Homework Answers
The correct option is C and D
Explanation: Both Group CO2Me should be coplanar i.e either above the plane as in option c or below the plane as in option d.
Option B, H, G, F is incorrect because the bridge contain only 1 carbon atoms in these molecules but originally it comprises 2 carbon atom.
Option A and E are incorrect because of the group CO2Me are shown in different plane.
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The Dlels-Alder Reaction: For the Diels-Alder reaction below, select the expected Diels Alder products). More than...
Draw one of the expected products of the Diels–Alder cycloaddition reaction shown below. Use wedge and...
Draw one of the expected products of the Diels–Alder
cycloaddition reaction shown below. Use wedge and dash bonds to
show the stereochemistry.
Draw one of the expected products of the Diels- Alder cycloaddition reaction shown below. Use wedge and dash bonds to show the stereochemistry. Diene Dienophile
5. Draw the Diels Alder reaction products below (show stereochemistry where applicable).
5. Draw the Diels Alder reaction products below (show stereochemistry where applicable).
5. Draw the Diels Alder reaction products below (show stereochemistry where applicable).
Select the major product of the following Diels-Alder reaction. Enter Your Answer: A B ...
Select the major product of the following Diels-Alder
reaction.
Enter Your Answer: A
B C D
E F
heat OCH3 OCH OCH3 CN OCH3 LCN CN WICN CH3 OCH3 OCH + enantiomer + enantiomer + enantiomer + enantiomer + enantiomer + enantiomer с
The Diels-Alder reaction involves the coupling between a diene and a dienophile. In the box below...
The Diels-Alder reaction involves the coupling between a diene and a dienophile. In the box below draw the structure of the bicyclic product obtained from the Diels-Alder reaction of the following compound with cyclopentadiene. • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one.
Sort the dienophiles shown below by increasing reactivity in a Diels-Alder reaction with cyclohexa-1,3-diene. No -...
Sort the dienophiles shown below by increasing reactivity in a Diels-Alder reaction with cyclohexa-1,3-diene. No - CN Bro. с в Cyclohexa-1,3-diene 01.0,A,C,B O 2.B,A,C,D O 3.C,B,D,A 4. B, A, D, C
1. Explain the principal synthetic value of the Diels-Alder reaction. 2. What is the product expected...
1. Explain the principal synthetic value of the Diels-Alder reaction. 2. What is the product expected from the reaction of 1,3-butadiene and 3- sulfolene? 3. a. Find the chemical structure of aldrin. b. Do a literature search to find out more about the toxicity of insecticides such as aldrin. Suggest a reason that the insecticide Aldrin accumulates in animal tissue.
This compound was formed by a Diels-Alder reaction. In the box below draw the structures of...
This compound was formed by a Diels-Alder reaction. In the box below draw the structures of the diene and the dienophile that were used to form this product. e Consider ElZ stereochemistry of alkenes. In cases where there is more than one answer, just give one. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu.
Question 31 (2 points) What are the expected major products of the reaction sequence shown below?...
Question 31 (2 points) What are the expected major products of the reaction sequence shown below? 1. O 2. H70 OH o OH 11 III IV v Oa) I and IV ob) I and II oc) I, III and IV od) II, III and IV Question 32 (2 points) Which one of the following dienophiles is least reactive in the Diels-Alder reaction? NO, phony HCO 11 IV Oa) III ob) IV Oc) 1 od) 11
Consider the Diels-Alder cycloaddition reaction below and complete parts (a)-(b) below.
Consider the Diels-Alder cycloaddition reaction below and complete parts (a)-(b) below. D = deuterium = 2H (a) Draw the major regioisomer (or in other words, constitutional isomer) expected to form. Also, draw appropriate resonance structures to explain why only one constitutional isomer is expected to form. Discuss the interactions between the diene and dienophile that govern this constitutional isomer being the only one expected. (b) Redraw the regioisomer from part (a) and show the appropriate stereochemistry using correct dash/wedge notation expected for the...
EXPERIMENT 2A DIELS-ALDER REACTION OF ANTHRACENE REFERENCES Pavia et al (4/e): Tech. 6.1/6.2, 7.2-7.4 Klein (1/e)...
EXPERIMENT 2A DIELS-ALDER REACTION OF ANTHRACENE REFERENCES Pavia et al (4/e): Tech. 6.1/6.2, 7.2-7.4 Klein (1/e) pp. 784-792 EQUATION heat Diels-Alder Adduct 9,30-dihydroanthracene-9,10- endo-o B-seccinic anhydride mp 262264 PROCEDURE Place 0.200 grams of anthracene and an equal molar amount of maleic anhydride in 5 mL of xylenes in a 10-mL round-bottom flask with a magnetic stir bar. Attach a water-cooled condenser and reflux for 60 minutes. Allow the solution to cool to room temperature and then place the flask in...
Draw one of the expected products of the Diels–Alder
cycloaddition reaction shown below. Use wedge and dash bonds to
show the stereochemistry.
Draw one of the expected products of the Diels- Alder cycloaddition reaction shown below. Use wedge and dash bonds to show the stereochemistry. Diene Dienophile
5. Draw the Diels Alder reaction products below (show stereochemistry where applicable).
5. Draw the Diels Alder reaction products below (show stereochemistry where applicable).
Select the major product of the following Diels-Alder
reaction.
Enter Your Answer: A
B C D
E F
heat OCH3 OCH OCH3 CN OCH3 LCN CN WICN CH3 OCH3 OCH + enantiomer + enantiomer + enantiomer + enantiomer + enantiomer + enantiomer с
The Diels-Alder reaction involves the coupling between a diene and a dienophile. In the box below draw the structure of the bicyclic product obtained from the Diels-Alder reaction of the following compound with cyclopentadiene. • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one.
Sort the dienophiles shown below by increasing reactivity in a Diels-Alder reaction with cyclohexa-1,3-diene. No - CN Bro. с в Cyclohexa-1,3-diene 01.0,A,C,B O 2.B,A,C,D O 3.C,B,D,A 4. B, A, D, C
This compound was formed by a Diels-Alder reaction. In the box below draw the structures of the diene and the dienophile that were used to form this product. e Consider ElZ stereochemistry of alkenes. In cases where there is more than one answer, just give one. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu.
Question 31 (2 points) What are the expected major products of the reaction sequence shown below? 1. O 2. H70 OH o OH 11 III IV v Oa) I and IV ob) I and II oc) I, III and IV od) II, III and IV Question 32 (2 points) Which one of the following dienophiles is least reactive in the Diels-Alder reaction? NO, phony HCO 11 IV Oa) III ob) IV Oc) 1 od) 11
EXPERIMENT 2A DIELS-ALDER REACTION OF ANTHRACENE REFERENCES Pavia et al (4/e): Tech. 6.1/6.2, 7.2-7.4 Klein (1/e) pp. 784-792 EQUATION heat Diels-Alder Adduct 9,30-dihydroanthracene-9,10- endo-o B-seccinic anhydride mp 262264 PROCEDURE Place 0.200 grams of anthracene and an equal molar amount of maleic anhydride in 5 mL of xylenes in a 10-mL round-bottom flask with a magnetic stir bar. Attach a water-cooled condenser and reflux for 60 minutes. Allow the solution to cool to room temperature and then place the flask in...
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