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- Rank the following dienes in their rate of reaction with the same dienophile in a Diels-Alder reaction. For example, 1 = fastest or most reactive diene, 4 = slowest or least reactive diene.9. Which of the following dienes could react with acrylonitrile (dienophile in the reaction) in a Diels-Alder reaction? CH, A acrylonitrile B B. pCH, HC C CH Nal 3- BrChemistry Question
- 2) Rank the following dienes in order of increasing rate of Diels-Alder reaction with maleic anhydride. You do not need to explain your ranking. H3C. H3CO Diene A Diene B Diene CConsider the four trienes E–H. Which compound is most reactive in the Diels–Alder reaction?What is the product of the following Diels-Alder reactions? +
- True or False: Acetylene is a naturally occurring conjugated diene True or False: The Diels-Alder reaction has the stereochemistry of the dienophile is retained in the product. True or False: When looking at kinetic vs. thermodynamic products the kinetic product predominates at low temperature. True or False: the mechanism of the Diels-Alder reaction is three π bonds break; one σ bond and two π bonds form.6. Predict the major product for the following Diels-Alder reaction. 7. Which diene and dienophile would react to give the following Diels-Alder product? Сон 8. Which diene and dienophile would react to give the following Diels-Alder product? IllDiels—Alder reaction of a monosubstituted diene (such as CH2 = CH – CH = CHOCH3) with a monosubstituted dienophile (such as CH2 = CHCHO) gives a mixture of products, but the 1,2-disubstituted product often predominates. Draw the resonance hybrid for each reactant and use the charge distribution of the hybrids to explain why the 1,2-disubstituted product is the major product.
- Diels–Alder reaction of a monosubstituted diene (such as CH2=CH–CH=CHOCH3) with a monosubstituted dienophile (such as CH2=CHCHO)gives a mixture of products, but the 1,2-disubstituted product oftenpredominates. Draw the resonance hybrid for each reactant, and use thecharge distribution of the hybrids to explain why the 1,2-disubstitutedproduct is the major product.A2 What is the inverse electron demand Diels–Alder reaction? Please pick a pair of a diene and a dienophile from the following dienes and dienophile that will undergo this type of reaction. Please show how this reaction works using Frontier Molecular Orbitals. What is the reaction product?9. Determine the product of the following Diels-Alder reaction. CO₂Et 206°C