happen at that position. 3) This molecule is (ortho, meta, para) substituted (circle one). 4) Using resonance arrows show how that carbocation can be distributed (delocalized) to multiple locations on the arene ring system. 5) Predict a different structure that can form from this delocalization. FeBrg,...
4. Consider the following two diastercomers: Both compounds generate 'H NMR spectra with the following signals: A multiplet between 7.20-7.63 ppm with an integration of 5H Two separate doublets between 5.70-6.50 ppm, each with an integration of 1H A singlet around 1.30 ppm with an integration of 9H Despite the similarities, how could you differentiate between the H NMR spectra of these isomers? 5. Assign each set of protons to their appropriate signals in the 'H NMR spectrum shown below....
need help with questions 1 and 2
NMR is a useful tool for differentiating isomers. For the following compounds, predict the number of 'H NMR and C NMR signals. (Do not include the H on the OH groups in your prediction.) OH НО. ОН ОН OH OH OH TH NMR 13C NMR Assign the stereochemical labels (R or S) to the indicated atoms on pseudoephedrine hydrochloride, an over-the-counter decongestant medication. НОН CH3 HN-CH, c HH The 'H NMR and C...
Indicate how many 'H NMR signals (individual resonances, not counting splitting) are expected for the compound below. Br-CH20-CH3 Number H signals
Please explain all steps. Include degrees of
unsaturation, functional groups, and signals used to determine
structure.
For the compounds listed below: 1. (18 points) Label each set of chemically equivalent protons, using a for the set that will be have the lowest frequency (most upfield) in the 1H NMR spectrum, b for the next a. lowest, and so on. of each set of the equivalent protons. expected for each compound. b. Indicate the splitting pattern (singlet, doublet, triplet...) for expected...
1) Predict the number of signals expected in the proton spin decoupled 13C NMR spectrum of the compound shown below 2) Which of the molecules below has the largest number of chemically distinct protons? a. Methyl propyl ether b, 2-butanone c. Diethyl ether 3) What would you expect the integration ratio to be for the protons, in order of chemical shift from TMS, in the molecule below? a. 4:3 b. 6:4 c. 3:3:2:2 d. 3:2 4) Select the functional group...
Could you do both questions?
Thank you in advance!
2. For the reaction below: a. Predict the most stable product(s) and draw the mechanism OK + E b. Redraw the product(s) below and label all the non-equivalent carbons. How many signals would you expect to see in the 13C NMR of the product? Predict the chemical shifts of each carbon below. c. Redraw the product(s) below and label all the non-equivalent hydrogens. How many signals would you expect to see...
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