Part V. Rank the following dienes from most reactive to least reactive in a Diels Alder reaction. fastest rxn rate A B H₂N. D E slowest rxn rate
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Rank the following dienes from most reactive to least reactive in a Diels Alder reaction. please explain steps
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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.Rank the following dienes from most reactive to least reactive in a Diels–Alder reaction:Label each diene as reactive or unreactive in a Diels–Alder reaction
- a. When HBr adds to a conjugated diene, what is the rate-determining step? b. When HBr adds to a conjugated diene, what is the product-determining step?Show that the [4 + 2] Diels–Alder reaction is photochemically forbidden.P17.18 Rank the following dienes in terms of reactivity in DielsAlder reactions (from least reactive to most reactive).
- With reference to diene A:a. What product is formed when A undergoes a [2 + 2] cycloaddition?b. What product is formed when A undergoes a [3,3] sigmatropic rearrangement?a. Show that [4+4] cycloaddition of two butadiene molecules to give cycloocta-1,5-diene is thermally forbidden but photochemically allowed b.Thermally allowed cycloaddition of the two butadiene molecules when there's a different. Show reaction and explain why it is thermally allowChoose the correct option. 1. Which of the following reactions best describes the Diels-Alder reaction?A)electrocyclic reactionB)cycloaddition reactionC)sigmatropic reactionD)radical reactionE)nucleophilic substitution reaction 2.Which of the following statements best describes the theory of Conservation of Orbital Symmetry?A)Molecular orbital of the transition state must be similar to that of the reactant.B)Molecular orbital of the transition state must be similar to that of the product.C)Only s orbitals from reactants and products are utilized.D)Molecular orbitals of reactant and product must have similar symmetry.E)Molecular orbitals of reactant and product must have different symmetry. 3.Through what type of single pericyclic reaction did the reaction proceed? 5-methylcyclopenta-1,3-diene to 1-methylcyclopenta-1,3-dieneA)[1,2] sigmatropic hydrogen migrationB)[1,3] sigmatropic hydrogen migrationC)[1,4] sigmatropic hydrogen migrationD)[1,5] sigmatropic hydrogen migrationE)none of the…
- Draw the products formed when the following diene is treated with O3 followed by CH3SCH3.Which diene is more reactive in a Diels–Alder reaction? CH2=CHCH=CHOCH3 or CH2=CHCH=CHCH2OCH3In 4+2 cycloaddition, ENDO stereochemistry is preferred because: endo stereochemistry allows the diene to adopt s-cis conformation. endo stereochemistry results in less steric hindrance. the transition state leading to endo stereochemistry is higher energy. it allows for additional π to π overlap between the diene and the dienophile.