1. What if you were trying a 6+2 diels alder reaction to form an eight member ring? Would it be successful? Is there constructive overlap? Will the symmetry allowed reaction occur?
2. What about an 8+2 reaction? Will a symmetry allowed reaction occur?
3. Draw the HOMO of the whichever of the above reactions was symmetry forbidden and determine if the reaction would be photochemically allowed.
1. What if you were trying a 6+2 diels alder reaction to form an eight member...
Question 6 2 pts Which of the following cannot be a diene in the Diels-Alder reaction? ooooo III IV Il & IV O I&IV Only II Only IV Only! Only III II & III All the M.O.s of 1,3-butadiene are shown below. Which picture represents the Photochemically excited HOMO? 888 IV O IV O II
Post- Laboratory Questions: 1. Draw the product of the following Diels-Alder reactions 2. What starting materials would be used to prepare the following compound by the Diels- Alder reaction? 3. Cyclopentadiene dimerizes easily. Before using cyclopentadiene in a reaction, it is necessary to crack the diene. Draw the Diels-Alder reaction for the dimerization of cyclopentadiene. 4. What are the products of the following Diels-Alder reactions? Show the stereochemistry where applicable
diels alder reaction Draw a structure for the exo product formed by cyclopentadiene and maleic anhydride. Because the exo form is more stable than the endo form, why is the endo product formed almost exclusively in this reaction? In addition to the main product, what are two side reactions that could occur in this experiment? The infrared spectrum of the adduct is given in this experiment. Interpret the principal peaks.
Draw the Diels-Alder mechanism for the reaction of TPCPD and styrene to form 3A/3B. Illustrate how compound 4 can be formed from 3A or 3B. Describe key aspects of the mechanim AND what is different about the Diels-Alder mechanism that leads to 3A & enantiomer. Ph Ph Ph Ph KOH (20%) | Ph TEG, 120 ° 2 Ph Ph Ph or Ph 120°C Ph Ph Ph Ph Ph Ph 4 3A endo Ph or 3B exo Ph TEG = triethylene...
1) Predict the major product(s) of each Diels-Alder reaction. Be clear with stereochemistry H3C (C0) [4+2] H3C CH3 1 CH3 heat heat 2) Draw the HOMO and LUMO of (3E,5E)-2-methylocta-1,3,5,7-tetraene.
1) Predict the major product of each of the following Diels-Alder Reactions 2) What compound could be used to make the product below in an intramolecular Diels-Alder Reaction? O,
This is an organic chemistry question regarding the Diels-Alder reaction. The problems are 16.22 and 16.18. I would like to know if I did these correctly. If I did not, could someone help me go through the process? er reaction Conjugation, Resonance and Dienes Chapter 16 dienophile react in a Diels-Alder CH3 C. 16.18 Draw the product formed when each diene and Problem 16.18 COOCH3 15 Specific Rules Governing the Diels-Alder Reaction 16.13A Diene Reactivity Rule [1] The diene can...
Quinones are excellent dienophiles in the Diels-Alder reaction. What product would you expect from reaction of 2-methylbenzoquinone with 2 equivalents of 2,4-hexadiene? Drawn out.
Please help!! Questions 1. Why does the trans conformation of a diene, in reaction with a dienophile, not lead to a Diels-Alder reaction product? 2. Complete the following Diels-Alder reactions. Provide the major endo-product(s). Diene Dienophile Product(s) Domov - 0.0- 3. How many a electrons are there in a molecule of 1.3-butadiene? 106 4. What is the maximum number of electrons that can reside in a molecular orbital? (Hint: It is the same maximum number that can fit into an...
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.