Homework Answers
In this reaction, 2 molecules of aldehyde are added to the nitroethane consecutively.
NMR can be explained as follows
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The following reaction is a variation of an aldol...
4 The following reaction is a variation of an aldol condensation (it is actually called a...
4 The following reaction is a variation of an aldol condensation (it is actually called a Henry reaction). Based upon the given NMR spectrum, what do you belleve is the product? (6 pts) 3 PPM integrals from left to right-1:3:1:6)
please answer all of the 4 questions What cyclic product is formed in the intramolecular Aldol...
please answer all of the 4 questions
What cyclic product is formed in the intramolecular Aldol condensation when the following compound is treated with aqueous NaOH? OT 11 0 0 IV What is the Aldol addition product formed from reaction of the following compound with itself? ++,C#o Cาถวาย 0 0 0 What is the cyclic product formed in the intramolecular Aldol condensation when the following compound is treated with aqueous NaOH? 08 pod od IV OT O II III O...
please dont miss the questions 11-4: Aldol - 1 For this assignment, the target compound that...
please dont miss the questions
11-4: Aldol - 1 For this assignment, the target compound that you should synthesize is 2-ethyl-3-hydroxy-hexanal. This is a symmetric aldol reaction. Examine the product and determine which bond may be formed to link the two aldehydes. Keep in mind the mechanism and identify the nucleophile and the electrophile. Synthesis Procedures 1. Start Virtual ChemLab and select Aldol – 1 from the list of assignments on the whiteboard. After entering the synthesis laboratory, use the...
answer all questions. Consider the following compound for question 3 & 4. Hon this carbon 3....
answer all questions.
Consider the following compound for question 3 & 4. Hon this carbon 3. Answer the following questions about H NMR spectroscopy. a. How many signals would you expect to appear in the 'H NMR spectrum of this compound? b. What would the multiplicity (splitting) of the peak corresponding to H? 4. Answer the following questions about "C NMR spectroscopy. a. How many signals would you expect to appear in the "C NMR spectrum of this compound? b....
This experiment was based on Aldol-dehydration reaction using unknown aldehydes and ketones. We carried out an...
This experiment was based on Aldol-dehydration reaction using
unknown aldehydes and ketones. We carried out an aldol condensation
between an unknown aldehyde and an unknown ketone. Here are the
list of possible unknown aldehydes and ketones that were used.
Here is the NMR of the final product. Please predict the
structure given the melting point is 163 degrees Celsius.
The analysis of the 1H NMR spectrum should include a detailed
assignment of each of the NMR resonances to the protons...
Can you answer these please? Aldol Assignment Write the answers to 1,3 & 5 on a...
Can you answer these please?
Aldol Assignment Write the answers to 1,3 & 5 on a sheet of paper and be prepared to email it to me. 1. Why is it important to maintain equivalent proportions of reagents in this experiment? 2. What side products do you expect in this experiment? How are they removed? 3. The geometric possibilities for products are cis/cis, trans/trans or trans/cis. Which isomer do you think is the major product and why?. 4. What evidence...
Please answer questions 2,3, and 4 that correspond to the nmr spectra of (2E,6E)-2,6-dibenzylidenecyclohexanone. Product: ppm...
Please answer questions 2,3, and 4 that correspond to the nmr
spectra of (2E,6E)-2,6-dibenzylidenecyclohexanone.
Product:
ppm BE 06 135 94 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 ppm 30 20 2. Are there any non-aromatic or non-alkene protons seen on the 'H NMR spectrum (yes or no)? If so, list the corresponding ppm value(s): 3. Are there any peaks upfield of 70 ppm seen in the 13C NMR spectrum (yes or...
I need help with these questions please! I did them and I want to make sure...
I need help with these questions please! I did them and I want
to make sure that I got the right answers.
thanks!
1. Determine the structure of the chemical compound responsible analysis is %C, 71.98; %H, 6.71. (10 pts) i compound responsible for the carbon NMR spectrum. The elemental Egthio O2 ID=5 180 160 140 120 100 6 PPM 2. Determine the structure of the chemical compound responsible for the carbon NMR spectrum. The formula is C:H,.. (10 pts)...
help please, all questions 14. (a) (4 points) Give the product for the following aldol addition...
help please, all questions
14. (a) (4 points) Give the product for the following aldol addition reaction. in NaOH, H2O 2 (b) (4 points) Give the product for the following reaction. 1. LDA, -78°C 2. CH3CH2CH2C1 (c) (4 points) Give the final product of the following reaction sequence. NH2 ру CH3CH2C1 NaOH + CI AICI: H2O
Draw the major product of the following reaction that begins with a retro-aldol, followed by an...
Draw the major product of the following reaction that begins with a retro-aldol, followed by an intramolecular aldol condensation. (5 points) OH OH C7H100 H20 heat Create OscerSketch Answer 6 Determine and draw the structures of compounds A and B only. Do not draw the structure of compound X. Place each structure above its letter. HINT: Both A and B are esters. (10 points) LDA 1. compound B 1. NaOEt O= O= A Х -78 °C 2. H30* OEt 2....
4 The following reaction is a variation of an aldol condensation (it is actually called a Henry reaction). Based upon the given NMR spectrum, what do you belleve is the product? (6 pts) 3 PPM integrals from left to right-1:3:1:6)
please answer all of the 4 questions
What cyclic product is formed in the intramolecular Aldol condensation when the following compound is treated with aqueous NaOH? OT 11 0 0 IV What is the Aldol addition product formed from reaction of the following compound with itself? ++,C#o Cาถวาย 0 0 0 What is the cyclic product formed in the intramolecular Aldol condensation when the following compound is treated with aqueous NaOH? 08 pod od IV OT O II III O...
please dont miss the questions
11-4: Aldol - 1 For this assignment, the target compound that you should synthesize is 2-ethyl-3-hydroxy-hexanal. This is a symmetric aldol reaction. Examine the product and determine which bond may be formed to link the two aldehydes. Keep in mind the mechanism and identify the nucleophile and the electrophile. Synthesis Procedures 1. Start Virtual ChemLab and select Aldol – 1 from the list of assignments on the whiteboard. After entering the synthesis laboratory, use the...
answer all questions.
Consider the following compound for question 3 & 4. Hon this carbon 3. Answer the following questions about H NMR spectroscopy. a. How many signals would you expect to appear in the 'H NMR spectrum of this compound? b. What would the multiplicity (splitting) of the peak corresponding to H? 4. Answer the following questions about "C NMR spectroscopy. a. How many signals would you expect to appear in the "C NMR spectrum of this compound? b....
This experiment was based on Aldol-dehydration reaction using
unknown aldehydes and ketones. We carried out an aldol condensation
between an unknown aldehyde and an unknown ketone. Here are the
list of possible unknown aldehydes and ketones that were used.
Here is the NMR of the final product. Please predict the
structure given the melting point is 163 degrees Celsius.
The analysis of the 1H NMR spectrum should include a detailed
assignment of each of the NMR resonances to the protons...
Can you answer these please?
Aldol Assignment Write the answers to 1,3 & 5 on a sheet of paper and be prepared to email it to me. 1. Why is it important to maintain equivalent proportions of reagents in this experiment? 2. What side products do you expect in this experiment? How are they removed? 3. The geometric possibilities for products are cis/cis, trans/trans or trans/cis. Which isomer do you think is the major product and why?. 4. What evidence...
Please answer questions 2,3, and 4 that correspond to the nmr
spectra of (2E,6E)-2,6-dibenzylidenecyclohexanone.
Product:
ppm BE 06 135 94 190 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 ppm 30 20 2. Are there any non-aromatic or non-alkene protons seen on the 'H NMR spectrum (yes or no)? If so, list the corresponding ppm value(s): 3. Are there any peaks upfield of 70 ppm seen in the 13C NMR spectrum (yes or...
I need help with these questions please! I did them and I want
to make sure that I got the right answers.
thanks!
1. Determine the structure of the chemical compound responsible analysis is %C, 71.98; %H, 6.71. (10 pts) i compound responsible for the carbon NMR spectrum. The elemental Egthio O2 ID=5 180 160 140 120 100 6 PPM 2. Determine the structure of the chemical compound responsible for the carbon NMR spectrum. The formula is C:H,.. (10 pts)...
help please, all questions
14. (a) (4 points) Give the product for the following aldol addition reaction. in NaOH, H2O 2 (b) (4 points) Give the product for the following reaction. 1. LDA, -78°C 2. CH3CH2CH2C1 (c) (4 points) Give the final product of the following reaction sequence. NH2 ру CH3CH2C1 NaOH + CI AICI: H2O
Draw the major product of the following reaction that begins with a retro-aldol, followed by an intramolecular aldol condensation. (5 points) OH OH C7H100 H20 heat Create OscerSketch Answer 6 Determine and draw the structures of compounds A and B only. Do not draw the structure of compound X. Place each structure above its letter. HINT: Both A and B are esters. (10 points) LDA 1. compound B 1. NaOEt O= O= A Х -78 °C 2. H30* OEt 2....
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