
Give reactants that would make each of the following Diel-Alder products. C6Hs CO2CH3 co2CH3
Give the possible diene and dierophile that react to react to produce the next diel-alder product, •CN OS
Give the reactants including proper stereochemistry that would
give the following Diels-Alder product.
CN OCH 3 A) CHO CHO B)
Which of the following statements about the Diel-Alder reaction
are true?
Which of the following statements about the Diels-Alder reaction are true? I. The Diels-Alder reaction is endothermic. II. The Diels-Alder reaction is exothermic. III. The Diels-Alder reaction is favored entropically. IV. The Diels-Alder reaction is disfavored entropically. V. The Diels-Alder reaction is favored at extremely high temperatures. VI. The Diels-Alder reaction is favored at room temperature to moderate temperature. (A) I, IlI, and VI (B) II, IV, V (C)...
predict the major products of the following Diels-Alder
reactions showing relative stereochemistry where appropriate.
Diels-Alder СН3 H Diels-Alder + CO2CH3 Diels-Alder CN OCH3
4. What dienes and dienophiles would react to give the following Diels-Alder products 18 pts) 5. Predict the products of the following Diels-Alder reactions. (10 pts) 6. Explain why each compound or ion should be aromatic, antiaromatic, or nonaromatic. (10 pts)
Which would be the best synthesis of the following compound? CO2CH3 CO2CH3 .CO2CH3 CO2CH3 CO2CH3 CO2CH3 CO2CH3 CH3O2C I II III CO2CH3 + 2 HCO2CH3 CO2CH3 IV V Select one or more Od V
3. Write the structures of the diene and dienophile that would form each of the products shown via a Diels- Alder reaction. 4 COCH3 ) II CO2CH3
Give the compounds that you would use to make the following compound using a Diels- Alder reaction. Be sure to show stereochemistry (cis or trans) if needed. (8 points)
Deconstruct the following Diels-Alder adduct. Show what
reactants, in any order, would be needed to produce the
following:
Deconstruct the following Diels-Alder adduct. Show what reactants, in any order, would be needed to produce the following:
19.59 Identify the reactants that you would use to make each of the following imines: (b) 19.60 Identify the reactants that you would use to make each of the following enamines: 19.61 Predict the major product(s) obtained when each of the follow- ing compounds undergoes hydrolysis in the presence of H30 19.62 Identity all of the expected products when below is treated with aqueous acid: roducts when the compound Excess H3O+